Document NNE55EGkYR7Nq8dyYwRxMEXDy

WEDNESDAY, OCTOBER 18. 1972 WASHINGTON. D.C. VohNM 37 9 Number 202 PART II DEPARTMENT OF LABOR OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION OCCUPATIONAL SAFETY AND HEALTH STANDARDS 90 KfeM9-ft.lt----- 1 TEN 6329 22102 tUllS AND REGULATIONS Title 29--LABOR opt r XVII--Occupational Safety and Hoakh Administration, Dopartm nt of labor PART 1910---OCCUPATIONAL SAFETY AND HEALTH STANDARDS Pursuant to authority in sections 8 and <> of the WUHnnw-Steiger Occupa tional Safety and Health Act of 1570 iM But. 1503, 1600: 35 US.C. 565, 067) and In Secretary of Labor's Order No. 13-71 (10 P R. 0764), Part 1010 of TitiO 30 of the Code of Federal Regulations is hereby revised to read as set forth be low. This revision includes amendments through Sept. 33. 1073. The purpose of the revision Is m to publish fully in one plare the present occupational safety and health standards contained therein In rder to reflect many changes made during the current year and thereby to improve their usefulness snd faeUiUte their enforcement: <3) to correct a num ber of typographical and clerical errors in the text of the sUndards; and (3) to publish Indexes with the standards, which are Intended to permit quicker access to pertinent sUndsrds. Since this revision does not make any subaUntive changes in the sUndards, It U not necessary to provide notice of pro posed rulemaking, opportunity for pub lic participation therein, nor any delay ^lii effective date. For the same reason. JRugd cause is found for not following the ^Alsr procedure for rulemaking pro- wd in 5 U.S.C. 553 and for making this revision effective immediately. Signed nt Washington. D.C. this 4 da.v of October 1972. O. C. Oventkc*. Assistant Secretary of Labor, u.," : i'.i) I J'.'li I'voe I 'itii :,no d Subvert A--tinl Purpose and scop*, rvfmiiuii*. Peidlcii* I or the ireuaiice. amendncut. or repent of * standard .inieiulmem* to this part. Applicability o( standards. liK-nrpor.iUon by reicrenc*. Subvert t--Adevllen and lulentien *1 Srtublithed federal Standard* : tit): i s. ip.. ut; purpose. II to 1.' C .lutruci.on worn. WIO 1.1 Ship repairing. l.iiOU Shipbuilding. !.t;) is Sh.pbrn tithig. i-ll'Mu Lous-'.urnig. I'tlti IT r'lfct tlvc (l itM i > 11* IS Change-i in mi a Wished Federal ..i.fiil iids A .lie ins dlls' Subvert C-- lStitrveii) Subvert 0--Wafting--Werhing Surface* mo 21 1 19->J UlOfJ J310 3S 1*10 23 Definition*. Griiemi requirement*. riii.irdlug floor and wall openingi and hole*. Pried industrial stair*. Portable wood laddr*. Portable moral Udder*. M10J7 131030 101030 101030 131031 19L0J3 1S10.M 1I10JS 131037 IS loss 1S10SS 1910.40 Fixed ladder*. Safety requirement* for mhld ta|, Manually propelled moMlo tMdsr undo sad soaffold* (town). Other working turfsots. dourest of stsadstds. dtsadsrds orfsotssttons. Wwtrt P**dttn td ItfMt Definition*. Osnarsl requirement*. Mum of agreae, general. Specific Bdoii of sgrsM requlremenu by oocupaoey. |leeenr>d| Source* of standard*. Standard* orgnalmtlon*. Vehicle-Meunfed Wart PtaHemw 191030 1910.47 is to.as 1910.90 1410.70 Po|wRe|r mplualtsfo^rmms qfoir sstsrior buildVablcla-mountad elevating sad ro tating work platforms, Manmts. Sources of standards. Staudard* organisation*. Subvert 0--Ouuvetleoel MeaUb sad Cnvlreniamtel Caalral 1910.93 1910S3a lllOSt 1S10S3 1910SS 1910.97 10103* 1010.99 1910.100 Mr contaminante. A*be*toe. Ventilation. Occupational noise txpotur*. Ionising radiation. Nonionizing radiation. Effective dates. Source* of standards. Standards organizations. Subvert M--Kererdeui bdiHsh 1010.101 Compressed gsees (ganeral require ments). , 1910.103 Acetylene. 1010.103 Hydrogen. 1910.104 Oaygen. 1510.105 Nitrous oxide. 1910.105 PUmmeble and com bust Ibl* liquids. 1910.107 Spray finishing using flammable and combustible materials, into. 10S Dip tanks containing flammable or combustible liquids. 1310. WO Explosives end blasting agents. 1010.110 Storage and handling of Uquldad petroleum gases. 1910.111 Storage and handling of anhy drous ammonia. 1010, III |Reserved| 1910.113 | Reserved! I910.H4 Effect lee date*. 1010.113 Sources of standards. 1910.119 Standards organizations. Subvert I--Ve/tenal Pretertive tquivmewt 1010.133 General requirements. 1910.133 Eye and fact protection. 1010.134 Respiratory protection. 1910-133 Occupational head protection. 1010.15C Occupational foot protetUon. 1010.137 Electrical protective devices. 1010. 133 Ktfjcilvc dates. IHO. 139 Sources of standard*. 1910 140 Otandnrd* organization*. Subvert J--General tavlrenmemel Cardrail 1010 111 :limitation. 1310. 143 Temporary labor camp*. 1010.143 Nonwater carriage disposal systems. 1910. 144 Safety color code for marking physical hazards. 1910 143 .Specifications fur accident preven tion sign* and tags. loio ltd ! Reserved | 1010 147 Sources of standard*. 1910.149 Standards organlaatlona. 1910.149 Effective dates. Subpert K--Medicef and Pint Aid 1910.1S1 Medical servleee and Ant aid. 1910.159 |Reserved) 1910.133 soureec or ttandard*. Subvert 1--fl*e Pretest!#* 1919.189 Definitions applicable to this subpart. Pcttuti Plat Soceaseston lotnrtaurr 1910.137 Portable fir* txtlthnlaher*. 1910. IM Standpipe and hose eyeteou. Pnn Pm* Su.'ivumioh XqtrrvMcsrv 1910.199 Autorevtl; iprlnklsr system*. 1919.190 Plied dry chemical extinguishing system,i. 5910.191 Carbon dioxide eztlngulchlsg system*. 1910.193 Other special Axed extinguishing system* jf-t-iertedl Ontxa Pus PtotxcrioK Svenme 1910.199 Local Arn alarm signaling systems. 1910.104 Pit* brigade*. (Reserved) 1010.109 Effective daU.s. 1910.109* Sourcee of standards. 1910.195b Standard* organisation*. Subvert M--Campietted Gel and Cempreiierl Ah !*elpin*trt 1910.199 Inspection of compressed go* y .lader*. 1010.197 Safety relief device* for ecu.- preeaad gee,cylinder*. 1010. IM Safsty relief deviee* for cargo and portable tanks storing cor., prossad gate*. 1010.199 Air receiver*. 1910.179 Sources of standard*. 1910.171 Standards organisations. Subvert N--Maltrteli Mandliaf ead SSeroge 1010,170 Handling material*--genual. 1010.177 Indoor general storage. 1910.179 Powered Industrial truck*. 1910.179 Overhead and gantry crane*. 1910.100 crawler, locomotive, and truck crane*. 1010.101 Derncks. 1910.193 Effective date*. 1910.193 Source* of standard*. 1910.194 Standards organisation*. Subvert O--Mucbiaery *( Mertiiae Ovu/dtoy 1910311 Definition*. 1910313 General requirement* for *11 inn. chines. 1010313 Woodworking machinery require- ineiu.i. 1910.314 Cooperage machinery. 1910313 Abrasive wheel machinery. 1010313 Mill* and calender* In the rubber and plenties Industries. 1010317 Mechanical power presacs. 1010313 Forging machines. 1010319 Mechanical power-transmission ip- par.tf u*. 1010-370 ^ .f~:lU c date I, 1310.311 Soiirvei <( standards. 1010333 Ut.vM'.urti orgmUsntlons. Subport P-- Hnnil uaJ kertebl* Pewered Teelt ( Gfliei :i ` i l M;M t-|ulpai*nl 1010.341 1010343 1010343 1010344 1010343 iK-WiKli .*. ihuvl aiul jMrublv powered tool* and vqulpment, general. Otutrrttng nr puruhlo powered tool*. Ollier portable tools and equip ment. Effct live tlitfc i. 10K34I1 Source, of ii.iathiriti. 1310.247 Standard.; vi vMil-falloita. /I01IAI SlOlSnt, VOt. 37, MO. .. --VflONISOAY, CTOtt* 13. 1072 TEN 6330 tuns AND IEGUIATIONS 22231 I 1810.107 (b)(1), (b)(2), (b)(2), (b)(4), lb)(S)(i), (b)(2) (III), (b)(2) (It), (b)(2). (b)(7). (b)(2), |b)(10). (e)U). (C)(4). <e)(5). (e)(2).(e)(7), (d),(e)(7).(e)(2). UHD. (1) (2), (b). (1). (j). (1) (2), (1) (3), *li (4). (1) (2), (1) (7), end (m)(i). 11210.102 (b). (e). (e)(1). (c)(2). <|)(3>, 21(4). end (g)(3). Compressed Oaa Association, Inc., MO Fifth Avenue. New Tork. NY 10038. American Society of Mechanical engineers Inc., United Engineering Center, 348 East 47th Street, New York, NT 10017. American Petroleum Institute, 1M1 K Street MW.. Washington. DC 30006. National Board of Boiler and Praaaura Vaa- (vll) Protectors should be kept clean and In good repair. <3> Persons whose vision requires the use of corrective lenses In spectacles, and who ore required by this standard to wear eye protection, shall wear goggles or spec tacles of one of the following types: t 1910.102 (|)(2) end (h). tel, Inspectors, 1184 North High Stmt, (I) Spectacles whose protective lenses I 1910.110. ) ioio.ni. <c) Notwithstanding anything In barograph <n), (b>. or (d) of this sec tion. any provision in any other section of this subpart which contains In itself a Columbus, OH 43201. Amerloon Notional Standard* Institute, 1430 Broadway. Naw York. NY 10013. American Soclaty for Tsating and Materia)* (ASTM), 1818 Baca Street Phllsdelpbia, PA 19103. Underwriter* Laboratories, Inc. (UL). 307 provide optical correction. (II) Goggles that can be worn over corrective spectacles without disturbing the adjustment of the spectacles. dll) Goggles that Incorporate correc tive lenses mounted behind the protective peclfic effective date or time limitation East Ohio Street, Chicago. IL 80611. lenses. shall become effective on such date or shall apply In accordance with such limitation. Subpart I--Personal ProtocHvo Equipment (4) Every protector shell be distinctly marked to facilitate Identification only of the manufacturer. !> Notwithstanding anything in paragraph <a), or <b) of this section, if uiy standard in 41 CPU Part 20-204, other than a national consensus stand ard Incorporated by reference In i 50204.2(a)(1). la or becomes applicable at any time to any employment and place of employment, by virtue of the Walsh- Healey Public Contracts Act, or the Serv ice Contract Act of 1008, or the National Foundation on Arts and Humanities Act of 1065, any corresponding established Federal standard In this Subpart H which is derived from 41 Cm Part 50204 shall also become effective, and shall be applicable to such employment and place of employment, on the same date. 11910.115 Sources of standard*. See. Source 1*10.101................... . 1210.102.. ............. 1010.102.. .--....... 41 cm 20-204.27, 70, sod 71. 41 cm SO-204.U. MFFA No. son-1222, Standard for Llqul- ttod Hydrogen Sys tem* st Consumer mtw 119)0.133 Ceneral requirements. (a) Application. Protective equipment. Including personal protective equipment tor eyes, toe*, bead, and extremities, pro tective clothing, respiratory devices, end protective shields and barriers, shall be provided, used, and maintained in a sani tary and reliable condition wherever it la necessary by reason of hasards of processes or environment, chemical has ards. radiological hasards, or mechanical Irritants encountered In a manner capa ble of causing Injury or Impairment In the function of any part of the body through abeorptlon. inhalation or phys ical contact. (b) Smploiee-owned equipment. Where employee* provide their own pro tective equipment, the employer shall be reepontlble to assure its adequacy, in cluding proper maintenance, and sanita tion of such equipment. (c) Desipn. All personel protective equipment shall be ot safe design and construction for the work to be per formed. <5> When limitations or precautions are indicated by the manufacturer, they shall be transmitted to the user and cere taken to see that such limitations and precautions are strictly observed. <6) Design, construction, testing, and use of device- for eye 2nd face protection shall be In accordance with American National Standard for Occupations! slid Educational Eye and Pace Protection, Z57.1-1966. 5 1910.134 Respiratory protection. (a) Permissible practice. (1) In the control of those occupational disease* caused by breathing air contaminated with harmful dusts, fogs, fumes, mists, gases, smokes, sprays, or vapors, the pri mary objective shall be to prevent at mospheric contamination. This shall be accomplished as far as feasible by ac cepted engineering control measures (for example, enclosure or confinement of the operation, general and local ventilation, and substitution of less toxic material:!). When effective engineering controls are not feasible, or while they are being in 1210.104 NFFA No. BSS-1SSS. Standard for tha in. staUatlon of Hulk Osygee Syatam* at Consumer 81tea 1210.102___..._____ NFPA No. 20-1222. nammabl* and Com bustible Liquids Co4#. 1210.107 NFPA No. 33-1209. | If 10.133 F.yr and fate protection. (a) General, (l) Protective eye and face equipment shall be required where there is a reasonable probability of in jury that can be prevented by such equip ment. In such cases, employers shall make conveniently available a type of protector suitable for the work to be stituted. appropriate respirators shall be used pursuant to the following require ments. (3) Respirators shall be provided by the employer when such equipment is necessary to protect the health of the employee. The employer shall prov-.de the respirators which are applicable and suitable for the purpose Intended. The Standard for Spray performed, and employees shall use such employer shall be responsible for the Finishing using Flam protectors. No unprotected person shall establishment end maintenance of a res 1*10.102------ NFPA mable and CombustlMe Material*. No. 24-1202, Standard for Dip Tank* CoOtsIblag flM&flMkbte ot Com* bustlbte Liquids. knowingly be subjected to a hasardoue environmental condition. Suitable eye protectors shall be provided where ma chines or operations present the hoard of flying objects, glare, liquids, injurious radiation, or a combination of the*# has piratory protective program which shall include the requirements outlined in paragraph (b) of this section. (3) The employee shall use the pro vided respiratory protection in accord ance with Instructions and training 1610.122.. .. NFPA Ho. 402-1*70, Oode for Manufac ture. Transportation, tenge and Use ot llxt|ploalTM and Hast- 1210.110................... MFFA 22-42, Standard tar the Handling of Uquifled Petroleum ClMB, 1210.111..................... ANSI KOI.1-1200, Stor age and Handling of Anhydrous Ammonia. 11910.110 Standards organisation*. National nro Protection Association (NFPA) 00 Hattorymareh Street. Boston, MA 02110.' National Plant Mod Institute. 1700 K Street MW., Washington, DC 20000. ards. 13) Protectors shall meet tha follow ing minimum requirements: (1) They shall provide adequate pro tection against the particular hasards for which they are designed. HI) They shall be reasonably comfort able when worn under the designated conditions. (Ill) They shall lit snugly and shall not unduly interfere with the movement* of the wearer. (lv) They shall be durable. (v) They shall be capable of being disinfected. <vl) They shall be easily doanable. received. (b> Requirements for a minimal ac ceptable propram. (1) Written standard operating procedures governing the se lection and use of respirators shall be established. (3) Respirators shall be selected on the basis of hasards to which the worker is exposed. (3) The user shall be Instructed and trained in the proper use of respirators and their limitations. (4) Where practicable, the respirators should be assigned to Individual workers for their exclusive use. (5) Respirators shall be regularly cleaned and disinfected. Those Issued for 92 nDIIAt ISOISTI*, VOL 37. NO. 202 WIDMISDAV, OCTOCSI 1*. 1*71 TEN 6331 222.12 RUleS AND REGULATIONS the exclusive use of one worker should be type compressor shall be used. Compres are used In atmospheres Immediately cleaned after each day'* use, or more sors shall be constructed and situated dangerous to life or health, standby men often If neceeeary. Thoee used by more so as to avoid entry of contaminated air must be present with suitable rescue than one worker thill be thoroughly into the system and suitable In-line air equipment. cleaned and disinfected after each use. > Respirators shall be stored In a convenient, clean, and sanitary location. 7) Respirators used routinely shall be inspected during cleaning. Worn or deteriorated parts shall be replaced. Res pirators for emergency use such as self- cor.uined devices shall be thoroughly Inspected at least once a month and after end-, use. ifti Appropriate surveillance of work area conditions and degree of employee exposure or atvess shall be maintained. <9> There shall be regular Inspection and evaluation to determine the con tinued effectiveness of the program. 1C i Persons should not be assigned to tasks requiring use of reeptrators un less It has been determined that they are physically able to perform the work and use the equipment. The local physician purifying sorbent beds and Altars In stilled to further assure breathing air quality. A receiver of sufficient capacity to enable the reaplrator wearer to eecape from a contaminated atmosphere in event of compressor failure, and alarm* to indicate compressor failure and over heating shall be Installed in the ayatem. If an oll-lubrtcated compressor is used. It shall have a hlgh-tempersture or car bon monoxide alarm, or both. If only a high-temperature alarm 1* used, the air from the compressor shall be frequently tested for carbon monoxide to Incur* that It meets the specifications In sub paragraph *l> of this paragraph. <3* Air line couplings shall be Incom patible with outlets for other gas sys tems to prevent inadvertent servicing of air line respirator* with nonresplrable gases or oxygen. (Ill) Peiaons using air line respirator* in atmospheres Immediately hazardous to life or health shall be equipped with safety harnesses and safety lines for lift ing or removing persons from hasardous atmospheres or other and equivalent provisions for the rescue of persons from hasardous atmospheres shall be used. A standby man or men with Suitable selfcontained breathing apparatus shall be at the nearest fresh sir base for emer gency rescue. (4> Respiratory protection Is no bet ter than the respirator In use, even though it Is worn conscientiously. Fre quent random Inspection* shall be con ducted by a qualified Individual to as sure that respirators are properly se lected, used, cleaned, and maintained. (5) For safe use of any respirator, it Is essential that the user be properly in shall determine what health and physical <4> Breathing gas containers shall be structed In its selection, use. and main conditions are pertinent. The reeplrator marked in accordance with American tenance. Both supervisors and workers user's medical status should be reviewed Nation*! Standard Method of Marking shall be so instructed by competent per periodically (for Instance, annually*. Portable Compressed oas Containers to sons. Training shall provide the men an 11* Approved or accepted respirators Identify the Material Contained. Z4I.1- opportunity to handle the respirator, shall be used when they are available. 1954: Federal Specification BB-A-1034*. have it fitted properly, test Its face-place- The respirator furnished shall provide June 21. 1949. Air. Compressed for to-face seal, wear It In normal air for adequate respiratory protection against Breathing Purposes; or Interim Federal a long familiarity period, and. finally, the particular hasard for which It Is Specification OQ-B-oo7&b. April 27. to wear it in a test atmosphsro. designed in accordance with standards 1945. Breathing Apparatus, Self-Con (1) Every respirator wearer shall re established by competent authortttee. The tained. ceive fitting Instructions Including dem V H. Department of Interior, Bureau of <e Vte of rupiratort, a* standard onstrations and practice In how the res Mines, and the VS. Department of Agri procedure* shall be developed for respi pirator should be worn, how to adjust It, culture are recognised as such authori rator use. These should include all infor and how to determine if It fits properly. ties. Although respirators listed by the mation and guidance necessary for their Reeplrator* shall not be worn when con S.y. Department of Agriculture continue proper selection, use, and care. Possible ditions prevent a good face seal. Such be acceptable for protection agalnet emergency end routine uses of respira conditions may be a growth of beard, specified pesticides, the UjB. Department tors should be anticipated and planned sideburns, a skull cap that projects under of the Interior. Bureau of Mines, is the for. the facepiece, or temple pieces on glasses. agency now responsible for teeUng and (2) The correct respirator shall be Also, the absence of one or both dentures approving pesticide respirators. specified for each job. The respirator can seriously affect the fit of a facepiece. <c* Selection of respirators. Proper type is usually specified in the work pro The worker's diligence In observing thee* selection of respirators shall be made ac cedure! by a qualified individual super- factors shall be evaluated by periodic cording to the guidance of American rising the respiratory protective program. check. To assure proper protection, the National Standard Practice* for Respira The Individual Issuing them shall be facepiece fit shall be checked by the tory Protection Z83.2-1949. adequately Instructed to Insure that the wearer each time he put* on the reaplra <d> dir Quality. <1) Compressed air. correct respirator is issued. Each respira tor. This may be done by following the compressed oxygen, liquid air. and liquid tor permanently assigned to an indi manufacturer** facepiece fitting instruc oxygen used for respiration shall be of vidual should be durably marked to in tions. high purity. Oxygen shall meet the re dicate to whom it was assigned. Tills (il) Providing respiratory protection quirements of the United States Pharma mark shall not affect the rsepirator per for individuals wearing corrective glasses copoeia for medical or breathing oxygon. formance in any way. The date of Issu is a serious problem. A proper seal cannot Breathing air shall meet at least the re ance should be recorded. be established if the temple bars of eye quirements of the specification for Orade (3) Written procedure* shall be pre glasses extend through the sealing edge D breathing air as described In Com pressed Oas Association Commodity Specification 0-7.1-1444. Compressed oxygen shall not be used in supplled-alr respirators or In open circuit self- pared covering safe use of respirators In dangerous atmospheres that might be encountered in normal operations or In emergencies. Personnel shell be familiar with these procedure* and the available of the full facepiece. As a temporary measure, glasses with short temple bars or without temple bars may be taped to the wearer's head. Wearing of contact lenses in contaminated atmospheres with contained breathing apparatus that have respirators. a respirator shall not be allowed. Sys previously used compressed air. Oxygen (1> In areas where the wearer, with tem* have been developed for mounting must never be used with air line failure of the respirator, could be over corrective lenses Inside full facepieces. respirators. come by a toxic or oxygen-deficient When a workman must wear corrective (?.) .v.-cathtng sir may be supplied to atmosphere, at least one additional man lenses as part of the facepiece, the faee- respirator* from cylinder* or air shall be present. Communications (visual, pleoe and lenses shall be fitted by quali compressors. voice, or signal Unci shall be maintained fied Individuals to provide good riaton. (i > Cylinders shall be tested and main between both or all Individuals present comfort, end a gas-tight seal. tained as prescribed In the Shipping Planning shall be such that on# individ (Ui> If corrective spectacles or goggles Container Specification Regulations of ual will be unaffected by any likely inci are required, they shall be worn so as the 'department of Transportation (49 C?:i Part (il> The compressor for supplying air shall be e-vuipped with necessary safety and stai'.dcy devices. A breathing alr- dent and have the proper rescue equip ment to be sblo to wrist the other!*) in case of emergency. (ID When self-contained breathing apparatus or hose maiks with blowers not to iffset the fit of the facepiece. Proper selection of equipment will mini mise or avoid this problem. (f) Maintenance and ear* of respira tors. (DA program for maintenance and 93 |>OIIAl liomlt. V L. 37, NO. JM--WtONttoAY, 0CT04M II, 1473 TEN 6332 1 ULIS AND RCGUIATIONS 22233 care of respirator* shall be adjusted to the type of plant, working conditions, and hazards involved, and shall Include the following basic service*: <t> Inspection for defects (including a leak check), (11) Cleaning and disinfecting. (ill) Repair, <lv) storage Equipment shall be properly maintained to retain Its original effectiveness. iai if) All respirators shall be In* apected routinely before and after each use. A respirator that Is not routinely used but is kept ready lor emergency use shall be inspected after each use and at least monthly to assure that It is in satisfactory working condition. Ml) Self-contained bre*tiring appara tus shall be Inspected monthly. Air and oxygen cylinders shall be fully charged according to the manufacturer s instruc tions. it shall be determined that the regulator and warning devices function properly. Mil) Respirator Inspection shall in clude a check of the tightness of con nections and the condition of the facepiece. headbands, valves, connecting tube, and canisters. Rubber or elastomer parts shall be Inspected for pliability and signs of deterioration. Stretching and manipulating rubber or elastomer parts with a massaging action will keep them pliable and flexible and prevent them from taking a set during storage. (lv) A record shall be kept of inspec tion dates and findings for respirators maintained for emergency use. (3) Routinely used respirators shall be collected, cleaned, and disinfected as frequently as necessary to Insure that proper protection la provided for the wearer. Each worker should be briefed on the cleaning procedure and be assured used respirators, such ss dust respira label: "For respiratory protection in nt- tors, may be placed In plastic bags. Res mospheres containing not more than pirators should not be stored In such places as lockers or tool boxes unless percent by volume of.....................h........... they are In carrying cases or cartons. (Name of atmospheric contaminant Ml) Respirators should be packed or Mil) All of the markings specified sbove stored so that the facepiece and exhala should be placed on the most conspicuous tion valve will rest In a normal poalUon surface or surfaces of the canister. and function will not be Impaired by (4) Canister* having a special hlgh- the elastomer setting In an abnormal efflciency filter for protection against position. radionuclides and other highly toxic par MID instructions for proper storage ticulates shall be labeled with a state of emergency respirators, such as gas ment of the type and degree of protec masks and self-contained breathing tion afforded by the filter. The label apparatus, are found in "use and care" shall be affixed to the neck end ot. ov to instructions usually mounted Inside the the gray stripe which Is around and near carrying case lid. the top of, the canister. The degree or <g) identification ol gas matk canis protection shall be marked a* the per ters. (l) The primary means of Identify cent of penetration of the canister by ing a gas mask canister shall be by means a 0.3-mlcron-diameter dioctyl phthalnie of properly worded labels. The secondary iDOP) smoke at a flow rate of 85 liters means of Identifying a gat mask canister per minute. shall be by a color code. <5) Each canister shill have a label (3) Ail who issue or use gas masks fall ing within the scope of this section shall see that all gaa mask canisters purchased or used by them are properly labeled and colored in accordance with these require ments before they are placed In service and that the labela and colon are prop erly maintained at *11 times thereafter until the canisters have completely served their purpose. (3) on each canister shall appear In bold letten the following: <0-- Canister for.......................................................... (Nam* for atmospheric oontaminant) or Type N Oas Mask Canister Ml) In addttlon, essentially the fol lowing wording shall appear beneath the wanting that gaa masks should be u-ei only in atmospheres containing suffi cient oxygen to support life *at least 16 percent by volume), since gas mask canisters are only designed to neutralize or remove contamlnsnts from the air. (g) Each gas mask canister .'hall be painted a distinctive color or combina tion of colors indicated In Table I-i. All colors used shall be such that they are clearly identifiable by the user and clearly dlatlngulahable from one another The color coating used shall offer a high degree of rcelstance to chipping, scaling, peeling, blistering, fading, and the effects of the ordinary atmospheres to which they may be exposed under norma] con ditions of storage and use. Appropri ately colored pressure sensitive tape appropriate phrase on the canister may be used for the stripes. Test* 1-1 that he will always receive a clean and disinfected respirator. Such assurances are of greatest significance when respira tors are not Individually assigned to workers. Respirators maintained for emergency use shall be cleaned and dis infected after each use. (4) Replacement ot repairs shall be done only by experienced persons with parts designed for the respirator. Mo attempt shall be made to replace com ponents or to make adjustment or re pairs beyond the manufacturer's rscommendstlons. Reducing or admission valve* or regulators shall be returned to the manufacturer or to a trained Atmospheric emMalMsti to N protected sfefnet Acid cues--------- -------------- ----------------------Hydrocyanic acid gas.......................................... Chlorine gas......................................................... Organic vapors............................. ............... .. Ammonia jm..................................... ............... Add gases and ammonia gas--------- --------------- Carbon monoxide.................................. ...-----Add gases and organic vapor*...................... .. Hydrocyanic aetd gas and chloropkrln vapor. Add gases. organic vapors, and ammonia Colors err(yard* White. Whit* with tt-meh green strip* completely around the canister neer the bottom. Whit* with H-lneh yellow strip* completely around the canister near the bottom. Blast. Oreen. Oreen with 14-lneh white stripe completely around the canister near the bottom. Blue. Yellow. Yellow with tt-lnch blue strip* completely round the canister near the bottom. Brown, technician for adjustment or repair. (5) <i> After inspection, cleaning, Bodtoactm materials, excepting tritium and Furplo (Magenta). and necessary repair, respirators shall be stored to protect against dust, sun light, heat, extreme cold, excessive moisture, or damaging chemicals. Res pirators placed at stations and work Particulates (dutte. fumes, mists, fogs, or make*) in combination with any of the above fasts or vapors. All ot the above atmospheric contaminants.. Canister ootor for contaminant, as dtslgnsted oboes, with Vi-lnob pay strip* completely round the canister near the top Bed with )4-Inch gray strip* completely around the canister near the top. areas for emergency use should be Orsy ahall not be asalgned is the main color tor s canister designed to remove scidt or quickly accessible at all times and vapor*. should be stored in compartments built Nora: Orange shall ho used as a complete body, or strip* ooior to represent gate* not for the purpose. The compartment* Included m this table. The user will need to refer to the canister label to determine the should be clearly marked. Routinely degree of proteetiou the canister will afford. 4 94 HDftAL tMttm, VOL 37. NO. Mt--WlONtSBAY. OCTOMt 14. 1471 TEN 6333 APPENDIX B 30 CFR PART 11 SATURDAY, MARCH 25, 1972 WASHINGTON, D.C. VohiitM 37 Numbw 59 PART II DEPARTMENT OF THE INTERIOR Bureau of Mines Respiratory Protective Devices; Tests for Permissibility; Fees C 96 PEN 6335 6244 RULES AND REGULATIONS Title 30--MINERAL RESOURCES 0 Chapter I---fifjraiiu t Mine*, Department >7 the Interior SUBCHAPTM B--SSSriMTOtT PROTfCTIVC APPARATUS; TESTS FOR PCRMISSIRIUTY, FEES PART 11--RESPIRATORY PROTEC TIVE DEVICES; TESTS FOR PER MISSIBILITY; FEES PART 12--SUPPtlED-AIR RESPIRATORS PART 13--GAS MASKS PART 14--FILTER-TYPE DUST, FUME, AND MIST RESPIRATORS PART 14a.--NONEMERGENCY GAS RESPIRATORS (CHEMICAL CAR TRIDGE RESPIRATORS, INCLUDING PAINT SPRAY RESPIRATORS) Pursuant to the authority vested in the Secretary of the interior under 38 8tat. 399, as amended 31 Stat. 881 (30 UG.C. 3, 5. and 7), and the authority vested In the Secretary of the Interior and the Secretary of Health, Education, and Welfare under sections 202(h), 204, and 508 of the Federal Coal Mine Health and Safety Act of 1999 (30 tJ.S.C. 842(h), 844, and 957), there was published in the Fxdiral Rigists* for March 10, 1971 (38 F.R. 4852) a notice of proposed rule making wherein It was proposed to revoke Parts 11, 12, 13, 14, and 14a of Subchap- Jer B, Chapter I. Title 30, Code of Federal Regulations (Bureau of Mines Schedules H3E, 14F, 19B. 21B, and 23B), and to sub stitute therefor a new Part 11, prescribing the approval procedures, establishing the fees, and consolidating and extending the requirements for obtaining joint approval of respirators by the Bureau of Mines, Department of the Interior and the Na tional Institute for Occupational Safety and Health, Department of Health, Edu cation, and Welfare. Interested persons were afforded a period of 45 days from the date of pub lication of the notice within which to submit written comments, suggestions, or objections to the proposed amendments. Approximately 15 associations, com panies, labor organizations. Individuals, and State and Federal agencies sub mitted comments, suggestions, or objec tions. In addition Interested parties in formally conferred with officials of the Department of the Interior and the De partment of Health, Education, and Wel fare in March, April. October, and No vember 1971 In order to discuss the pro posed amendments. Some of the regulations have been revised as suggested; In other instances revisions have been made In view of the comments received. The proposed regulations specified that protection factors for certain types of respirators would be determined by the Bureau during the course of testing. ^^lUi sgugggeessttlion was received that protection a^Ac' tcotorros Nbe determined for all types of ^respiratoorn. After thorough considera " utiown o-4f tthl is issue, the Bureau and the Institute have decided that although the concept of protection factors to valid, present technology In this area la In sufficient to produce reliable data upon which to base such factors. Therefore, references to protection factors have been deleted from the regulations, with a view toward working to Improve relevant technology and data In order to Incorpo rate requirement)) for protection factors Into Part 11 at a later date. Other significant technical revisions are: (1) Performance requirements have replaced certain design specifications; and (2) tests have been Included for powered air-purlfylng respirators. Certain procedural revisions have aim* been made. The arrangement and num bering system of the proposed amend ments has been totally redesignated so as to place all procedural requirements at the beginning of Part 11 (Subparts A through F), followed by all requirements (Subparts Q through Ml. Expanded and more stringent quality control requirements have been estab lished (Subpnrt E). Examples of causes which may result In revocation of the certificate of approval have been speci fied. The time limit for phasing out respirators approved under revoked Parts 11, 12. 13, 14. and 14a of this Title 30 has been clarified (see ! 11.2). A suggestion was received that models submitted for testing and approval be made only on regular production tooling with no operations Included which would not be Incorporated In regular produc tion processing In order to Insure that commercially produced respirators would be identical in all respects to those tested and approved under these regulations. This suggestion was carefully considered. However, it was determined, by the Bu reau and the Institute that such a re quirement might well operate to obstruct advances in respirator technology, since substantial Investment would be neces sary to build production models with no adequate assurance of ultimate approval. Consequently It was decided to continue the testing of soundly designed and con structed prototype models; however, upon completion of such testing the Bu reau and the Institute may require the applicant to resubmit a production model for additional testing prior to issuance of a certificate of approval (see 1111,11 (e) and 11.30). Subchapter B of Chapter I, Title 30, Code of Federal Regulations, amended by revoking Paris 11, 12, 13, 14, and 14a, and substituting therefor a new Part 11-- Respiratory Protective Devices; Tests for Permissibility; Fees, as set forth below Is herewith promulgated and shall become effective 60 days following publication In the Fkdrral Rzgisttx. W. T. Pxcoas, Acting Secretary of the Interior. Febkuakt 17, 1972. Elliot L. Richaxdson, Secretary ol Health, Education, and Welfare, March 10. 1972. See. 114 112 114-1 14 I. 4 Mvl A--General Frevltlent Purpose. Approved respirators. Selection, fit, uee, end mainte nance of approved recplretore. Definition*. Incorporation by referenoe. Sohpert B--Application for Approval II. 10 11.11 11.13 Application procedures, Contents of application. Delivery of respirator* by appli cant; requirements. 1140 1141 1143 Subpart C--Feet Examination, inspection, and testing of complete reapIrator eoaembllea; feee. nomination, inspection, and testing of respirator compo nent* or subaaoembllea; feet, Unlisted feee; additional feee; payment by applicant prior to approval. Setport P--Approval and Disapproval 1140 1141 1143 1143 1144 1146 1146 Oertiflcatea of approval; scope of approval. Certificates of spproval; contents. Notice of disapproval. Approval labels and markings; ap prove! of contents; use. Revocation of certificates of ap proval. Changes or modifications of ap proved reapIraton; issuance of modification of certificate of approval. Delivery of changed or modified approved respirator. 11.40 11.41 11.43 11.49 Subpart E--Quality Central quality control plane; filing requirements. Quality oontrol plans; contents. Proposed quality oontrol plane; aproval by the Bureau and the institute. Quality control records: review by the Bureau and the Institute; revocation of approval. Swbpert F--ClewlOcatien of Approved letpJtereal Seepe ef Approval; Atmotpltorte Haterdt; Service Time 1140 1141 Types of respirator* to be ap proved: eoope of approval. Xntry and escape, or escape only; 11JB 11Jg Respiratory haaards; claetlfioatlon. Barries time; claeelItcation. fubpdii O General Cemtiwctloa ml Perfennance Reauirementl 1140 Construction end performance re 1141 quirements; general. Oeneral construction require ments. 1149 Component parts; minimum re quirements. 1146 Teat requirements; general. 1146 Pretesting by applicant; approval at test methods by the Bureau. 1149 Oonduet of examinations, inepee- tione. end testa by the Bureau and the Institute; eaeletanne by qppUeant: observers; recorded data; pubUc demonoWartone. 1149 Withdrawal of applications; re fund eg feee. FfDfRAt MOIST!*, VOL 37, NO. S9--SATURDAY, MARCH J5, 1*73 LJ2JN OJJO 97 v A 1A RULES AND REGULATIONS 6245 ishssrt K-MKmHM lrarthln* Apperetu* Irq, 1146 8t0a Breathing tub**; minimum -te- 11.194- 6 Breathing tub* tart: minimum 11.19 11.71 11.71 11.71 11.79 11.71 11.71 11.77 11.71 11.71 11.71-1 11B0 HJK. 1141 lltt 1144 1141 1141-1 U4M 1149-4 1141-4 1141-9 1149-9 1141-7 1144-4 1149-9 1149-19 1141-11 1149-11 1141-11 114144 1149-14 1141-14 1141-17 1148-19 1149-1# g*Ifcontained breathing appara tus; description. Pelf-contained breathing appara tus; required components. Breathing tubas; mlntmum re quirement*. Harnaaaaa; Installation and con struction; minimum requWementa. Apparatus oontalnere; mlntmum requirement*. Half-maak faoepleow, full faoeplaoaa. mouthpleoes; fit; mini mum requirements. Paoepleoee; eyepleoea; minimum requlrarnenta. Inhalation and exhalation velvaa; minimum requlrarnenta. Weed, harnaaeaa; minimum re quirements. Breathing _ gee; minimum re quirements. Interchangeability of oxygen and air prohibited. gM Md UquaAed breathing gas oootalnare; minimum require- Oaa premure gages; minimum re quirements. Timara; slapeed time indloators; remaining aarvio* Ufa tndloatora; minimiTM raqulremants. Hand-operatad valves; minimum requlremanta. Breathing begs; minimum re quirements. Silf-eontalned breathing appara tus; parformano* requlrsmenta; general. Component parts exposed to oxy gen pressures; minimum re quirement. Oompraased gee flltare; minimum requirements. Biearthing beg teat Weight requirement. Breathing resistance tart: Inhala tion. Breathing resUtano* test; athala- tlon. Bihalatlon valve laakags test. Oea flow test; open-oircutt sp- paratu*. Gas flow teat; oloesd-otrcult ap- flervio* urns tart; open-obuutt apparatus. Barvio* time teat; sloes 1-MrouH apparatus. Tart for carbon dlmdd* In in spired gee; open- and doseddrcult apparatus; maximum allowable limits. Arts during low temperature op- Man tests; tasting conditions; gansral requirements. Man testa 1, 3. t, an*4; require- Man tart 9; requlrsmenta. Man tart d; requirements. Man taata; parformano* require ment*. Oaa tightness test; minimum re qulremanta. quiremanta. requirement*. U.M Hiiriaeaaet installstlnn and aosi- 11.199-10 Airflow resistance test. Type a struotlon;' raqulie- and Type AX auppllad-alr res mtnU. pirators; minimum require 11.97 Om milk oontalnsra; minimum ments. requirement*. 11.194- 11 Airflow naletanoa teat; Type B 11.96 Helf-m**k faoaplaoaa, full (**- and Type BX suppllad-alr res plaoaa. and mouthpiece*; fit; minimum requirement*. pirator*; minimum require ment*. UN Paoeplaoaa; ayaplaoee; minimum 11.194- 19 Airflow resistance teat; Type- C requirement*. suppllad-alr raaptrator, con 11.100 Inhalationand exhalation valve*; tinuous flow olaas and Type minimum requirements. C* ruppUed-alr respirator; 11.101 Head harneaaea; minimum re- minimum requirement*. qulrament*. 11.194- 19 Airflow resUtano* teat; Type 0 11,103 Oa* maaka; performance requlramanta; general. auppUad-alr rasplrator, dsmand olaas; minimum tequlrsmanta 11.109-1 Breathing resistance tact; mini 11.194- 14 Airflow raalstano* test; Type C mum reuuir*manta. auppllad-alr rasplrator, pres- 11.109- 1 exhalation vale* leakage tart. tur*-demand claaa; minimum 11.109- 4 Paoepleoe tcata; minimum re requlremanta quirements. 11.194- 19 Kxhalatlan r*lr* laakags teat 11.109- 4 Duct, fume, mist, and smoke 11.194- 16 Man tarts for gaas* and vapor* taata; canister* mmtaimwg Oi Uppllad-atr rssplrators; gsn- tari; minimum requirements. srai performance requlremanta 11.103-6 Canlatar bench taata; minimum 11.194- 17 Man testa far gs*** and vapors; requirement*. Type A and Type AX respira Snh|Mrt J--Suppllad-AIr (atplralan tor*; test raqulremants. 11.194- 19 Man taata for gaaaa and vapors; 11.110 BuppU*d-*ir reaplraton; daeorlp- Typ* B and Typ* BX Tssplra- tlotl. tors; tsst rsqulrsmanu. 11.111 Suppllad-alr respirators; required 11.194- 16 Man test tot gaas* and vapors; component*. Typ* C rasplrator*. continuous- 11.113 Breathing tubes; minimnm re- flow etaaa and Typ* OX aup- quiremanta. pUsd-alr rssptraton; test re 11.119 Harmam; lnatallatlon and eon- quirement*. atructlon; minimum require- 11.134- 30 Man teas tor gas** and vapors; 11.114 menu. ReapIrator container*; minimum Typ* 0 ruppUsd-air rssplrators, demand and pressura-damand rtqulrttQABtB. nlsaasa; tart requirement* 11.116 Half-maak faoaplaoaa, full face- 11.134- 31 Taste for protection during abra plaoa*. hood*. and halmata; lit; de* blasting; typ* Az, Typ* BX. 11.116 minimum requiremanta. Faoaplaoa*. booda, and balmata; and Typ* CX suppllad-alr respi rators; gansral parformano* re yaplaoes; , minimum, require quirement*. ment* 11.194- 29 Teat for protection during abra 11.117 11.116 11.119 11.190 11.131 Inhalation and exhalation valves; check Taleea; minimum require ment* Baad hameeeea; minimum re. qulrement*. Bead and neck protection; *up* plied-air reaplr*tore; minimum requirement*. Air velocity and Doles levels; hoods and halmata; minimum requlrarnenta. Breathing gas; minimum raqulie- 11.194- 31 11.134- 94 sive hisating; Typ* AM sup plied-air respirator; tart re quirement*. Tart for'protection during abra sive blasting; Typ* BX sup plied-air rasplrator. test re quirement*. Tsst for protection during abra sive blasting; Type OB sup plied-air respirator tart re quirement*. manta Sehpart I Beit, Naas. and Mlai Istplrsfsts 11.191 Ah- supply aouroa; hand-operated 11.190 or motor driven air blowers; Trp* A auppUad-alr respirators; thiwtiwiiw rvqulr*mntB. 11.191 llitt 11.194 Terminal fittings or ohambers; Type B auppUcd-atr reapIratore; minimum requirements. SuppUed-alr resplratore; patform- 11.191 lljtt ano* raqulremants; general. 11.199-1 Band-operatad blower tact; minimum r*quirwmnta. 11.194 11.194- 3 Motor-operated blower test; minImttm rMUlMfflintl. 11.199 11.194- 9 Method of measuring the power and torque required to operate blowers. 11.199 11.194- 4 Type B auppUed-alr respirator; minimum requirements. Dust, fume, and mist respirators; description. Dust, Rune and mist respirators; required oomponant*. Breathing tub**; qulrsmanta. ft* Harnesses: lnatallatlon and con(traction; minimum require ment*. Basplrmter containers; minimum requirements. Half-maak faocplsoa*. full fees- plaoaa, hoods, halmata. and mouthptaoas; fit; minimum requlremanta. Xaoaplaoas. hoods, and helmet*: sysplao**; minimum require ment*. Sabpevt L Oea Manfct 11.194- 9 Type C auppllad-alr rasplrator. 11.197 Inhalation and exhalation vaivsa; 1140 1141 Oaa macks; description. Oaa macks: required oomponant*. continuous flow claaa; mini mum requlrarnenta. 11.1M minimum requirements. Baad hernrases; minimum re 1149 Canister* and cartrtdgaa in paral 11.194- 6 Type C euppllod-alr respirator. qulremanta. lel; raalstano* requlremanta. demand and pressure demand 11.199 Air velocity and note* levels: 1149 ' Canister* and oartrtdgas; color olaas; minimum requlremanta. hoods and hairnets; minimum and markings; requirements. 11.194- 7 Alr-aupply Una tarts; minimum requirements. 1149 filter* used with oaalsMm and requirements. 11.140 Duct. fums. add mist respirators; cartiidgae; location; replace- 11.194- 9 Baraev* teat; minimum require performance requirements; 98 mans ment*. general. notiAi laoitTM, VOL %f, no. Jt--iatuidav, makm jj, imfEN 6337 624* RULES AND REGULATIONS 11.140-1 Isoamyl acetate tightness test; duet, fun, and ml*t reeplraton dl|Md for reepiratcry protection against fume* of Sec. 11.161 11.183-1 Chemical cartridge reapIreton; performance requirement*; gen eral. Breathing resistance test; mini and the National Institute for Occupa tional Safety and Health of respirator* or changes or modifications of approved reeplrators; (b) to establish a schedule varlou* motel* having on air mum requirements. of fete to be charged each applicant for contamination 1t1 not 1m 11.183- 1 Exhalation valve leakage test; the Inspections, examinations, and test 11.140-a than 0.08 milligram par cubic meter; minimum requirement*. lo*myl acetate ttghtneee teat: respirators designed for respira tory protection against dtute, fumed, and mists baying an air contamination laral leu than minimum requirements. ing conducted by the Bureau under the 11.183- 8 11.183- 4 Feceplece test; minimum require ments. Lacquer and enamel mist tests; respirators with filters; mini mum requirements; general. provisions of this part; (c) to provide for the issuance of certificate* of approval or modifications of certificates of approval for respirators which have met the ap 11.183- 6 Lacquer mist test; minimum re plicable construction, performance, and 0.08 milligram par cubic mater, quirements. respiratory protection requirements set 11.140-8 11.140-4 or against radionuclides; mini mum requirements. Air-purifying filter tests; per formance requirements; gen eral. Silica dust test; single-use or re usable filters; minimum re quirements. 11.183- 8 Enamel mist test; minimum re quirements. 11.183- 7 Dust, fume, and mist teste; res pirator* With filter*; minimum requiremenu; general. 11.183- 8 Bench t*eta; gas and vapor tecta; minimum requirements; gen eral. forth in this part; and (d> to specify minimum requirements and to prescribe methods to be employed by the Bureau and by the applicant in conducting in spections, examinations, and teats to determine the effectiveness of respirators used during entry into or escape from 11.140-6 11.1404 11.140-7 11.140-8 Silica duet test; single-uee dust reeplrators; minimum require ments. Lead fume teat, minimum re quirements. SUlca mist test; minimum re quirements. Tests fee respirators designed for respiratory protection against mors their one type of dlsper- Swbpsrt M--Nrtidde Respirator* 11.170 11.171 11.173 11.178 11.174 Pesticide respirators; description. Pesticide respirators; required components. Canister* amt cartridges In paral lel; resist*no* requirement*. Canisters and cartridges; color and markings; requirements. Filter* used with canisters and hazardous atmospheres. 8 11.2 Approved respirator*. <a) Until March 30,1974, respirator* or combinations of respirator* shall be considered to be approved few use during entry into hazardous mine atmospheres, escape from - hazardous mine atmos pheres, or both, where such respirators sold; minimum requirements. cartridge*; location; replace or combination* of respirators are: (1) 11.140-0 Airflow resistance tests; all dust, ment. The same in all respects as those respi 11.140- 10 11.140- 11 fume, and mist respirators; 11.178 minimum requirements. exhalation tsIts leakage test; 11.176 minimum requirements. DOF filter test; respirator* de signed as respiratory protection 11.177 against dusts, fumes, and mists having an air contamination 11.178 Breathing tubes; minimum re quirements. Harnea#**; installation and con struction; minimum require ments. Respirator containers; minimum requirements. Half-mask faospieoes, full face rators which have been approved after meeting the minimum requirements for performance and respiratory protection set forth In this Part .11; or (3) fabri cated, assembled, or built under any approval, or any modification thereof, issued by the U.8. Bureau of Mines, De 11.140-11 level lees than 0.06 milligram per cubic meter and against radionuclides; minimum requim&tata. Silica dust loading test; rsaplratore designed as protection against dusts, rumee, and mists baring an air contamination level lees than 0.06 milligram per cubic meter and against radionuclides; minimum re 11.170 11.100 11.181 11.183 pieces, hoods and helmets, and mouthpieces; fit; minimum re quirements. Facepieces, hoods and helmets; eyepleoM; minimum require ments. Inhalation and exhalation valves; minimum requirement*. Head hsmeeeea; minimum re- quirtBM&tt. Air velocity and noise levels; partment of the Interior, in accordance with the schedules set forth below; end (3) maintained In an approved condi tion: (I) Self-contained Breathing Appa ratus, Bureau of Mines Schedules 13. March S, 1919; ISA, January 31, 1930; 13B, August 13, 1930; ISC. July 9. 1946; 13D, September 33, 1956; and 13E. July 19, 1968. quirements. Sebpsrt t--Chemkol Cartridge Respirators 11.100 11.161 11.169 Chemical cartridge respirator*; description. Chemical cartridge respirator*; required component*. Cartridge* in parallel; resistance requirement*. hOOda and pelmets; minimum requirements. 11.188 Pesticide respiratorsr -performance requirement*; general. 11.188- 1 Breathing resistance test: mini mum requirements. 11.188- 8 Exhalation valve leakage teat; minimum requirements. 11.188-8 Faoepleo* teat; minimum require- (II) Gas Masks, Bureau of Mines Schedule 14F, April 33. 1905. (ill) Supplied-alr Respirator*, Bureau. Of Mins* Schedule 19B. April 19, I960. (lr> Filter-type Dust, Fume, and Mist Respirator*. Bureau of Mines Schedule 31B, January 19, 1968, (v) Nonsmergency Gas Respirators, 11.160 11.104 11.180 11.180 Oartndgss; odor and markings; requirements. Filters used with chemical cart ridges: location; replacement. Breathing tubes; minimum re quirements. Harnesses; Installation and con struction; minimum requtre- mente. 11.188- 4 11.183- 6 11.188- 8 11.183- 7 Sllloa duet teat; minimum re Bureau of Mines Schedule 33B, August 4, quirements. Load fume teat; quirements. minimum 1999 re <b> After March 30, 1974, respirator* or combinations of respirator* shall be Dloctyl-phthelate requirements. teat; minimum considered to be approved for use during entry Into hazardous mine atmospheres, Bench teste; ments. minimum require escape from hazardous mine atmos pheres, or both, only where such respi 11.167 11.160 11.160-1 Respirator container*; minimum requirements. Half-mask facepieces, full facepieces. mouthpieces, hoods, and helmeta; fit; minimum require ments. Facepieces, hoods, and helmets: eyepieces; minimum require Acraoarrv. The provision* at this Fart 11 iMusd under sections 303(h). 304, and 600 ot the Federal Coal Min* Health and Safety Act ct 1088 (80 U.B.C 843(h), 844, and 067) and 86 Btak. 800, ** amended 87 Btat. 881 (80 VJB.C. 8,6. and 7). Subpart A--Genarol Provisions rator* or combinations of such respira tor* are: (1) The same in all respects as those respirator* which have been ap proved after meeting the minimum re quirements for performance and respira tory protection prescribed in this Part 11; and (3) maintained in an approved 11.160 11.100 ments. Inhalation and exhalation valves; minimum requirements. Head hernewes; minimum re quirements. 11.1 Purpose. The puipoee of the regulations con tained in this Part 11 U: (a) To establish procedures and prescribe requirements condition. 8 11.2-1 Selection, fit, ate, and mainte nance of approved respirator*. In order to Insure the maximum 11.101 Air velocity and noise levels; hood* and helmets; minimum requirements. which must be met In filing application* for Joint approval by the Bureau of Mines amount of respiratory protection, ap proved respirator* shall be selected. 99 fVMRAl RWISTIR, VOL 37, NO. 50--SATUROAY, MARCH JS, 1073 rEN 6338 \ RULES AND RE ULATIONS 6247 fitted, used, and maintained In accord* ance with the provisions of the American National Standard Practice for Respir atory protection, Z88.2, obtainable from American National Standards Institute, (n) A "facepiece" or "mouthpiece" Is a respirator component designed to pro vide a gas-tight or dust-tight fit with the face and may Include headbands, valves, and connections for canisters, cartridges, Insect, rodent, nematode, fungus, weed, or other form of plant or animal life or virus, and (2) any substance or mixture of substances (including solvents and Impurities) Intended for use as a plant Inc,, 1430 Broadway, New York, NY 10018. S 11.3 Definitions. filters, or respirable gas source. (o) "Final Inspection" means that ac tivity carried out on a product after all manufacturing and assembly operations regulator, defoliant, or desiccant, as de fined In the Federal insecticide, Fungi cide, and Rodentlclde Act of 1947, as amended (7 U.S.C. 135-13Sk), excluding As used In this pert-- ^are completed to Insure completeness and (a) "Air Contamination level" means 'adherence to performance or other speci the standards of contaminant levels pre fications, including satisfactory appear scribed by the Secretary of Labor In ac ance. cordance with the provisions of the Occu (p) "Fume" means a solid condensa pational Safety and Health Act of 1970 tion particle, generally less than 1 mi (Public Law 91-598; 84 Stat. 1590). crometer in diameter. (b) "Applicant" means an Individual, (q) "Gas" means an aeriform fluid partnership, company, corporation, asso which Is In a gaseous state at ordinary ciation, or other organization that de temperature and pressure. signs, manufactures, assembles, or con (r) "Hazardous atmosphere" means: trols the assembly of a respirator and <1> Any atmosphere containing a toxic who seeks to obtain a certificate of ap or disease producing gas, vapor, dust, proval for such respirator. fume, mist, or pesticide, either Immedi (c) "Approval" means a certificate or ately or not immediately dangerous to fumigants which are applied as gases or vapors or In a solid or liquid form as pellets or poured liquids for subsequent release as gases or vapors. (cc) "Powered air-purifying respira tor" means a device equipped with a facepiece, hood, or helmet, breathing tube, canister, cartridge, filter, canister with filter, or cartridge with filter, and -a blower. (dd) "Radionuclide" means an atom Identified by the constitution of Its nu cleus (specified by the number of pro tons Z, number of neutrons N, and en ergy. or, alternatively, by the atomic formal document Issued by the Bureau life or health; or (2) any oxygen-defi number Z, mass number A=(N-t-Z), and and the Institute stating that an Individ cient atmosphere. atomic mass) which exists for a measur ual respirator or combination of respi <s) A "hood" or "helmet" Is a respira able time; decays or disintegrates spon rators has met the minimum require tor component which covers the wearer's taneously, emits radiation, and results In ments of this Part 11, and that the appli head and neck, or head, neck, and the formation of new nuclides. cant Is authorized to use and attach an shoulders, and Is supplied with Incoming (ee) "Respirable dust" means a dust approval label to any respirator, respira respirable air for the wearer to breathe. particle aerodynamtcally capable of tor container, or instruction card for any It may include a headharness and con reaching the terminal airways of the respirator manufactured or assembled nection for a breathing tube. lung. In conformance with the plans and spec (t) "Immediately dangerous to life or (ff) "Respirator" means any device ifications upon which the approval was health" means conditions that pose an designed to provide the wearer with based, as evidence of such approval. immediate threat to life or health or con respiratory protection against Inhala (d) "Approved" means conforming to ditions that pose an Immediate threat of tion of a hazardous atmosphere. the minimum requirements of this severe exposure to contaminants, such (gg) "Smoke" means the products of Part 11. as radioactive materials, which are likely Incomplete combustion of organic sub (e) "Auxiliary equipment" means a to have adverse cumulative or delayed stances in the form of solid and liquid self-contained breathing apparatus, the effects on health. particles and gaseous products In air. use of which Is limited In underground (u) "Incoming inspection" means the usually of sufficient concentration to per mine rescue and recovery operations to activity of receiving, examining, and ac ceptibility obscure vision. situations where the wearer has ready cepting only those materials and parts (hh) "Vapor" means the gaseous state access to fresh air and at least one crew whose quality conforms to specification of a substance that Is solid or liquid at equipped with appioved self-contained requirements. ordinary temperature and pressure. breathing apparatus of 2 hours or longer rating. Is In reserve at a fresh-air base. (f) "Bureau" means the U.S. Bureau of Mines, Department of the Interior. (g> "Compressed breathing gas" means oxygen or air stored In a com pressed state and supplied to the wearer In gaseous form. (h) "Concentration limits for radio nuclides" means the concentration limits set forth In Appendix B, Table 1, Column I of Title 10 CFR Part 20. by the Atomic Energy Commission. (1) "dBA" means sound pressure levels In decibels, as measured with the A- welghted network of a standard sound level meter using slow response. (j) "DOP" means a homogenous liquid (v) "In-process Inspection" means the control of products at the source of pro duction and at each step of the manu facturing process, so that departures from specifications can be corrected be fore defective components or materials are assembled into the finished product. (w) "Institute" means the National Institute for Occupational Safety and Health, Department of Health, Educa tion, and Welfare. (x) "Liquefied breathing gas" means oxygen or air stored In liquid form and supplied to the wearer In a gaseous form. (y) "Mist" means a liquid condensa tion particle with a size ranging from submlcroscoplc to macroscopic. (z) "Not Immediately dangerous to life $ 11.4 Incorporation by reference. In accordance with 5 UB.C. 552(a) (l), the technical publications to which reference Is made In this Part 11, and which have been prepared by organiza tions other than the Bureau of Mines, are hereby Incorporated by reference and made a part hereof. The Incorporated technical publications are available fot examination at Approval and Testing, Health and Safety Technical Support Center, Bureau of Mines, 4800 Forbes Avenue, Pittsburgh. Pa. In addition, copies of the American National Stand ard Practices for Respiratory Protection, Z88.2, are available for examination In every Coal Mine Health and Safety Dis aerosol, having a particle diameter of or health" means any hazardous atmos trict and Subdistrict Office. 0.3 micrometer, which Is generated by vaporization and condensation of dloctyl phere which may produce physical dis comfort immediately, chronic poisoning Subpart B--Application-for Approval phth&late. after repeated exposure, or acute adverse 11.10 Application procedures. (k> "Dust" means a solid mechanically produced particle with a size ranging from submlcroscoplc to macroscopic. (1) Respirators "for entry Into and escape from" means respiratory devices providing protection during entry Into and escape from hazardous atmospheres. <m) Respirators "for escape only" means respiratory devices providing pro tection only during escape from hazard ous atmospheres. physiological symptoms after prolonged exposure. <aa) "Oxygen deficient atmosphere" means an atmosphere which contains an oxygen partial pressure of less than 148 millimeters of mercury < 19 5 percent by volume at sea level). (bb) "Pesticide" means (l) any sub stance or mixture of substances (Includ ing solvents and impurities) Intended to prevent, destroy, repel, or mitigate any (a) Inspection, examination, and test ing leading to the approval of the types of respirators classified in Subpart F of this part shall be undertaken by the Bu reau only pursuant to written applica tions which meet the minimum require ments set forth In this Subpart B. (b) Applications shall be submitted to Approval and Testing. Bureau of Mines, 4800 Forbes Avenue, Pittsburgh, PA 100 HDIIAl R| ism, VOL 37, NO. SV--SATURDAY, MARCH J5, 197Z rEN 633y 6248 RULES AND REGULATIONS 15213, And shall be Accompanied bj a ten request within 30 days after notice respirator assemblies which are not listed UchUDeGck, bank draft, ocr money order in the of approval. If no such request Is made, In 111.30, or for the examination. In .ount specified In Subpart C of this the respirators will be disposed of by spection, and testing of respirator com payable to the order of tbe UB. tbe Bureau in such manner as It deems ponents or subassemblies which are not eau of Mtnea. appropriate. listed In 111.21, shall be accompanied (c) Except as provided In 111.44, the examination, inspection, and testing of all respirator* shall be conducted by Ap proval and Testing, Bureau of Mines, Pittsburgh, Pa. 15213. (e) Where a respirator falls to meet the requirements for approval set forth In this part, all respirators and compo nents delivered in accordance with this section may be returned to the appli by the following deposits; (1) Complete re*plntor assem bly ....................................... 41,500 (3) Each Individual component or subassembly______________ 600 (d) Applicants, manufacturers, or their representatives may visit or com municate with Approval and' Testing In order to discuss the requirements for ap proval of any respirator or the proposed designs thereof. No charge shall be made f r such consultation and no written re port shall be Issued to applicants, manu facturers, or their representatives by the Bureau as a result of such consultation. 8 11.11 Content* of application. cant at his own expense, upon written request within 30 days after notice of disapproval. If no such request Is made, tbe respirators will be disposed of by the Bureau In such manner as it deems appropriate. Subpart C--Fee* 8 11.20 Examination, inspection and tearing of complete respirator assem blies; fees. (b) The Bureau reserves tbe right to conduct any examination. Inspection, or test It deems necessary to determine the quality and effectiveness of any listed or unlisted respirator assembly or respirator component or subassembly, and to assess the* cost of such examinations. Inspec tions, or tests against the applicant prior to the issuance of any approval for the respiratory equipment examined. In spected, or tested. (a) Each application for approval shall Except aa provided In I 11.22, the fol (c) The fees charged for the exami contain a complete written description of the respirator for which approval is re quested together with drawings and spec ifications (and lists thereof) showing lowing fees shall be charged by the Bureau for the examination. Inspection and testing of complete respirator assemblies: nation, Inspection, and testing of un listed respirator assemblies, unlisted In dividual respirator components or subassemblies, and for the additional exam full details of construction of the respi (a) Bell-contained breathing ap ination, Inspection, and testing of listed rator and Of tbe materials used. Draw paratus-- respirator assemblies and components or ings and specifications (and lists thereof) (1) Xntry and escape, l hour or subassemblies shall be at the rate of shall be submitted >n triplicate. xb) Drawings shall be titled, num bered, and dated; any revision dates shall be shown on the drawings, and the pur pose of each revision being sought shall be shown on the drawing or described on an attachment to the drawing to which It applies. (uc) Each application for approval shall tain a proposed plan for quality conwhlch meets tbe minimum require ^^mmee*nts set forth In Subpart E of this part. (d) Each application shall contain a statement that the respirator has been pretested by the applicant as prescribed In 111.44, and shall include the results of such tests. (e> Each application for approval shall contain a statement that the respirator component parts submitted for ap proval are either (l) prototypes, or (2) made on regular production tooling, with more___- S3.500 (3) Xntry and escape, leas than ) hour ............................... (3) Escape only___1--------------------(b) Oh mask*. Including pesti cide ne --r-Ft -- (1) Single haaard........................... (3) Type N........................................ (c) SuppUed-atrreeplraton______ (d) Dust, fume and mist refi ll) single particulate haaard hav ing an Air Contamination Level more than 0.06 mg./ m.* or 3 million particle* per cubic foot__________________ (3) Combination particulate baeard* having an Air Contami nation Level mors than 0.06 ng/m.1 or 3 million par ticle* per cubic foot________ (3) particulate hasard* haring aa Air Contamination Level lees than 0.06 mgym.* or 3 million particle* per cubic a, 750 3,000 t.100 4,100 760 500 750 $100 per day for each man-day required to be expended by the Bureau. (d> Upon completion of all examina tions, inspections, and tests of unlisted respirator assemblies or components, or following the completion of any addi tional examination, inspections, or tests of listed assemblies, or components or subassemblies, including retesting subse quent to disapproval, the Bureau shall advise the applicant In writing of the total coat assessed and the additional amount. If any, which must be paid to the Bureau as a condition of approval. (e) In the event the amount assessed by the Bureau for unlisted assemblies, or components or subassemblies Is less than the amount of the deposit sub mitted In accordance with paragraph (a) of this section, the Bureau shall refund the overpayment upon the Issuance of any approval or notice of disapproval. no operation Included which win not be Incorporated in regular production processing. 8 11.12 Delivery of reipiraton by appli cant; requirements. foot, radon daughters____ (4) All dusts, fume* ami mist*.. () Ctissotoal cartridge respira tors ........................... (f) Faint spray reeplraton______ (g) Pesticide reeplraton_________ 1,380 3,000 1.160 1,400 1,400 Subpart D--Approval and Disapproval 8 11.36 Certificates of approval; scope of approval. (a) Each applicant shall, when an ap plication Is filed pursuant to 111.10, be advised by the Bureau of the total number of respirator* and oomponent parts required for testing. (b) The applicant shall deliver, at his own expense, the number of completely assembled respirators and component parts required for testing, to Approval and Testing. Bureau of Mines, Pitts burgh, Pa. 15213. (c) Respirators and component parts submitted for approval must be made from materials specified In the applica tion. 81131 Examination, inspection and testing of respirator component* or snbaaaemMies; fere. Except as provided in 111.22, the fol lowing fees shall be charged by the Bureau for the examination, Inspection and testing of the individual respirator components or subassemblies: (a) Facepieces (b) Canister* (e) Cartridge* <d) Filter* ... () Boses____ (f) Blown .. (g) Harlesses 0450 too 600 660 360 350 100 (a) The Bureau and the Institute shall Issue certificates of approval pur suant to the provisions of this subpart only for individual, completely as sembled respirators which have been examined. Inspected, and tested, and which meet tKe minimum requirements set forth In Subparts H through M of this part, as applicable. (b) The Bureau and the Institute will not issue certificates of approval for any respirator component or for any respira tor subassembly. (c) The Bureau and the Institute shall not issue an informal notification of approval. However, If the application (d) One completely assembled respira twor approved under the provisions of dMfhls part may be retained by the Bu^Heavu as a laboratory exhibit, the remaln- 8 11.22 Unlieted free; additional feet; payment by applicant prior to ap proval. for approval, submitted In accordance with 111.11, stater that the submitted respirator and component parts are only prototypes, the Bureau will examine. In ^^ngg respirators may be returned to the (a) Applications for the examination, spect, and test such respirator and com applicant at his own expense, upon writ inspection and testing of complete ponerrt parts In accordance with the 101 FIDIIAl REGIJTfR VOl. 37, NO. 59--SATURDAY, MARCH 35, 1973 l HJN 034U RULES AND REGULATIONS 6249 provisions of this Part 11. If. upon com respirator for which approval was sought required by the Bureau and the Institute pletion of such examinations, inspections with a view to the possible correction of to assure quality control and proper use and testa, it Is found that the prototype any such defects, of the respirator, be labeled distinctly to meets the minimum requirements set (c) The Bureau and the Institute shall show the name of the applicant, and the forth In this pert, the Bureau and the not disclose, except to the applicant or name and letters or numbers by which Institute may Inform the applicant, In as required by statute or regulation, any the respirator or respirator component Is writing, of the results of the examina data, findings, or other information with designated for trade purposes, and the tions, inspections, and tests, and may respect to any respirator for which a lot number, serial number, or approxi require him to resubmit respirators and notice of dlsappoval is Issued. mate date of manufacture. component parts made on regular pro duction tooling, with no operations in cluded which will not be incorporated In regular production processing, for fur ther examination, inspection, and test ing, prior to Issuance of the certificate of approval. (d) Applicants required to resubmit respirators and component parts made on regular production tooling, with no operation Included which will not be Incorporated In regular production proc essing, shall be charged fees in accord ance with Subpart C of this part. S 11,31 Certificate* of approval; con tent*. (a) The certificate of approval shall contain a classification and a description of the respirator or combination of respirators for which it Is Issued, as provided In this part. (b> The certificate of approval shall specifically set forth any restrictions or limitations on the respirator's use in hazardous atmospheres. (c) Each certificate of approval shall be accompanied by the drawings and specifications (and lists thereof) sub mitted by the applicant in accordance with f 11.11. These drawings and specifications shall be Incorporated by reference in the certificate of approval, and shall be maintained by the applicant. The drawings and specifications listed In each certificate of approval shall set forth In detail the design and construction requirements which shall be met by the applicant during commercial production of the respirator. (d) Each certificate of approval shall be accompanied by a reproduction of the approval label design to be employed by the applicant with each approved respirator, as provided In f 11.33. (e) Mo test data or specific laboratory findings will accompany any certificate of approval, however, the Bureau will re lease pertinent test data and specific findings upon written request by the ap plicant, or as required by statute or regulation. (f) Each certificate of approval shall also contain the approved quality control plan as specified in ! 11.42. 5 11.32 Notice of disapproval. 11.33 Approval label* and marking*; approval of content*; n*e. (a) Full-scale reproductions of ap proval labels and markings, and a sketch or description of the method of applica tion and position on the*harness, con tainer, canister, cartridge, filter, or other component, together with instructions for the use and maintenance of the respirator shall be submitted to the Bu reau and the Institute for approval. (b> Approval labels shall bear the seals of the US. Bureau of Mines and the Department of Health, Education, and Welfare, the applicant's name and ad dress, an approval number assigned by the Bureau, and, where appropriate, re strictions or limitations placed upon the use of the respirator by the Bureau and the Institute. (c) The Bureau shall, where neces sary, notify the applicant when addi tional labels, markings, or instructions will be required. (d) Approval labels and markings shall only be used by the applicant to whom they were Issued. (e) Legible reproductions or abbrevi ated forms of the label approved by the Bureau and the Institute for use on each respirator shall be attached to or printed at the following locations: Respirator type Labe! type location Self-contained Entire___ Harness assembly breathing appa and canister ratUR. (where applicable). Gas mask.... Entire ... Mask container and canister Supplled-olr respl* Entire___ . Respirator container rater. or instruction card. Dust. fume, and Emir. Respirator container mist respirator. and Alter non* tainer. Abbrevi Filters. ated. Chemical-cartridge Entire. .. Respirator con respirator, (nelud- tainer. cartridge Ing paint spray container, and respirator. Alter containers (where appli cable). Abl>re?l- Cartridges and Al- ated. tars and filter containers. Pesticide respirator Entire___ Respirator con tainer, and car tridge and Alter containers. Abhrevl- Cartridges and ted. filters. S 11,34 Revocation of certificate* of ap proval. The Bureau and the Institute reserve the right to jointly revoke, for cause, any certificate of approval Issued pursuant to the provisions of this part. Such causes Include, but are not limited to. misuse of approval labels and markings, mislead ing advertising, violations of section 109(e) of the Federal Coal Mine Health and Safety Act of 1969 (30 U.S.C. 819 (e)), and failure to maintain or cause to be maintained the quality control re quirements of the certificate of approval, 11.35 Changes or modification of ap proved respirator*; issuance of mod* ificalion of certificate of approval. (a) Each applicant may, if he desires to change any feature of an approved respirator, request a modification of the original certificate of approval issued by the Bureau and the Institute for such respirator by filing an application for such modification in accordance with the provisions of this section. (b) Applications shall be submitted as for an original certificate of approval, with a request for a modification of the existing certificate to cover any proposed change. (c) The application shall be accom panied by appropriate drawings and specifications, and by a proposed auality control plan which meets the require ments of Subpart E of this part. (d) The application for modification, together with the accompanying mate rial, shall be examined by the Bureau to determine whether testing will be required. (a) The Bureau shall inform the ap plicant of the fee required for any addi tional testing and the applicant will be charged for the actual cost of any exami nation. Inspection, or test required, and such fees shall be submitted in accord ance with the provisions of Subpart C of this part. ff) If tha proposed change or modifi cation meets the requirements of this part, a formal certificate of modifica tion will be issued, accompanied, where necessary, by a list of new and revised drawings and specifications covering the change(s) and reproductions of revised fa) If. upon the completion of the ex uninations, inspections, and tests re wired to be conducted in accordance with the provisions of this part, It is found that the respirator does not meet the minimum requirements set forth In this part, the Bureau and the Institute shall issue a written notice of disapproval to the applicant. (b) Each notice of disapproval shall (f) The use of any Bureau and Insti tute approval label obligates the appli cant to whom it Is issued to maintain or cause to be maintained the approved quality control sampling schedule and the acceptable quality level for each charac teristic tested, and to assure that It Is manufactured according to the drawings and specifications upon which i.he certi ficate of approval is based. approval labels. 11.36 Delivery of changed or modified approved respirator. An approved respirator for which a formal certificate of modification has been Issued shall be delivered, with proper markings and containers, by the applicant to the Bureau of Mines, Ap proval and Testing, 4800 Forbes Avenue, be accompanied by all pertinent data or (g) Each respirator, respirator com Pittsburgh, PA 15313, as soon as It Is findings with respect to the defects of the ponent, and respirator container shall, as commercially produced. 102 ftDIRAl IWIJTIt, VOt, U7, NO. se--SATURDAY, MARCH >5, lttt TEN 6341 6250 RULES AND REGULATIONS Subpart E--Quality C ntrol a defect that Is a departure from estab ty control test methods, equipment, ana ^fel.40 Quality control plana, filing re- quiremenu. ^ As a part of each application for ap proval or modification of approval sub mitted pursuant to this part, each appli cant shall file with the Bureau and the Institute a proposed Quality control plan which shall be designed to assure the Quality of respiratory protection pro vided by the respirator for which ap lished standards and has little bearing on the effective use or operation of the respirator. (e) The quality oontrol Inspection test method to be used by the applicant or his agent for each characteristic re quired to be tested shall be described In detail. (f) Each Item manufactured shall be 100 percent inspected for defects In all critical characteristics and all defective records. <c> The Bureau and the Institute re serve the right to Jointly revoke, for cause, any certificate at approval where It is found that the applicant's quality control test methods, equipment, or rec ords do not insure effective quality con trol over the respirator for which the approval was Issued. Subpart F--Classification of Approved proval is sought. Items shall be rejected. Respirators; Scop* of Approval; At S 11.41 Quality control plant; contents, (a) Each quality control plan shall contain provisions for the management (g) The Acceptable Quality Level (AQL) for each major or minor defect so classified by the applicant shall be: (1) Major A. 1.0 percent; mospheric Hazards; Service Time S 11.50 Types of respirators to be ipproved; scope of approval. of Quality, Including; (1) Requirements (3) Major B. 3A percent; and Approvals shall be Issued tor the types for the production of quality data end (3) Minor. 4.0 percent. of respirators which have been classified the use of quality control records; (2) <h) Except as provided In paragraph pursuant to this Subpart P. have been oontrol of engineering drawings, docu (1) of this section, Inspection level n as Inspected, examined and tested by the mentations, and changes; (3) control described in M3L-8TD-105D, or Inspec Bureau In accordance with the provi and calibration of measuring and test tion level IV as described In MH^TD- sions of Subparts O through M of this equipment; (4) control of purchased 414, shall be used for major and minor part, and have been found to provide material to Include Incoming inspection; characteristics and 100 percent inspec respiratory protection for fixed periods (5) lot Identification, control of proc tion for critical characteristics. of time against the hazards specified In esses, manufacturing, fabrication, and (1) Subject to the approval of the such approval. assembly work conducted in the appli cant's plant; (6) audit ol final inspec tion of the completed product; and, <7> the organizational structure necessary to carry out these provisions. (b) Each provision for Incoming and final inspection in the quality control plan shall include a procedure for the selection of a sample of respirators and the components thereof for testing, in accordance with procedures set forth In )^Military Standard MIL-STD-105D, ^Sampling Procedures and Tables for I inspection by Attributes." or Military ' Standard MIL-STD-414, "Sampling Procedures and Tables for Inspection by Variables for Percent Defective," or an approved equivalent sampling proce dure, or an approved combination of sampling procedures. Incoming bulk raw material inspection or verification of specification, and ln-proeess Inspection shall be sufficient to ensure control of product quality through the manufac turing cycle. Bureau and the Institute, where the quality control plan provisions for raw material, processes, manufacturing, and fabrication Inspection are adequate to in sure control of finished article quality, destructive testing of finished articles may be conducted at a lower level of in spection than that specified In para graph (h) of this section. 11.42 Proposed quality control plans; approval by the Bureau and the Insti tute. (a) Each proposed quality control plan submitted in accordance with this subpart shall be reviewed by the Bureau and the Institute to determine Its effec tiveness In Insuring the quality of res piratory protection provided by the respirator for which an approval Is sought. (b) If the Bureau and the Institute de termine that the proposed quality control plan submitted by the applicant will not Insure adequate quality control, the Bu S 11.51 Entry and escape, or escape only; classification. Respirators described in Subparts H through M of this part shall be classified for use as follows; (a) Entry and escape. Respirators de signed and approved for use during entry into a hazardous atmosphere, and for escape from a hazardous atmosphere; or, (b) Escape only. Respirators designed and approved for use only during escape from & hazardous atmosphere. S 11.52 Respiratory hazards; classifica tion. Respirators described In Subparts H through M of this part shall be classified as approved for use against any or all of the following respiratory hazards: (a) Oxygen deficiency; (b) Oases and vapors; (c) Particles, including dusts, fumes and mists; and <d> Pesticides. (c) The sampling procedure shall In clude a list of the characteristics to be tested by the applicant or his agent. (d) The characteristics listed in ac cordance with paragraph (c) of this sec tion shall be classified according to the potential effect of such defect and grouped into the following classes: (1) Critical. A defect that-judgment and experience Indicate Is likely to re sult In a condition Immediately hazard ous to life or health for individuals using or depending upon the respirator; (2) Major A. A defect, other than critical, that Is likely to result In failure to the degree that the respirator does not provide any respiratory protection, or a defect that reduces protection and reau and the Institute shall require the applicant to modify the procedures and testing requirements of the plan prior to approval of the plan and issuance of any certificate of approval. (c) Approved quality control plans shall constitute a part of and be Incor porated into any certificate of approval Issued by the Bureau and the Institute, and compliance with such plans by the applicant shall be a condition of ap proval. 3 11.43 Quality control record*; review by the Bureau and the Institute; rev ocation of approval. (a) The applicant shall keep quality control Inspection records sufficient to carry out the procedures required in g 11.53 Service time; classification. (a) Respirators described In Subparts H through M of this part shall be classi fied, where applicable, as approved for use during the follqwing prescribed service times: (1) Four hours; (2) Three hours; (3) Two hours; (4) One hour; (5) Forty-five minutes; (6) Thirty minutes; (7) Fifteen minutes; (8) Ten minutes; (9) Five minutes; (10) Three minutes. (b) Other service times may be pre scribed by the Bureau and the institute. la not detectable by the user; MIL-8TD-105D or MIL-STD-414, or an Subpart G--General Construction and (3) Major B. A defect, other than Ma approved equivalent sampling procedure. Performance Requirement* jor A or critical, that Is likely to result In ^Mduced respiratory protection, and is ^Mtectable by the user; and (4) Minor. A defect that is not likely Jr to materially reduce the usability of the respirator for Its Intended purpose, or <b) The Bureau and the Institute re serve the right to have their representa tives Inspect the applicant's quality con trol test methods, equipment, and rec ords, and to Interview any employee or agent of the applicant in regard to quali 11.60 Construction and performance requirements; general. (a) The Bureau and the Institute shall Issue approvals for the types of respira tors described In Subparts H through M FCDIKAl MOISTtR, V l. 37, N . S9--SATURDAY, MARCH IS, 1972 rEN 6342 103 RULES AND REGULATIONS 6251 of this pan which have met the mini mum requirements set forth for such respirators In this Part 11. (b) In addition to the types of respira tors specified In Sdbparts H through M, the Bureau and the Institute shall Issue approvals for other respiratory protec tive devices not specifically described In this Part 11 suDject to such additional requirements as may be imposed in ac cordance with 111.63(c), 11.61 General coni., action require* menu. (a) Respirators will not be accepted by the Bureau for examination, inspec tion and testing unless they are designed on sound engineering and scientific prin ciples, constructed of suitable materials and evidence good workmanship. (b> Respirator components which come Into contact with the wearer's skin shall be made of nonirritating materials. (c) Components replaced during or after use shall be constructed of mate rials which will not be damaged by nor mal handling. (d> Mouthpieces, hoods, helmets, and facepieces, except those employed In sin gle-use respirators, shall be constructed of materials which will withstand re peated disinfection as recommended by the applicant In his instructions for use of the device. (e) The components of each respira tor approved by the Bureau and the In stitute for use where permissibility Is re quired shall meet the requirements for permissibility and Intrinsic safety set forth In Part 18, Subchapter D of this chapter (Bureau of Mines Schedule 2G). 11.62 Component parts; minimum re quirements. (a) The component parts of each respirator shall be: (1) Designed, constructed, and fitted to insure against creation of any hazard to the wearer; (2) Assembled to permit easy access for Inspection and repair of functional parts; and (3) Assembled to permit easy access to parts which require periodic cleaning and disinfecting. <b> Replacement parts shall be de signed and constructed to permit easy installation and to maintain the effec tiveness of the respirator. 11.63 Test requirement.-; general. (a) Each respirator and respirator component shall when tested by the applicant and by the Bureau, meet the applicable requirements set forth In Subparts H through M of this part. (b) Where a combination respirator Is assembled from two or more types of respirators, as described In this part, each of the individual respirator types which have been combined shall, as applicable, meet the minimum require ments for such respirators set forth in Subparts H through M of this part, and such combination respirators, except as specified In 5 11.70(b)(2), will be classi fied by the type of respirator In the com bination which provides the least pro tection to the user, 104 (c) In addition to the minimum re quirements set forth In Subparts H through M of this part, the Bureau and the Institute reserve the right to re quire, as a further condition of approval, any additional requirements deemed nec essary to establish the quality, effec tiveness, and safety of any respirator used as protection against hazardous atmospheres. (d> Where It Is determined after re ceipt of an application that additional requirements will be required for ap proval, the Bureau will notify the appli cant in writing of these additional re quirements, and necessary examinations. Inspections, or tests, stating generally the reasons for such requirements, ex aminations, Inspections, or tests. 11.64 Pretesting by applicant; ap proval of test methods by the Bureau. (a) Prior to making or filing any ap plication for approval or modification of approval, the applicant shall conduct, or cause to be conducted, examinations, in spections, and tests of respirator per formance which are equal to or exceed tht severity of those prescribed In this part. ib) With the application, the appli cant shall provide a statement to the Bureau showing the types and results of the examinations, inspections, and tests required under paragraph (a) of this section and state that the respirator meets the minimum requirements of Subparts H through M of this part, as applicable. Complete examination, In spection, and test data shall be retained on file by the applicant and be sub mitted, upon request, to the Bureau. (c) The Bureau may, upon written request by the applicant, provide draw ings and descriptions of its test equip ment and otherwise assist the applicant In establishing a test laboratory or se curing the services of a testing agency. (d> The Bureau will not Issue an ap proval to the applicant until It has vali dated the applicant's test results. 11.65 Conduct of examinations, in spections, and tests by the Bureau and the Institute; assistance by applicant: observers; recorded data; public demonstrations. (a) All examinations, inspections, and tests conducted pursuant to Subparts H through M of this part will be under the sole direction and control of the Bureau and the Institute. (b) The Bureau and the Institute may, as a condition of approval, require the assistance of the applicant or agents of the applicant during the assembly, dis assembly, or preparation of any respira tor o,' respirator component Prior to test ing or in `he operation of such equip ment during testing. (c) Only Bureau and Institute person nel. persons assisting the Bureau pur suant to paragraph (b> of this section, and such other persons as are requested by the Bureau, the Institute, or the appli cant to be observers, shall be present dur ing any examination, Inspection, or test conducted pnor to the Issuance of an ap proval by the Bureau and the Institute for the equipment under consideration. (d> The Bureau and the Institute shall hold as confidential any analyses, draw ings, specifications, or materials sub mitted by the applicant and shall not dis close any principles or patentable fea tures of such equipment, except as re quired by statute or regulation- (e) As a condition of each approval Is sued for any respirator, the Bureau and the Institute reserve the right, following the issuance of such approval, to conduct such public tests and demonstrations of the approved respiratory equipment as Is deemed appropriate. 11.66 Withdrawal of applications; re fund of fees. (a) Any applicant may, upon a writ ten request submitted to the Bureau or the Institute, withdraw any application for approval of any respirator. (b) Upon receipt of a written request for the withdrawal of an application, the Bureau shall determine the total mandays expended and the amount due for services already performed during the course of any examinations, inspections, or tests conducted pursuant to such ap plication. The total amount due shall be determined in accordance with the pro visions of 9 11.22 and assessed against the fees submitted by the applicant. If the total amount assessed is less than the fees submitted, the Bureau shall refund the balance together with a statement of the charges made for services rendered. Subpart H--Self-Contained Breathing Apparatus 11.70 Self-contained breathing appa ratus; description. <a> Self-contained breathing appara tus, including all completely assembled, portable, self-contained devices designed for use as respiratory protection during entry into and escape from or escape only from hazardous atmospheres, are de scribed as follows; (1) Closed-circuit apparatus. An ap paratus of the type in which the exhala tion is rebreathed by the wearer after the carbon dioxide has been effectively removed and a suitable oxygen concen tration restored from sources composed of; U) Compressed oxygen; or fii) Chemical oxygen; or (ill) Liquid-oxygen. <2> Open-circuit apparatus. An appa ratus of the following types from which exhalation Is vented to the atmosphere and not rebreathed: (i) Demand-type apparatus. An appa ratus In which the pressure inside the facepiece in relation to the immediate environment is positive during exhala tion and negative during inhalation. (ii) Pressure-demand-type apparatus. An apparatus In which the pressure in side the facepiece in relation to the im mediate environment Is positive during both inhalation and exhalation. (b) The following respirators may be classified as designed and approved for NO, G9--pt. n- KDERAl REGISTER. VOL 37. NO. 59--SATURDAY, MARCH 15, 1973 rEN 6343 6252 RULES AND REGULATIONS uUs9Ce Uduring emergency entry Into a haz- where applicable, provide for holding a vide adequate tension during suspension arrddous atmosphere: A combination respl- full facepiece In the ready position when and an even distribution of pressure over ^0m%oarthlwnghicahppIanrcaltuudsesanad self-contained a Type "C" or "CE" supplied air respirator, where (1) the self-contained breathing appara tus is classified for 3-, 5-, or 10-mlnute service time and the air line supply Is used during entry, or (3) the self- contained breathing apparatus Is classi not in use. 811.74 Apparatus containers; minimum requirements. (a) Apparatus may be equipped with a substantial, durable container bearing markings which show the applicant's name, the type and commercial desig the entire area In contact wHh the face. (b) Mouthpieces shall be equipped, where applicable, with adjustable and replaceable harnesses designed and con structed to hold the mouthpiece In place. 8 11.79 Breathing gas; minimum re quirement*. fied for 15 minutes or longer sendee nation of the respirator It contains, and (a) Breathing gas used to supply ap time and not more than 20 percent of all appropriate approval labels. paratus shall be respirable and contain the rated capacity of the air supply Is (b) Containers supplied by the appli no less than 19.5 (dry atmosphere) used during entry. cant for. carrying or storing self- volume percent of oxygen. (c) Self-contained breathing appara contained breathing apparatus will be (b) Oxygen. Including liquid oxygen, tus classified for less than 1 hour serv Inspected, examined, and tested as com shall meet the minimum requirements ice time will not be approved for use ponents of the respirator for which ap for medical or breathing oxygen set during underground mine rescue and proval Is sought. forth In the UH. Pharmacopeia. recovery operations except as auxil (c) Containers for self-contained (c) Compressed, gaseous breathing air iary equipment. breathing apparatus shall be designed shall meet the applicable minimum (d) Self-contained breathing appara and constructed to permit easy removal grade requirements for Type I gaseous tus classified for less than 30 minutes' of the apparatus. air set forth in the Compressed Gas As service time will not be approved for use as auxiliary equipment during un derground mine rescue and recovery 8 11.75 Half-mask facepieces, full face- pieces, mouthpieces; fit; minimum requirements. sociation Commodity Specification for Air, G-7.1 (Grade D or higher quality). (d) Compressed, liquefied breathing operations. i 11,71 Self-contained breathing appara tus i required components. (a) Each self-contained breathing apparatus described In 111.70 shall, where Its design requires, contain, the following component parts: (a) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial shapes and sixes, either (1) by providing more than one facepiece size, or (2) by providing one facepiece size which will fit varying facial shapes and sizes. air shall meet the applicable minimum grade requirements for Type n liquid air set forth In the Compressed Gas Asso ciation Commodity Specification for Air, G-7.1 (Grade B or higher quality). 3 11.79-1 Interchangeability of oxygen and air prohibited. (1) Facepiece or mouthpiece, and (b) Full facepieces shall provide for Approvals shall not be Issued by the noeecllp; the optional use of corrective spectacles Bureau and the Institute for any appa (2) Respirable breathing gas con or lenses which shall not reduce the ratus, combination of respirator assem tainer: respiratory protective qualities of the bly or any apparatus or respirator com (3) Supply of respirable breathing apparatus. ponent which is designed or constructed m(4) Gas pressure or liquid level gagee; (c) Apparatus with mouthpieces shall be equipped with nosecllps which are to permit the Interchangeable use of oxygen and air. (5) Timer; (6) Remaining service life Indicator securely attached to the mouthpiece or apparatus and provide an airtight seal. 3 11.80 Compre**ed breathing gaa and liquified breathing gas container*; or warning device; (d) Facepieces shall be designed to minimum requirement*. (7) Hand-operated valves; (8) Breathing bag; (9) Safety relief valve or safety relief system; and (10) Harness. (b) The components of each. selfcontained breathing apparatus shall prevent eyepiece, spectacle, and lens fogging. S 11.76 Facepiece*; eyepiece*; mini mum requirement*. (a) Facepieces shall be designed and constructed to provide adequate vision (a) Compressed breathing gas and liquefied breathing gas containers shall meet the minimum requirements of the Department of Transportation for Inter state shipment of such containers when fully charged. meet the minimum construction require which is not distorted by the eyepiece. (b) Such containers shall be perma ments set forth In Subpart a of this part. 9 11.72 Breathing tubes; minimum re quirements. (a) Flexible breathing tubes used In conjunction with breathing apparatus shall be designed and constructed to prevent: (1) Restriction of free head move (b) All eyepieces shall be designed and constructed to meet the impact and pen etration requirements specified In Fed eral Specification, Mask, Air Line, and Respirator, Air Filtering, Industrial, GGG-M-125d. October 11, 1965. Tnls Federal Specification is available from the Government Printing Office or the General Services Administration. nently and legibly marked to Identify their contents, e.g., compressed breath ing air, compressed breathing oxygen, liquefied breathing air, or liquefied breathing oxygen. (c) Container! normally removed from apparatus for refilling shall be equipped with a dial Indicating gage which shows the pressure In the con tainer. ment; (2) Disturbance of the fit of face- pieces and mouthpieces; (3) Interference with the wearer's ac tivities; and, (4) Shutoff of airflow due to Unking, or from chin or arm pressure. * 11.73 Harnesses; installation and con struction; minimum requirements. (a) Each apparatus shall, where nec essary, be equipped with a suitable 8 11.77 Inhalation and exhalation valve*; minimum requirement*. (a) Inhalation and exhalation valves shall be provided where necessary and protected against damage and distortion. (b) Exhalation valves shall be: (1) Protected against external Influ ence, and (2) Designed and constructed to pre vent inward leakage of contaminated air. (d) Compressed breathing gas con tained valves or a separate charging system or adapter provided with each apparatus shall be equipped with outlet threads specified for the service by the American National Standard for Com pressed Gas Cylinder Valve Outlet and Inlet Connections, B57.1 (1965), obtain able from American National Standards Institute. Inc., 1430 Broadway, New York, NY 10018. harness designed and constructed to hold the components of the apparatus In po 0tion against .the wearer's body. (b) Harnesses shall be designed and onstructed to permit easy removal and 8 11.78 Head harnesacs; minimum re quirement*. (a) Facepieces shall be equipped with adjustable and replaceable head har 3 11.8' Ca* pressure gages; minimum requirement*. (a) Gas pressure gages employed on compressed breathing gas containers shall be calibrated In pounds per square replacement of apparatus parts, and, nesses designed and constructed to pro Inch. 105 FIDERAl RIGISTIR, VOt 37, NO. 59--SATURDAY, MARCH 35, 1973 ^ C/JN 0344 rl9-l T S ** 4 rt RULES AND REGULATIONS 62S3 (b) Liquid-level gages shall be cali which Indicate the remaining liquid con (2) The relief valve or system shall be brated In fractions of total container tent in the container. designed to prevent external atmos capacity, or in units of liquid volume. <b) The timer or other indicator shall pheres from entering the breathing <c) Oas pressure gages other than be accurately calibrated in minutes of circuit. those specified in paragraphs (a) and (b) remoinln g service life. (3) The relief valve or system shall be of this section shall be calibrated in: (c) Timers shall be readable by sight designed to permit manual overriding (1) Pounds per square inch, or and by touch during use by the wearer. for teat purposes and in the event of a (2) In fractions of total container (d) Timers shall be equipped with au failure in the valve or system. capacity, or (3) Both In pounds per square inch inch and fractions of total container capacity. (d) (l) Dial-indicating gages shall be reliable to within 5 percent of full scale when tested both up and down the scale at each of 5 equal Intervals. (2) The full scale graduation of dial- indicating gages shall not exceed 150 tomatically ; reset alarms which will wam the wearer for a period of 7 sec onds or more after the preset time has elapsed. (e) Remaining service-life Indicators or warning devices shall be provided in addition to a pressure gage on xompressed gas self-contained breathing ap paratus, except apparatus used for escape only, and shall operate automat 8 11.84 Breathing bag*; minimum re quirement*. (a) Breathing bogs shall have suffi cient volume to prevent gas waste during exhalation and to provide on adequate reserve for inhalation. (b) Breathing bags shall be con structed of materials which are flexible and resistant to gasoline vapors. percent of the maximum rated cylinder ically without preadjustment by the (c) Breathing bags shall be installed pressures specified for the container in wearer. In a location which will protect them applicable Department of Transportation (f) Each remaining service-life indi from damage- or collapse by external specifications or permits. cator or warning device shall give an forces, except on apparatus classified for (e) (1) Stem-type gages shall be alarm when the remaining service life escape only. readable by sight and by touch and shall have a stem travel distance of not less than one-fourth inch between each graduation. (2) A minimum of five graduations shall be engraved on the stem of each gage and these graduations shall include readings for empty, one-quarter, onehalf. three-quarters, and full. of the apparatus Is reduced within a range of 20 to 25 percent of its rated service time. 11.83 Hand-operated valve*; minimum requirement*. (a) Hand-operated valves shall be de signed and constructed to prevent re moval of the stem from the valve body S 11.85 Self-contained breathing appa ratus; performance requirement*; general. Self-contained breathing apparatus and the individual components of each such device shall as applicable meet the requirements speoifled in It 11.85-1 through 11.85-19. (3) Stem gage readings shall not vary during normal usage to Insure against 8 11.85-1 Component part* expo*ed to from true readings by more than one- a sudden release of the full pressure of oxygen preiiure*; minimum require sixteenth inch per inch of stem travel. the container when the valve Is opened. ment*. If) The loss of gas through a broken gage or severed gage connection shall not exceed 70 liters per minute when the cylinder pressure is 6,900 kN/m.' a.OOO pounds per square inch gage) or when the liquid level Is at one-half. (g) Where gages are connected to the (b) Valves shall be designed or posi tioned to prevent accidental opening and closing, and damage from external forces. (c) Valves operated during use of the apparatus shall be Installed In locations where they can be readily adjusted by Each applicant shall certify that the materials employed in the construction of component part* exposed to oxygen pressures above atmospheric pressure are safe and compatible for their intended use. apparatus through a gage line, the gage the wearer. 8 11.8^-2 Compresaed ga* filter*; mini and line shall be capable of being Iso (di Main-line valves, designed and mum requirements. lated from the apparatus except where the failure of the gage or line would not Impair the performance or service life of the apparatus. constructed to conserve gas In the event of a regulator or demand valve failure, shall be provided in addition to gas con tainer valves, except when such failure All self-contained breathing apparatus using compressed gss shall have a filter downstream of the gas source to effec tively remove particles from the gas (h) Oxygen pressure gages shall have will not affect performance, stream. the words, "Oxygen" and "Use No Oil." marked prominently on the gage. (e) Hand-operated bypass systems designed and constructed to permit the 811-85-3 Breathing bag teat. (1) (1) Apparatus using compressed breathing gas, except apparatus classi fied for escape only, shall be equipped with gages visible to the wearer which Indicate the remaining gas content In the container. (2) Apparatus using liquefied breath ing gas, except apparatus classified for escape only, shall be equipped with gages visible to the wearer which indicate the remaining liquid content in the con tainer: however, where the liquid con tent cannot be rapidly vented, and the service time of the device begins imme diately after filling, a timer shall be provided In place of r visible gage. 11.82 Timers; elapsed time indicators; remaining service life indicator; min imum requirements. wearer to breathe and to conserve his gas supply In the event of a regulator or demand valve failure, shall be provided where necessary. (f) Valves installed on apparatus shall be clearly distinguishable from one another by sight and touch. (g) The bypass system valve control shall be colored red. (h) A main-line or bypass valve or system will not be required on apparatus for escape only. (1) Safety relief valves or systems, de signed and constructed to release excess pressure In the breathing circuit, shall be provided on closed-circuit apparatus, and shall meet the following requirements: (1) The relief valve or system shall operate automatically when the pressure (a) Breathing bags will be tested in an air atmosphere saturated with gasoline vapor at room temperature (24*-30* C./ 75*-85* F.) for a continuous period of twice the rated time of the apparatus (except for apparatus for escape only where the test period shall be the rated time of the apparatus). (b) The bag will be operated during this test by a breathing machine with 24 respirations per minute and a minutevolume of 40 liters. (c) A breathing machine cam with a work rate of 622 kg.-m./mln. will be used.1 (d> The air within the bag(s) shall not contain more than 100 parts per mil lion of gasoline vapor at the end of the teat. la) Elapsed time Indicators shall be provided for apparatus with a chemical oxygen source, except: (1) Apparatus used for escape only; or, In the breathing circuit on the inhala tion side of the breathing bag reaches 13 mm. (one-half inch) water-column height of pressure above the minimum pressure required to fill the breathing < Silverman. L.. a. Lee, T. Plotkln. L. Amory, and A. R. Yancey, Fundamental Factors In Design of Protective Equipment, OA.RJ3. Report No. 573a. leeued Apr. 1. 1945. The dimensions of the breathing machine (2) Liquefied breathing gas apparatus bag, within the breathing resistance re cam are available from the Bureau upon equipped with gages visible to the wearer quirements for the apparatus. request. 106 FEDERAL REGISTER. VOL. 37, NO. S9---SATURDAY. MARCH 3S, 1972 TEN 6345 6254 RULES AND REGULATIONS 1X1.85-4 Weigh! requirement. demand-apparatus is lowered by 61 nun. (5) A concentration of 5 percent (a) The completely assembled and (2 Inches) water-column height when carbon dioxide In air will be exhaled Into fully charged apparatua aball not weigh full container pressure Is applied. the facepiece. more than 16 kg. (35 pounds); however, (c) Where pressure demand appara (b) Cloeed-circuit apparatus: where the weight decrease* by more than 36 percent of Its Initial charge weight during Its rated service life, the maxi mum allowable weight of a completely assembled and fully charged apparatus shall be 18 kg. (40 pounds). (b) Where an apparatus employs equipment which contributes materially to the wearer's comfort, e.g., a cooling tus are tested, the flow will be measured st zero gage pressure in 'he facepiece. (d) Where apparatus with com pressed-breathing-gas containers are tested, the flow test shall also be made with 3,460 kN/m.* (500 p-sXg.) container pressure applied. S 11.85-9 Ga* flow test; closed-circuit apparatus. (1) The concentration of carbon diox ide in Inspired gas in closed-circuit apparatus will be measured at the mouth while the parts of the apparatus con tributing to dead-air space are mounted on a dummy head and operated by the breathing machine as in paragraphs (a) (1) through (5) of this section. (c) During the testing required by system, the completely assembled and fully charged apparatus shall not weigh more than 18 kg. (40 pounds) regardless of the decrease In weight during use. (a) Where oxygen Is supplied by a constant-flow device only, the rate of flow shall be at least 3 liters per minute for the mitire rated service time of the paragraphs (a) and (b) of this section, the concentration of carbon dioxide in Inspired gas at the mouth will be con tinuously recorded, and the maximum average concentration during the inhala 8 11.85--5 Breathing remittance teat; in apparatus. tion portion of the breathing cycle shall halation. (b) Where constant flow Is used In not exceed the following limits; (a) Resistance to Inhalation airflow will be measured in the facepiece or mouthpiece while the apparatus Is oper ated by a breathing machine as de scribed in f 11.86-3. conjunction with demand flow, the con stant flow shall be greater than 1.5 liters per minute for the entire rated service time. (c) All demand-flow devices shall pro Where the service time is: Minimum allowable average concentration of carbon dioxide in inspired air. percent by volume (b) The inhalation resistance of openeircult apparatus shall not exceed 32 mm. (1.35 Inch) water-column height (at a flow rate of 120 liters per minute). vide at least 30 liters of oxygen per minute when In the fully open position. 11.85--10 Service time tett; open-cir cuit apparatus. Not mom than 30 mlnutee___________ 1 hour.--------------------------3 heurx 1. 6 3 hour* 1.0 4 hour*_____________________________ 3.5 3.0 1.0 (c) The Inhalation resistance of cloeed-circuit apparatus shall not ex ceed the difference between exhalation resistance (t 11.85-6(0) and 10 cm. (4 Inches) water-column height. S 11.85--6 Breathing remittance teat; ex (a) Service time will be measured with a breathing machine as described In 111.85-3. (b) The open-circuit apparatus will be classified according to the length of time It supplies air or oxygen to the (d> In addition to the tests require ments for closed-circuit apparatus set forth in paragraph (b) of this section, gas samples will be taken during the course of the man tests described In Tables 1, 2, 3, and 4. These gas samples halation. (a) Resistance to exhalation airflow will be measured in the facepiece or mouthpiece of open-circuit apparatus breathing machine. (c) The service time obtained on this test will be used to classify the open- circuit apparatus In accordance with will be taken from the closed-circuit ap paratus at a point downstream of the carbon dioxide sorbent, and they shall not contain more than 0.5 percent car with air flowing at a continuous rate of 111.53. bon dioxide at any time. 86 liters per minute. (b) The exhalation resistance of de mand apparatus shall not exceed 25 mm. a Inch) water-column height. (c> The exhalation resistance of pres sure-demand apparatus shall not ex ceed the static pressure in the facepiece by more than 51 nun. (2 inches) watercolumn height. (d) The static pressure (at zero flow) In the facepiece shall not exceed 38 mm. (1.6 Inchee) water-column height (e) Resistance to exhalation airflow will be measured In the facepiece or mouthpiece of closed-circuit apparatus with a breathing machine as described In 111.85-3. and the exhalation resistance shall not exceed 51 mm. (3 Inches) water-column height. S 11.85--7 Exhalation valve leakage test. (a) Dry exhalation valves and valve seats will be subjected to a suction of 26 mm. (1 Inch) water-column height while in a normal operating position. (b) Leakage between the valve and the valve seat shall not exceed 30 milli liters per minute. 11.85-8 Gas flow test; open-circuit ap paratus. (a) A static-flow test will be per formed on all open-circuit apparatus. (b> The flow from the apparatus shall be greater than 200 liters per minute S 11.85-11 Service time test; closed-cir cuit spparstus. (a) The closed-circuit apparatus will be classified according to the length of time it supplies adequate breathing gas to the .wearer during man test No. 4 described In Table 4. (b) The service time obtained on man test No. 4 will be used to classify, the closed-circuit apparatus in accordance with 111.53. { 11.85-12 Test for carbon dioxide In inspired gas; open, and closed-circuit apparatus; maximum allowable limits. (a) Open-circuit apparatus: (1) The concentration of carbon dioxide In Inspired gas In open-circuit apparatus will be measured at the mouth while the apparatus mounted on a dummy head Is operated by a breathing machine.' (2) The breathing rate will be 14.5 respirations per minute with a minutevolume of 10.5 liters. (3) A sedentary breathing machine cam will be used. (4) The apparatus will be tested at a temperature of 27*2' C. (80*5* R.). * Eoos. X. J., and J. Lamonics. A MachineTast Method tor Msasurlng Carbon Dioxide In the Inspired Air of Self-Contained Breathing Apparatua. Bureau at Minas Report of In 11,85-13 Test* during low tempera ture operation. (a) The applicant shall specify the minimum temperature for safe opera tion and two persons will perform the tests described in paragraphs (c) and (d> of this section wearing the appa ratus according to applicant's directions. At the specified temperature, the appa ratus shall meet all the requirements de scribed in paragraph (e) of this section. (b) The apparatus will be precooled at the specified minimum temperature for 4 hours. (c) The apparatus will be worn In the low temperature chamber for 30 min utes, or for the service time of the ap paratus. whichever Is less. (d) During the test period, alternate 1-minute periods of exercise and rest will be required with the exercise periods consisting of stepping onto and off a box 21.5 cm. (8% inches) high at a rate of 30 cycles per minute. (e) (1) The apparatus shall function satisfactorily at the specified minimum temperature on duplicate tests. (2) The wearer shall have sufficient unobscured vision to perform the work. (3) The wearer shall not experience undue discomfort because of airflow re striction or other physical or chemical changes In the operation of the when the pressure in the facepiece of vestigations SSS5. IMS, 11 pp. apparatus. 107 KDflAl MOUTH, VOL. 37, NO. 5V--SATURDAY, MARCH 25, 1472 TEN 6346 RULES AND REGULATIONS 6255 U> Auxiliary low-temperature part* which are commercially available to the user may be used on the apparatus to meet the requirements described In par agraph (e) of this section. $11.85-14 Msn tests; testing condi tions; general requirements. (a) The man tests described In Tables l, 2. 3, and 4 represent the workload per formed in the mining, mineral, or allied industries by a person wearing the appa ratus tested. (b) The apparatus tested will be worn by Bureau personnel trained in the use of self-contained breathing apparatus, and the wearer will, before participating in these tests, pass a physical examina tion conducted by a qualified physician. (c) All man tests will be conducted by the Bureau. <d) The apparatus will be examined before each man test to ensure that it is In proper working order, (e) Breathing resistance will be meas ured within the facepiece or mouthpiece and the wearer's pulse and respiration rate will be recorded during each 2 min ute sample period prescribed in tests 1, 2, 3, and 4. (f) Man tests 1, 2, 3, 4, 5, and 6 will be conducted in duplicate. (g) If man tests are not completed through no fault of the apparatus, the test will be repeated. I 11.85-1S Man tests 1, 2, 3, and 4; requirements. (a) Man tests 1, 2, 3, and 4. set forth in Tables 1, 2, 3. and 4 respectively, pre scribe the duration and sequence of spe cific activities. These tests will be conducted to: <1) Familiarize the wearer with the apparatus during use; (2) Provide for a gradual increase in activity; 13) Evaluate the apparatus under dif ferent types of work and physical ori entation; and (4) Provide information on the op erating and breathing characteristics of the apparatus during actual use. $ 11.85--16 Msn test 5; requirement*. (a) Test 9 will be conducted to deter mine the maximum length of time the apparatus will supply the res piratory needs of the wearer while he is sitting at rest. <b> The wearer will manipulate the devices controlling the supply of breath ing gas to the advantage of the apparatus. (c> Samples of inspiration from within the apparatus facepiece or mouthpiece shall be taken once every 15 minutes, and shall meet the minimum requirement for oxygen specified in {11.73(a) of this part, and the maximum allowable average concentration of carbon dioxide specified in I 11.85-12(0. (d) One sample of inspiration will be taken in tjie case of 3-, 5-. and 10-mlnute apparatus. 11.85-17 Mt< test (r. rrquircmrnt*. (a) Man test 6 will be conducted with respect to liquefied breathing gas appara tus only. <b> This test will be conducted to eval uate operation of the apparatus in other than vertical positions. (c) The wearer will He face downward for one-fourth the service life of the ap paratus with a full charge of liquefied breathing gas, and then a one-quarter full charge of liquefied breathing gas. (d> The test will be repeated with the wearer lying on each side and on his back. (e) The oxygen content of the gas sup plied to the wearer by the apparatus will be continuously measured. 8 11.85-18 Mnn teal*: perfiirmiuu-o rr- quin-mrnl*. (a) Hie apparatus shal< satisfy the respiratory requirements of the wearer for the classified service time. (b> Fogging of the eyepiece shall not obscure the wearer's vision, and the wearer shall not experience undue dis comfort because of fit or other charac teristics of the apparatus. (c) When the ambient temperature during testing is 24*fl* C. 175**10* P.>. the maximum temperature of in spired air recorded during man tests shall not exceed the following, after correc tion for deviation from 24* C. (75* F.): Wlu*r. l--Tcrnl Miixlmuin 1,'Mrit,- Wlh-rp yrivliv lift. rrtnilvr .jl.l.1 Irninm of ni-ixtr.itu.* lx humidity ,, Cif Itixidri.l ;iir Inaiilr*-*! Mr ah*ll not picix-M U hour or lest.. ... ' jhourta^hotir.. 1 to 2 hours............. 3 hour*. , 4 hour*. (MW soim o-ftti an-tin u-.tn 5fMllO Kft io-ino 13A - 123 111) lift im iiu lm lllft <15 ft7 fl2 1 13 4f. H 1'i i ;ix n nl# i Wliarr iw*rcvHl rrluil... luunhllly la Vi inn and UJI|>1 ratu* I* finluiml Mr panii# wily. IIh-v- inniliiiiim i.tnitoitik- trni|irrlurTM will la- Inrun-wl liy S* l.\ (ri* K ) 8 11.85-19 Ca* lihhine-* iral; minimum requirement*. (a> Each apparatus will be tested for tightness by persons wearing It In an atmosphere of 1,040 p.p.m. isoamyl acetate. (b> Six persons will each wear the ap paratus In the test concentrations spec ified in paragraph (a) of this section for 2 minutes and none shall detect the odor or taste of the test vapor. Tails I. -Duration a so Rrgi'fc'frr. or st*r< mr Amvim* rna Tsst I. In Minvtss (>0 CfR Part It, Kul>|mrl II, | I I.Hfl, cl srf|.) Activity I minutes ft minute* Service Him10 mlnutei 15 minutes 80 minutes 4ft minutes 1 bow 2,4. and 4 hours Sampling tod readlngi. Wilks ot 4.8 km. (8 miles) per hour.. Sampling and retain** .................. Walks it 4.8 km- <1 mUco) par bow*. Sampling and reading*........... Wilks at 4.8 km. <8 miles) per bow... Sampling and readings........ . 2 2 2 2 Perform 1 hour tr*t 2.1, or 4 times rtepet'tlfHy. 8 ft 3 8 4 f2t 8 12 18 2ft 2 12 2 18 2 22 2 2 8 18 18 282 108 K0ERAI RKISTfR. VOC 37. NO. S*--SATURDAY, MARCH IS. 1*73 rEN 6347 6256 ^ 1NMIP RUUS AND REGULATIONS Tau t--Dtnutma am Baqomca or Marie JLcmtntt roa Tiar 1, m lomnaa <M OFB Pot U, Bobpart H, 111.M, at aaq.) }mfaioMa | mlsataa 10 ndnnto Barrier Tlma-- Umlnnto 10mlnoio aimlaoto lhoa> l.laadtboara> Cltmbi nrtM MMiaciqnlnlMO............................................................................. 1....................... 1....................... 1..................... 1.' Crt a k*. (lo pound) wdfht orac............................................................................lttmalnl Itimulo* tttmolal MmolaU Itlmolaldmtnato. * Total tot tlma far Tot i far Miour, Matt, and MO IWWIM ta 1 boon. Treadmill dial! ba lneHnad If* from rartlcal and eparataa at a apdad at t loot Par Mcood. Tan* 1.--Danunow am Swimnc* or Sraanc Acittitjei roa Taat 1, la Mmtjtn cm CFB Fart 11, Bnbpart H, | I1.N, at aaq.) Aettrlty t mlouto imbmto lOmiooto Barrio tlmaUmlooto ttmlaato Maloato lhaar 1,1 and 4 boon' Sampling and raadlora......................... Bona at .7 km. (a mUaa) par boo......... 1................. --. 1...................... 1........................1....................... 1-...................... 1....................... L...................... FtUfaWk*. (4 pound) wjAt to I faat........................... Ubmotnl .......................... timolol W timolol M timolol mttmoiot mmata. mtantaa. mloutaa. mtnoto alaubi. UM OB MRaaa.................................... Uhan tank .. . .. .............. ... . ,Craarla oc banda and Vnaaa.................. :: l.::...;;:...: i...:............. : *...........--.----------------- *-...................... anpttor and taadlaaa.......................... i l ... ... . i ... .. l. ... tat; (ban partem tart Na. 1 far 1 boor apparatus. wompimj ioa NMiiip....................... Walkaat Ukm. OrnUlia) par boor___ Uaaaa rfda.......................................... Mo oa book.......................................... Sampling and readloci....................... . Totad taat tlma lor Tut I far Pfaaor, Moor; and Mate apparataa la 1 boor*. t::::::::::::: IT::::::::::::: HMtAl KMIfTfY. VOL 17. NO. S--SATUkOAY. MAtCN M, 1*T1 ^ t,|N 0J45 109 RULES AND REGULATIONS Tails 4.--Dgsitioh-ikd StQuixcft ov Brume Acttvihb* 701 Tin 4, m (m CFB Firt 11. Svbptft H, | UM, 1 q.) 6257 Aottrity srviotin*tmlantM IvtaatM lOmlnat## liminuU# SQmtauU# 46mlmit> 1 hoar Iboun I hours 4 hours Simpllnf and mdl&fi. ....... ................ .......... ................ 1 3............... 1. 2........ Parform test Walks at 4.8 km. (8 mJta) psrhour.......... ....................... ....................... 1. a........... 3. No. 1 for 302............ minute Apparatus; then perform Climbs verticil treadmill* (or equivalent). 1........... 1 1. i........... i. 1--......... test no. 4 tor 1-hour apparatus; Walks at 4.8 km. (3 mile#) par hour. 1........... 1 1 3...............3. than perform 2............... test No. 1 tor 30-min ute appara Fulls 20 kf- (48 pound) weight to 8............. feet. 30 tbn#* 30 time* 30 time* 80 Umes 80 times la 3 in 2 in 3 In 8 in 8 tus. 80 time# .................... . tn0 minute*. minute#. minute*. Walks at 4.8 km. (Smiles) par hour..... .................................. 1................. \................. minute#, minutes. \............... 2................. minutes. 3........................................ . Carries 23 kg. (80 pound) welgnt.......... ............. ................... . 1 time in 1 Urns In 2 times in 4time# in ..... ............... over overcast. 1 min 1 min- 3 min 8 min Sampling and readings........................*.......................... ute. 3................................. 2..u.t.e........ 2...u.t.e.s........ 2.u..te..s...................... . Walks at 4.8 km. (Smiles) per hour.................. ................................... 1............... Runs at 9.7 km. (Smiles) per hour................ \___...... 1............... 1................. 31..........................3.1........................... 41......................................................................... Carries 23 kf. (50 pound) weight over........ ............. ............. I time in l time In 2 times in 4 times in 8 times In ,........... ......... overcast. 1 min- 1 min 3 min- 8 min 9 min ute. ute. utes. utes. utes. Pulls 20 kg. (48 pound) weight to 8 18 times ................................... - 1$ times /eat. in 1 in 1 80 times 30 times In 5 in 2 38 time* ............. .......... in 3 minute. minute. SamplJiig and readings.......................................................................... 2___...... minutes, minutes. 2...............2................. 2.m..i.n.u..te..s.................. .................. 2............... 8........................................ Pulls 20 kg. (46 pound) weight to 6 toet. ............. .. 80 times 60 times ........................ in 0 In 6 minutes. minutes. Carries 20 kg. (48 pound) weight and .................. 3............. 3........................................ walks at 4.8 km. (3 miles) per hour. 8empling and readings..................... 2.............. 2. Perform test No. 1 tor 1hour appara tus; than per form test No. 4 for 1hour appara tus; than per form test No. 1 for 1-hour apparatus. Perform test No. 1 tor 1hour appara tus; than per form test No. 4 tqr 1hour appara tus; then per form test No. 1 tor 1hour appara tus twice (l.e., two one-hour tests). i Treadmill shall be Inclined 16* Irom Vertical and operated *t t -`peed of 30 cm. (1 foot) per second Subpart I--Gas Masks 11.90 G*s mask*; description. Maximum ute concentration, per cent by volume (a) Gas masks Including all com pletely assembled air purifying masks which are designed for use as respiratory protection during entry into and escape or escape only from hasardous atmos pheres containing adequate oxygen to support life are described as follows: (1) Front-mounted or back-mounted gas mask. A gas mask which consists of a full facepiece, a breathing tube, a canister at the front or back, a canister harness, and associated connections. (2) Type "N" front-mounted or backmounted gas mask. A gas mask specif ically designed to protect against add gases, ammonia, carbon monoxide, or ganic vapors, and particulate contami nants which consists of a full facepiece, breathing tube, a canister at the front or back, a-canister harness, and asso ciated connections. (3) Chin-style gas mask. A gas mask which consists of a full facepiece, a can ister which is usually attached to the facepiece, and associated connections. (4) Fscape gas mask. A gas mask de signed for use during escape only from hazardous atmospheres which consists ol a halt-mask facepiece or mouthpiece, a canister, and associated connections. <b) Gas masks shall be further de scribed according to the specific gases or vapors against which they are designed to provide respiratory protection, as follows: Type of front-mounted or back- monnted gas mssk: Acid gas Ammonia * ______________________ Carbon monoxide *_________ Organic vapors *............................. *3 3 3 `3 Maximum ute concentration, per cent by volume Type ol chln-etyle gax mask: Add gae * * * 0.1 Ammonia ...____________________ Organic vapors ....... ........... .......... .5 Maximum use concentration, partt per million Type of eecape gaa meek: Add gaa*-**............... .................. Ammonia * Carbon monoxide_____________ Organic vapora ' * *5,000 *1,000 5, ooo 10,000 Approval may be for acid gaeea or organic vapora aa a dam or for apaciflo add gasaa, ammonia, or organic vapora. Approval may alao be granted for comblnatlona of add gaeee. orgaplc vapora, and other gaeea and vapora. Not for uee agalnrt acid gaaaa or organic vapora with poor warning properties or which generate high beats of reaction with sor bent materials in the canister. ' Suggested maximum use concentrations are lower than these for some add gaaaa and organic vapora. ' Cye protection may be required in certain concentrations of acid gaeee. ammonia, and organic vapors. (c) Gas masks for respiratory protec tion against gases and vapors other than those specified in paragraph (b) of this section may be approved. The applicant shall submit a request for approval, In writing, to the Bureau of Mines, Approval and Testing, 4800 Forbes Avenue, Pitts burgh, PA 15213, listing the gas or vapor and suggested maximum use concentra tion for the specific type of gas mask. The Bureau and the Institute will con sider the application and accept or reject the application on the basis of effect on the wearer's health and safety and any field experience In use of gas masks for such exposures. If the application Is ac cepted the Bureau will test such gas mask In accordance with the requirements of this subpart. 11.91 Ga* masks; required compo nents. (a) Each gas mask described in 111.00 shall, where Its design requires, contain the following component parts: (1) Facepiece or mouthpiece and nosedlp; (21 Canister or cartridge; (3) Canister harness; (4) External check valve: and (5) Breathing tube. (b) The components of each gas mask shall meet the minimum construction re quirements set forth in Subpart G of this part. 110 MDUM UOISTH, VOL 37, NO. 59--SATURDAY, MARCH 35, 1973 TEN 6349 6258 RULES AND REGULATIONS S 11.92 Canister* and MrtridiM in pr- II slid; resistance requirements, ' Where two or more canisters or car tridges are used in parallel, their resist ance to airflow shall be essentially equal. S 11.93 Canister* and cartridge*; color and marking*; requirement*. The color and markings of all can isters and cartridges or labels shall con form with the requirements of the Ameri can National Standard for Identification of Oas Mask Canisters, K13.1. obtainable from American National Standards In stitute, Inc., 1430 Broadway, New York, NY 10018. 8 11.94 Filter* u*ed with canister* snd cartridge*; location; replacement. (a) Particulate matter filters used In conjunction with a canister or cartridge shall bo located on the Inlet side of the canister or cartridge. <b) Filters shall be incorporated in or firmly attached to the canister or car tridge and each filter assembly shall, where applicable, be designed to permit Its easy removal from and replacement In the canister or cartridge. S 11.95 Breathing tube*; minimum re- (a)quFirleemxibenlet*.breathing tubes used In conjunction with gas masks shall be de signed and constructed to prevent; (1) Restriction of free head move ment; (2) Disturbance of the fit of facepieces mouthpieces; (3) Interference with the wearer's activities,- and, (4) Shutoff of airflow due to kinking, or from chin or arm pressure. S 11.96 Harne****; iiutallatiotv and con- (ruction; minimum requirement*. (a) Each gas mask shall, where necessary, be equipped with a suitable harness designed and constructed to hold the components of the gas mask In posi tion against the wearer's body. (b) Harnesses shall be designed and constructed to permit easy removal and replacement of gas mask parts, and where applicable, provide for holding a full facepiece in the ready position when not In use. S 11.97 Ga* mask container*; minimum requirement*. (a) Oas masks shall be equipped with a substantial, durable container bearing markings which show the applicant's name, the type and commercial dedgnatton of mask it contains and all appro priate approval labels. (b) Containers for gas masks shall be designed and constructed to permit easy removal of the mask. 8 11.98 Half-mask facepiece*, full facepiece* and mouthpieces; fit; mini mum requirements, (a) Half-mask facepieces and full fuepleces shall be designed and con ducted to fit persons with various facial Wipes and sizes either; (1) By provid ing more than one facepiece size, or (2) by providing one facepiece size which will fit varying facial shapes and sizes. (b) Full facepieces shall provide for optional use of corrective spectacles or lenses, which shall not reduce the respi ratory protective qualities of the gas mask. (c) Half-mask facepieces shall not in terfere with the fit of common industrial safety spectacles, as determined by the Bureau's facepiece tests in 111.102-3. <d) Oas masks with mouthpieces shall be equipped with nosedlps which are securely attached to the mouthpiece or gas mask and provide an airtight seal. (e) Facepieces shall be designed to prevent eyepiece fogging. 11.99 Facepiece*; eyepieces; minimum requirement*. (a) Full facepieces Shall be designed and constructed to provide adequate vision which Is not distorted by the eye piece. (b) All eyepieces shall be designed and constructed to meet the Impact and penetration requirements specified In Federal-Specification, Mask, Air line: and Respirator, Air Filtering, Industrial, GOG-M-125d. October 11, 1965. $ 11.100 Inhalation and exhalation valve*; minimum requirement*. (a) Inhalation and exhalation valves shall be provided where necessary and protected against damage and distortion. (b) Inhalation valves shall be designed and constructed to prevent excessive ex haled air from adversely affecting car tridges, canisters, and filters. (c) Exhalation valves shall be pro tected against external Influence, and designed and constructed to prevent In ward leakage of contaminated air. 11.101 Head htrneuei; minimum re quirement*. (a) Facepieces shall be equipped with adjustable and replaceable head har nesses, designed and constructed to pro vide adequate tension during use and an even distribution of pressure over the entire area in contact with the face. (b) Mouthpieces shall be equipped, where applicable, with adjustable and replaceable harnesses designed and con structed to hold the mouthpiece In place. 8 11.102 Gat mask*; performance re quirements ; general. Gas masks and the Individual com ponents of each such device shall, as appropriate, meet the requirements for performance and protection specified tn the tests described In if ll.102-1 through 11.102-5. 8 11.102-1 Breathing resistance teat; minimum requirements. <a) Resistance to airflow will be meas ured In the facepiece or mouthpiece of a gas mask mounted on a breathing ma chine both before and after each test conducted In accordance with If 11.102- 3, 11.102-4, and 11.102-5, with air flow ing at a continuous rate of 85 liters per minute (b) The maximum allowable resist ance requirements for gas masks are as follows: Maxtmoh RinsTiNCx (bub. ntor-ooltzma bslgbt) Typ* of gas mask Iabtladon -------------- Eib*. Ini* final' latlon Ual Tront-mounted or back-mounted (without particulate Alter)........... front-mounttd or back-mounted (with approved particulate Sltor)................................. Chln-eiyle (without particulate alter)............................................. Cblnstyte (with approved partic ulate alter).................................... K*capa (without particulate alter).. Vscape (with approved particulate alter)..........'............................ (0 70 40 44 40 70 74 30 84 30 44 30 80 30 74 30 86 X > Measured at end o( the service life specified In Teblee 1,6, and 7. 8 11.102--2 Exhalation valve leakage test. (a) Dry exhalation valves and valve seats will be subjected to s suction of 25 mm. water-column height while In a normal operating position. (b> Leakage between the valve and valve seat shall not exceed 30 milliliters per minute. 8 11.102-3 Facepiece teal*; minimum (equinemen in. (a) The complete gas mask will be fitted to the faces of persons having varying facial shapes and sizes. (b) Where the applicant specifies a facepiece size or sizes for the gas mask, together with the approximate measure ments of faces they are designed to fit. the Bureau will insure that test subjects suit such facial measurements. (c) Any gas mask parts which must be removed to perform the facepiece or mouthpiece fit teet shall be replaceable without special tools and without dis turbing the facepiece or mouthpiece fit, (d) Ihe facepiece or mouthpiece fit test, using positive or negative pressure recommended by the applicant and de scribed in bis instructions will be used before each test specified in paragraph (e) of this section, and in f 11.102-4. <e> U) Each wearer will enter a cham ber containing 100 p.pjn. Isoamyl acetate vapor for a half-mask facepiece and 1,000 p.p.m. isoamyl acetate vapor for a full facepiece or mouthpiece. (2) The facepiece or mouthpiece may be adjusted, if necessary, In the test chamber before starting the tests. (3) Each wearer will remain In the chamber for 8 minutes while performing the following activities: (1) Two minutes, nodding and turn ing head; (U) Two minutes, callsthenlc arm movements; (111) Two minutes, running In place, and (lr) Two zglnutes, pumping with a tiro pump Into a 28 lita- (l cubic foot) con tainer. (4) Each wearer shall not detect the odor of Isoamyl acetate during the test. rEN 6350 Ill (COMAL MClSTfk, VOL. 27, NO. 5*--SATUtOAY, MARCH 25, 1*71 .RULES AND REGULATIONS 6259 | 11.102-4 Dust, fume, tuUt, and amoke Tasia IMU| unlum containing filter*) witilwnm r*quimncnl*. Carom* Bases Tam ajto HsqtnaiMxnm roa tsomi and BaciMoontxd Oa* Maas Cirons* (*6 CFB Part 11, Subpart I, | lUOO-f) (a) Oas mask canisters containing niters for protection against dusts, fumes, mists, and smokes In combination with gases, vapors, or gases and vapors, will be tested as prescribed In f 11.140. (b) Gas mask canisters designed for protection against smokes will be tested in an atmospheric concentration of 100 micrograms of dioctyl phthalate per liter of air at continuous flow rates of (1) 32 liters per minute, and (2) 85 liters per minute for a period of 5 to 10 seconds, and the OOP leakage through the canis ter shall not exceed 0.03 percent of the test concentration. S 11.102-5 Canister bench teats; mini mum requirement*. (a) (1) Bench tests, exoept for carbon monoxide tests, will be made on an ap paratus that allows the test atmosphere at 50 5 percent relative humidity and room temperature (25*2.5* C.) to enter the canister continuously at concentra tions and rates of flow specified in Tables 5, 8, and 7. (2) Three canisters will be removed from containers and tested as received from the applicant. (3) Two canisters, other than those described in paragraph (a)(2) of this section, will be equilibrated at room tem perature by passing 25 percent relative humidity air through them at 64 liters per minute for 8 hours. (4) Two canisters, other than those described in paragraphs (a) (3) and (3) of this section, will be equilibrated at room temperature by passing 85 percent relative humidity air through them at 84 liters per minute for 6 hours. (5) The equilibrated canisters will be resealed, kept In an upright position at room temperature, and tested within 18 hours. (b) Front-mounted and back-mounted gas mask canisters will be tested and shall meet the minimum requirements set forth in Table 5. (c) (1) Front-mounted and backmounted canisters designated as Type N canisters shall have a window or other Indicator to warn the gas mask wearer when the canister will no longer satis Canlatar typa Tet eoodlttoa Taat atmoapbara 0*1 or upor Concentra tion, p.pjn. P)ow rate, Ipjm. allowable Minimum Norn bat penetra arrioa of tion, life, teal te p.p.m. minute, i Acid (a*............... Cl* NO* Equilibrated.......... .. SO. Cl* Organic report... A mtviPml* NO* .. CC1, Equilibrated.......... .. ecu Equlllbrmtdrw___,, .. NH, CvbOQ monoxide. a. AirocelTed. .. CO CO CO TypaN............... .. SO* Cl* NO* cq, NH, CO CO CO Equilibrated.......... .. so* Cl, NO CCU NH* 90.000 04 1 * 90,000 (4 S * 90,000 04 1 1 90,000 12 4 ( 20,000 S3 4 t 90,000 99 4 ft 90.000 20.000 04 * as 4 * a 90,000 04 1 40 90,000 IS 4 W 20,000 6.000 9,000 04 IS IS 50 9 ffl *m 90,000 04 i * 29.000 04 S 0 90,000 04 1 0 90,000 04 1 1 30.000 04 * *0 20.000 t,ooo **4 IS ** M 3,000 90,000 IS as * 41 90.000 20; ooo 99 4 99 4 0 1 90,000 93 4 i 30)000 99 4 SO 12 12 13 12 12 IS 12 13 IS 12 00 0e0o e 0 0 00 00 0f0ffffttttt Minimum Uf trill b* determined it tba Indicated penetration. > S*l*Sn humidity of ta*t atmoapbart trill ba ft=fc* percent; tamparatura of taat atmoapban wRl ba 9*9.rC. * Maximum allowable CO panatratlou will ba 3SS oe, during tba mlntmom Ilia. Tha penetration h-n not asoaad 500 p.p.m. during tbll tlma. 1 ttalattra humidity of taat atmoapbara will bo M9 percent; tamparatura of taat atmoapbart entering tba taat flxtura will ba Of 2.5* C.-V C. Tabli a.--Canute* Bench Tiara and RiQbiazmNU roa CarSmt Gab Ma*i Caxiatai* (M CFR Part 11, Subpart 1,111.109-*) Canlatar typa Taat condition Ttat atmoapbara Mattwm-- ------------------------------------------------ Numbar allowsbla Minimum Oa* Concentre- Plow of tup. fRU af paneoa- aartioa taitt Hell 148|_ sapor p.p.m. l.p-tn. p.pjn. mlnutaa Addin.................... liwdrad....................SO* Sft. Equilibrated............... SO* Organic vapon......... Aj received..................... CCU Equlltbratad................ CClt Ammonia................. Arroeafrad...................NHi Equlllbratad................. NH* *,000 5,000 *,ooo 5,000 5,000 8,000 *,000 ft, ODO *,ooo *,ooo 04 9 4 9 *4 9 *9 4 *9 4 99 04 4 9 99 4 M9 93 4 1 < fst 6ft f1t <0 10 13 22 12 22 22 12 12 12 12 12 Minimum Ilia trill ba determined at tba Indicated penetration. Tabli 7.--Canibtib Behck Taat* ass BtquiBtMXNT* roa Escats Oa* Mass Canuteij (SO CPB Part 11, Subpert 1,111.109-*) factorily remove carbon monoxide from the Inhaled air. (2) Other types of front- and backmounted canisters may also be equipped Canlatw typa Taat condition Taat atmoapbara Ou or Opel Concentra Flow tion, rate, p.p.m. Lp-m. at teat* allowable penetra tion, p.p.m. Minimum arrioa UN, mlnutea 1 with a window or other Indicator to warn of imminent leakage of other gases or Add (a*................. . A* racalra*............ ... so* Cl* (.000 Lino *4 9 M1 ft vapors. (3) The window Indicator canlgters will be tested as regular canisters, but shall show a satisfactory Indicator Equilibrated......... ... Organic report........ . A* received............. ... Equilibrated.......... ... NO* SO* Cl* NO* ecu CCU A 000 i 000 4,600 A 000 A 000 A ooo 04 93 1 4 39 4 IS 4 04 1 93 4 A ft ft ft ft ft change or other warning before the allowable canister penetration has occurred. Ammonia............... . Aa raoalrad............. ... Equlllbratad.-.----- ... Carbon moooxld*.. . Aa received............. ... NH* NH, CO CO CO 5,000 5,000 14000 A5,0o0o0o 04 91 93 >13 IS 1 A0 4 *0 9 9 m 9 13 IS 12 22 12 12 12 12 12 *IS0 ftO 00 (d) Chin-style gas mask canisters shall meet the minimum requirements set forth In Table 6. (e) Escape gas mask canisters shall meet the minimum requirements set forth in Table 7. Minimum life wfll ba determined at tba Indicated penateattea. * Balatlv* humidity of tact atmoapbara will ba MAA percent; temperatore at teat ataooapfaare trill ba XA2-T C1 Maximum allowable CO penetration trill ba JS* oa. dnrtnc tba mtntmom da. Tba pOMa aball not aaaoad m0p.p.rn. during tbla tlma. * If etBoeot tamparatura aacoada 10IP C. durina tbte teat, tba aaoapa yaa meek *haU ba equipped with eo eOaoUta btAt nobA&ftf. * Ratal!v, humidity of taat atmoapbart will ba 8*1 pteeant; tempwatun at teat atmoapbara entering a* taat fixture will ba 0+1.V C. --0" C. 112 No, 50--Pt. n NOCKAA RCOISTH, VOL 37, NO. 5--4ATUIDAY, MAfiCH 25, 1972 l'EN f)351 RULES AND REGULATIONS "gas ' *_S,,ppl!d-Aif Respirators do not unduly Interfere with the wearer's (c) Hoods and helmets shall be de vision and permit easy access to the ex signed and constructed tt> flt persons SappHed-sir respirators; de- ternal surface of such window (s) for with various head sizes., provide for the cleaning. optional use of corrective spectacles or .&ir respirator*. Including assembled respirators de- - me as respiratory protection '^V Into and <*Pe from gjinospheres are described as 8 11,111 Supplied-air respirators; re quired components. (a) Each supplled-air respirator de scribed In 1 11.110 shall, where Its design requires, contain the following compo lenses, and Insure against any restriction of movement by the wearer. (d) Facepieces, hoods, and helmets shall be designed to prevent eyepiece fogging. "A" ruppUed-air respirators. *k respirator, lor entry Into from hazardous atmospheres, of a motor-driven or blower that permits the of air when the blower is , a strong large-diameter a low resistance to airflow, a .which the hose and the lifeattached and a tight-fltting nent parts: (1) Facepiece, hood, or helmet; (2) Air supply valve, orifice, or de mand or pressure-demand regulator; (3) Hand operated or motor driven air blower; (4) Air supply hose; (5) Detachable couplings; (6) Flexible breathing tube; and (7) Respirator harness. (b) The component parts of each 8 11.116 Facepieces, hoods, and hel mets; eyepieces; minimum require ments, (a) Facepieces, hoods, and helmets shall be designed and constructed to pro vide adequate vision which is not dis torted by the eyepiece. Cb) All eyepieces except those on Types B, BE, C, and CB supplied-air respirators shall be designed and con structed to meet the Impact and pene >X" supplied-air respira- supplled-air respirator shall meet the tration requirements specified in Federal "A" supplled-air respirator minimum construction requirements set Specification, Mask, Air line, and Res additional devices designed forth In Subpart G of this part. pirator, Air Filtering, Industrial GOO- wearer's head and neck -t and abrasion from re 11.112 Breathing tubes; minimum re quirements. M-125d, October U, IMS, <c) (1) The eyepieces or AZ, BE. and ive material, and with __ l such as plastic, glass, sheet metal, or other suitable fprotect the wlndow(s) of "fs, and helmets which do ^interfere with the wearer's permit easy access to the ex ilic* of such wlndow(s) for (a) Flexible breathing tubes used in conjunction with supplied-air respirators shall be designed and constructed to jfrevent: (1) Restriction of free head move ment; (2) Disturbance of the fit of facepieces, mouthpieces, hoods, or helmets; CE type supplled-air respirators shall be shielded by plastic, glass, worm wire, sheet metal, or other sultaMe material which does not Interfere with the vision of the wearer. (2) Shields shall be mounted and at tached to the facepiece to provide easy access to the external surface of the eye piece for cleaning. mB" supplied-air respirators. respirator, tor entry Into '.from atmospheres not lm- - dangerous to life or health, of a strong large- with low resistance to alrwhlch the user draws by means of his lungs alone, .to which the hose Is attached, fitting facepiece. "BE" supplied-air respira*B" supplled-air respirator ith additional devices de~ ct the wearer's head and .Impact and abrasion from abrasive materia!, and with erlal such as plastic, glass, "eet metal, or other suit- to protect the wlndow(s) hoods, and helmets which <3) Interference with the wearer's ac tivities: and (4) Shutoff of airflow due to kinking, or from chin or arm pressure. 8 11.113 Harnesses; installation and construction; minimum require ments. (a) Each supplled-air respirator shall, where necessary, be equipped with a suitable harness designed and con structed to hold the components of the respirator In position against the wear er's body. <b> Harnesses shall be designed and constructed to permit easy removal and replacement of respirator parts, and where applicable, provide for holding a full facepiece In the ready position when not In use. 8 11.117 Inhalation and exhalation valves; check valves; mhlmam re quirements, (a) Inhalation and exhalation valves shall be provided where necessary and protected against distortion, (b) Exhalation valves shall be: (1) Protected against damage tad ex ternal influence: and (2) Designed and constructed to pre vent inward leakage of contaMtuted air. (c) Check valves designed and con structed to allow airflow toward the face- piece only shall be provided fee Cbe con nections to the facepiece or J* the hose fitting near the facepiece of Type A, AE, B, and BE supplled-air amptrators. g 11.118 Heed harnesses; --Vriiain re quirement*. ' Interfere with the wearer's permit easy access to the furface of such wlndow(s) for _**C" supplied-air respirators. respirator, for entry into and _ atmospheres not lmmedl- ous to life or health, which a source of respirable breath- 11.114 Respirator container*; mini mum requirement*. Supplled-air respirators shall be equipped with a substantial, durable con tainer bearing markings which show the applicant's name, the type and commer cial designation of the respirator It con tains, and all appropriate approval labels. Facepieces shall be equipped with ad justable and replaceable head fanuasec which are designed and contacted to provide adequate tension during me, and an even distribution of preens* over the entire area In contact with the face. 11,119 Hed and neek prvtntM; sup. plied-air respirators; mwinsam re * hose, a detachable coupling, 11.115 Half-mask facepiece*, full quirements. y*^>ve. orifice, a demand valve v demand valve, an arrange.^attaching the hose to the a facepiece, hood, or helmet, "CE" supplied-air respira- **** *!p" supplied-air respirator i with additional devices de- facepieces, hoods, and helmets; fit; minimum requirements. (a) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial shapes and sizes either (1) by providing more than one facepiece size, or (2) by Type AE, BE, and CE stpcttto-air respirators shall be designed md con structed to provide protection against impact and abrasion from muwmsdSxig abrasive materials to the wearo** bead and neck. Ptotect the wearer's head and *t impact and abrasion from m*trial, and with providing one facepiece size which will flt varying facial shapes and sizes. <b) Full facepieces shall provide for 11.120 Air velocity and oem levels; hoods and helmets; wwsua re quirements. ateriai such as plastic, glass, optional use of corrective spectacles or toetal, or other suit- lenses, which shall not reduce the res Noise levels generated by aspira 1 v *lrotect the wlndow(s) piratory protective qualities of the tor will be measured Inside fee fend or hoods, and helmets which respirator. helmet at maximum airflow mutable 113 FEDERAL REGISTER, VOl. 37, NO. 59--SATURDAY, MARCH 35, 1972 lUiN W3Z RULES AND REGULATIONS 6261 within pressure and boss length require minute through each completely as These are used to facilitate timing. To ments and shall not exceed 80 dBA. 6 11.121 Breathing gas*, minimum re quirement*. sembled respirator. Each respirator shall be equipped with the maximum length of hose with which the device is to be ap proved and the hose shall be connected determine the torque or horsepower re quired to operate toe blower, toe drum Is started to rotation manually at or slightly above the speed at which toe (a) Breathing gas used to supply sup- to each blower or manifold outlet de power measurement Is to be made. The plled-alr respirators shall be respirable signed for hose connections. blower Is then permitted to assume con breathing air and contain no less than (b) The crank speed of the hand- stant speed, and then as the first mark 19.5 volume-percent of oxygen. operated blower shall not exceed 50 on the wire leaves the drum, a stopwatch (b) Compressed, gaseous breathing air revolutions per minute to order to de Is started. The watch Is stopped when shall meet the applicable minimum grade liver the required 50 liters of air per the second mark leaves toe drum. From requirements for Type I gaseous air set minute to each facepiece. these data the foot-pounds per minute forth in the Compressed Oas Associa (c) The power required to deliver 50 and the torque may be calculated. tion Commodity Specification for Air, 0-7.1 (Orade D or higher quality). (c) Compressed, liquefied breathing air shall meet the applicable minimum grade requirements for Type H liquid air set forth In the Compressed Oas Association Commodity Specification for liters of air per minute to each wearer through the maximum length of hose shall not exceed one-fiftieth horsepower, and the torque shall not exceed a force of 2.3 kg. (5 pounds) on a 20 cm. <8-lnch) crank, as defined to 111.124-3. (d) The blower shall operate through 11.124-4 Type B supplied-air respira tor; minimum requirements. No Type B supplied-air respirator shall be approved for use with a blower or with connection to an air supply de vice at positive pressures. Air, 0-7.1 (Orade B or higher quality). out the period without failure or indica S 11.124--5 Type C supplied-air respira 11.122 Air supply source; hand-oper ated or motor driven air hlowers; tion of excessive wear of bearings or other working parts. tor, continuous flow class; minimum requirement*. Type A supplied-air respirators; min- 11.124--2 Motor-operated blower test; (a) Respirators tested under this sec haunt requirements. minimum requirement** tion shall be approved only when they (a) Blowers shall be designed and constructed to deliver an adequate amount of air to the wearer with either direction of rotation, unless constructed to permit rotation in one direction only, and to permit the free entrance of air to the hose when the blower is not operated. (b) No multiple systems, whereby more than one user Is supplied by one blower, will be approved, unless each hose line Is connected directly to a manifold at the blower. $ 11.123 Terminal fillings or chambers; Type B supplied-air respirators; min imum requirements. (a) Motor-operated blowers shall be supply respirable air at the pressures tested by operating them at their speci and quantities required. fied running speed 6 to 8 hours dally for (b) The pressure at the Inlet of the a period of 100 hours when assembled hose connection Shall not exceed 863 with the kind and maximum length of hose for which the device la to be ap kN/m*. gage). (125 pounds per square Inch proved and when connected to each blower or manifold outlet designed for (c) Where the pressure at any point to the supply system exceeds 863 kN/m.' hose connections (125 pounds per square Inch gage), toe (b) . The connection between the motor and the blower shall be so constructed that the motor may be disengaged from the blower when the blower is operated by hand. respirator shall be equipped with a pres sure-release mechanism that will prevent the pressure at the hose connection from exceeding 883 kN/m.1 (125 pounds per square Inch gage) under any conditions. (c) The blower shall operate through S 11,124--6 Type C supplied-eir respira out the period without failure or Indica tor, demand and prestare demand (a) Blowers or connections to air supplies providing positive pressures shall not be approved for use on Type B supplled-air respirators. (b) Terminal fittings or chambers employed In Type B supplied-air respi rators, shall be: (1) Installed to the inlet of the hose; (2) (designed and constructed to pro vide for the drawing of air through cor rosion resistant material arranged so as to be capable of removing material larger than 0.149 mm. to diameter (149 mi crometers, 100-mesh, U.S. Standard sieve). (3) Installed to provide a means for fastening or anchoring the fitting ox chamber to a fixed position in a zone of respirable air. 11.124 Supplied-air respirator*; per tion of excessive wear of bearings or other working parts. (d) Where a blower, which Is ordi narily motor driven, Is operated by hand, the power required to deliver 50 liters of air per minute to each wearer through the maximum length of hose shall not exceed one-fiftieth horsepower, and the torque shall not exceed a force of 2.3 kg. (5 pounds) on a 20 cm. (8-toch) crank, as deftoea to f 11.124-3. (e) Where the respirator Is assembled with the facepiece and 15 m. <50 feet) of the hoee for which It Is to be approved, and when connected to one outlet with all other outlets closed and operated at a speed not exceeding 50 revolutions of the crank per minute, the amount of air delivered toto the respiratory-inlet cov ering shall not exceed 150 liters per minute. claaa; minimum requirement*. (a) Respirators tested under this sec tion shall be approved only when used to supply respirable air at the pressures and quantities required. (b) The manufacturer shall specify the Tange of air pressure at toe point of attachment of the air-supply hose to toe alr-supply system, and toe range of hose length for the respirator. For example, he might specify that the respirator be used with compressed air at pressures ranging from 280-550 kN/m.' (40 to 80 pounds per square Inch) with from 6 to 76 m. (IS to 250 feet) of alr-supply hose. (c) The specified air pressure at the point of attachment of the hose to the alr-supply system shall not exceed 833 kN/m.' (125 pounds per square inch gage). (d> (1) Where the-pressure In toe air- formance requirements; general. 11.124--3 Method of measuring the supply system exceeds 863 kN/m.' (125 Supplled-atr respirators and the In dividual components of each such device shall, as appropriate, meet the require ments for performance and protection specified to the tests described to If 11.124-1 through 11.124-24. S 11.124--1 Hand-operated blower teat; minimum requirements. power and torque required to operate Mower*. As shown to Figure 1, the blower crank Is replaced by a wooden drum, a (13 cm. (5 Inches) In diameter Is convenient). This drum Is wound with about 12 m. (40 feet) of No. 2 picture cord, b. A weight, c, of sufficient mass to rotate the blower at the desired speed Is suspended from pounds per square Inch gage), the res pirator shall be equipped with a pres sure-release mechanism that will pre vent the pressure at the point of attach ment of the hose to the alr-supply sys tem from exceeding 863 kN/m.' (125 pounds per square Inch gage). (2) The pressure-release mechanism shall be set to operate at a pressure not (a) Hand-operated blowers shall be this wire cord. A mapk is made on the more than 20 percent above the manu tested by attaching them to a mechanical cord-about 3 to 4.5 m. (10 to 15 feet) facturer's highest specified pressure. For drive and operating them 6 to 8 hours from the weight, c. Another mark Is example. If the highest specified pres dally for a period of 100 hours at a speed placed at a measured distance (6-9 m./ sure Is 863 kN/m.' (125 pounds per square necessary to deliver 50 liters of air per 20-30 feet Is convenient) from the first. Inch), the pressure-release mechanism 114 HDIRAL IMISTIt. VOl. 37. NO. 59--SATURDAY, MARCH IS, 1971 TEN 6353 6262 RULES AND REGULATIONS would be set to operate at a maximum of against closing off by kinking or by chin g 11.124--12 Airflow resistance lest; 1,035 kN/m.' <150 pounds per square or arm pressure, and they shall not create Type C supplied-air respirator, con- Inch). a pull that will loosen the facepiece or tinuous flow class and Type CE S H.124--7 Air-supply line lean; mini mum requirement!. Air supply lines employed on Type A, Type B, and Type C suppUed-air respi rators sha'l meet the minimum test re quirements set forth in Table 8. disturb the wearer. (b) Breathing tubes employed on Type C supplied-alr respirators of the con tinuous flow class shall meet the mini mum requirements set forth In paragraph (a) of this section, however, an exten sion of the connecting hose may be em supplied-air respirator; minimum re quirements. The resistance to air flowing from the respirator shall not exceed 25 mm. (1 Inch) of water-column height when the air flow into the respiratory-Inlet cover ing Is 115 liters (4 cubic feet) per minute. 11.124--8 Hamcu teat; minimum re quirements. <a) (l) Shoulder straps employed on Type A supplied-alr respirators shall be tested for strength of material. Joints, and seams and must separately with stand a pull of 113 kg. (250 pounds) for 30 minutes without failure. <2) Belts, rings, and attachments for life lines must withstand a pull of 136 kg. <300 pounds) for 30 minutes without failure. ployed In lieu of the breathing tubes required. (c) (1) A flexible, nonkinking type breathing tube shall; (l) Be employed on Type C supplied-alr respirators of the demand and pressure-demand class; and (11) extend from the facepiece to the de mand or pressure-demand valve, except where the valve Is attached directly to the facepiece. (2) The breathing tube shall permit free head movement, insure against clos g 11.124--13 Airflow resistance test; Type C supplied-air respirator, de mand class; minimum requirements. (a) Inhalation resistance shall not ex ceed 50 millimeters (2 Inches) of water at an air flow of 115 liters (4 cubic feet) per minute. (b) The exhalation resistance to a flow of sir at a rate of 85 liters (3 cubic feet) per minute shall not exceed 25 milli meters (1 inch) of water. (3) The hose shall be firmly attached ing off by kinking or by chin or arm pres 11.124--14 Airflow resistance teat; to the harness so as to withstand a pull sure, and shall not create a pull that will Type C supplied-air respirator, pres of 113 kg. (250 pounds) for 30 minutes loosen the facepiece or disturb the sure-demand ela<s; minimum re without separating, and the hose at wearer. quirements. tachments shall be arranged so that the pull or drag of the hose behind an ad vancing wearer does not disarrange the harness or exert pull upon the facepiece. (4) The arrangement and suitability f all harness accessories and fittings will be considered. (b) (1) The harness employed on Type B supplied-alr respirators shall not be uncomfortable, disturbing, or interfere with the movements of the wearer. (2) The harness shall be easily adjust able to various sizes. (3) The hose shall be attached to the harness In a manner that will withstand xa pull of 45 kg. (100 pounds) for 30 min- 11.124--10 Airflow resistance test. Type A and Type AE supptied-sir res pirator*; minimum requirements. (a) Airflow resistance will be deter mined when the respirator is completely assembled with the respiratory-inlet covering, the air-supply device, and the maximum length of air-supply hose coiled for one-half its length in loops 1.5 to 2.1 m. (5 to 7 feet) In diameter. (b) The Inhalation resistance, drawn at the rate of 85 liters (3 cubic feet) per minute when the blower is not operating or under any practical condition of blower operation shall not exceed the (a) The static pressure in the facepiece shall not exceed 38 mm. (1.5 inches) of water-column height. (b) The pressure in the facepiece shall not fall below atmospheric at tnh&latlon airflows less than 115 liters (4 cubic feet) per minute. <c) The exhalation resistance to a flow of air at a rate of 85 liters (3 cubic feet) per minute shall not exceed the static pressure In the facepiece by more than 51 mm. (2 Inches) of water-column height. $11,124-15 Exhalation vtil.c leakage lest. futes without separating or showing signs following amounts: (a) Dry exhalation valves and valve of failure. seats will be subjected to a suction of 25 (4) The design of the harness and Minimum Itncth oI hoM Maximum nsIaUnes, mm. water-column height while in a nor attachment of the line shall permit drag ging the maximum length of hose con for which nsplrstor Is approved wttsr column hclfhi mal operating position. (b) Leakage between the valve and sidered for approval over a concrete floor valve seat shall not exceed 30 milliliters without disarranging the harness or Feet Meiers locha Mtlllmetsn per minute. exerting a pull on the facepiece. (5) The arrangement and suitability of all harness accessories and fittings will be considered. 76 a l.ft 39 ISO 46 2, A 64 230 76 3.6 89 MO M 4.0 :oj (c) The harness employed on Type C respirators shall be similar to that re (c) The exhalation resistance shall not quired on the Type B respirator, or, it exceed 25 mm. (1 Inch) of water-column may consist of a simple arrangement for height at a flow rate of 85 liters (3 cubic attaching the hose to a part of the wear feet) per minute when the blower Is not er's clothing in a practical manner that operating or under any practical condi prevents a pull equivalent to dragging tion of blower operation. the maximum length of the hose over a concrete floor from exerting pull upon the respiratory-inlet covering. (d> Where supfrlled-alr respirators have a rigid or partly rigid head covering, a suitable harness shall be required to assist in holding this covering In place. 911.124--11 Airflow resistance test; Type B and Type BE supplied-alr res pirators; minimum requirements. (a) Airflow resistance shall be deter mined when the respirator is completely assembled with the respiratory-inlet covering and the hose in the maximum $11,121--16 Man tests for gases and vapors; supplied-alr respirators; gen eral performance requirements. (a) Wearers will enter a chamber con taining a gas or vapor as prescribed In 11 11.124-17, 11.124-18, 11.124.19. and 11.124-20. <b) Each wearer will spend 10 minutes In work to provide observations on free dom of the device from leakage. The freedom and comfort allowed the wearer will also be considered. (c) Time during the test period will be divided as follows: (1) Five minutes. Walking, turning head, dipping chin; and (2) Five minutes. Pumping air with a tire pump Into a 28-llter (1 cubic foot) S 11.124-9 Breathing tube teat; mini length to be considered for approval, container, or equivalent work. mum requiremenu. colled in loops 1.5 to 2.1 m. (5 to 7 feet) (d) No odor of the test gas or vapor (a) (1) Type A and type B supplied- in diameter. shall be detected by the wearer In the alr respirators shall employ one or two flexible breathing tubes of the nonkinking type which extend from the facepiece to a connecting hose coupling attached to the belt or harness. (2) The breathing tubes employed shall (b) Airflow resistance shall not exceed 38 mm. (1.5 Inches) of water-column height to air drawn at the flow rate of 85 liters (3 cubic feet) per minute. (c) The exhalation resistance shall not exceed 25 mm. (l Inch) of water-col air breathed during any such test, and the wearer shall not be subjected to any undue discomfort or encumbrance be cause of the fit, air delivery, or other features of the respirator during the mrmit free head movement. Insure umn height at this flow rate. testing period. FCDCIAl (MISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 TEN 6354 1X5 RULES AND REGULATIONS 6263 I 11.124--17 Man teat for (ate* and report; Type A and Type AE respira- lort; test requirements, (a) The completely assembled respi rator will be worn In a chamber contain ing o.l 0.025 percent lsoamyl acetate vapor, and the blower, the Intake of the hose, and not more than 25 percent of the hose length will be located In isoamyl acetate-free air. (b> The man In the lsoamyl acetate atmosphere will draw his Inspired air through the hose, connections', and all parts of the air device by means of his lungs alone (blower not operating). (e) The 10-minute work test will be repeated with the blower In operation at any practical speed up to 50 revolu tions of the crank per minute. 8 11.124--18 Man test for gate* and vapor*; Type B and Type BE respira tor* ; led requirement*. (a) The completely assembled respi rator will be worn In a chamber contain ing 0.1 0.025 percent lsoamyl acetate vapor, and the Intake of the hose, and not more than 25 percent of the hose length will be located In lsoamyl acetatefree air. (b) The man In the lsoamyl acetate atmosphere will draw his Inspired air through the hose and connections by means of his lungs alone. 11.124--19 Man ted for gate* and vapor*; Type C respirators, continu ous-flow claia and Type CE supplied- air respirators; test requirement*. (a) The completely assembled respi rator will be wom in a chamber contain ing 0 1 0.025 percent lsoamyl acetate vapor, the Intake of the hose will be connected to a suitable source of respi rable air, and not more than 25 percent of the hose length will be located in lsoamyl acetate-free air. (b) The minimum flow of air required to maintain a positive pressure in the respiratory-inlet covering throughout the entire breathing cycle will be sup plied to the wearer, provided however, that airflow shall not be leas than 115 liters per minute for tight-fltting and not less than 170 liters per minute for loosefitting respiratory Inlet-coverings, (c) The test will be repeated with the maximum rate of flow attainable within specified operating pressures. S 11.124--20 Man led for ga*e* and vapor*; Type C anpplied-air respire- maximum pressure with the minimum hoee length. 811.124-21 Test* for protection during abrasive blasting; Type AE, Type BE, and Type CE supplied-air respirators; general performance requirement*. (a) Tests will be made under condi tions of typical abrasive blasting opera tion. (b) The tests prescribed in i! 11.12422, 11.124-23, and 11.124-24 will be con ducted under the following conditions: (1) A suction-feed abrasive blasting outftlt will be used by the wearer: (2) The diameter of the air jet shall be 5 mm. <A inch); (3) Air pressure will be 278-483 fcN/ m.* (40-70 pounds per square inch); (4) The abrasive used will contain a composition of 09+ percent free silica (SlCb): (5) The size properties of the abrasive used will be a mixture of 90 percent by weight of essentially No. 1 sandblast sand and 10 percent air-floated fines: and (8) The No. 1 sand used will meet a size specification of not more than 10 percent on a 20-mesh sieve and not more than 10 percent through a 35-mesh sieve; 99+ percent of the fines will be able to pass through a 270-mesh sieve. All size determinations will be made by standardmesh sieves. (c) Tests will be conducted for 30 min utes continuously. (d) (1) The person wearing the res pirator will sandblast the inside surface of a common iron kettle of approximate hemispherical shape (about 78 cm. (30 inches) in diameter, and 113.6 liters (30 gallons) capacity). (2) The kettle will be placed with the plane of the opening inclined 45* from a vertical position and with the lowest point of the rim at about the height of the person's hips. (3) The wearer will stand at one posi tion in front of the kettle and lean over until the upper part of the body is in clined to parallel the face of the kettle. (4) The wearer will blaet the entire inner surface of the kettle with the blast at all times directed approximately at right angles to the surface with the noz zle of the gun approximately 15 cm. (8 Inches) from the surface, and with his head approximately 48 cm. (18 inches) from the nozzle. (5) The wearer will jnove his head for ward. backward, and sideways during each blasting operation. (1) The amount of particulate matter In the air withdrawn from the respira tory-inlet covering shall not exceed the amount of particulate matter supplied to the respirator by more than 0.5 mg. for the 30-minute test period: (2) The wearer of .the respirator in this test shall not experience undue en cumbrance and discomfort because of the fit, air delivery, or other features of the respirator: and, (3) The head and shoulder covering shall adequately protect the wearer from discomfort or injury due to im pact or abrasion from the rebounding material during the test. 8 11.124--22 Test for protection during abrasive blasting; Type AE supplied, air respirator; test requirements. (a) The respirator will be arranged as prescribed in { 11.124~17(a), and the tests prescribed in | H.124-21 will be performed. (b) The wearer will draw his In spired air through the hose, connec tions, and all parts of the air device by means of his lungs alone (blower not operating). (c> The test will be repeated with the blower in operation at any practical speed up to 50 revolutions per minute of the crank. 8 11.124--23 Teat for protection during abrasive blasting; Type BE suppliedair respirator; test requirements. (a) The respirator will be > arranged as prescribed in I ll.l24-18(a), and the tests prescribing in f 11.124-21 will be performed. (b) The wearer will draw his Inspired air through the hose, connections, and all parts of the air device by means of his lungs alone. 8 11.124-24 Test forprolection during abrasive blasting; Type CE suppliedair respirator; test requirements. (a) The respirator will be arranged as prescribed in 111.124-19(a), and the tests prescribed in i n.124-21 will be performed. tors, demand and pre**ure-demand classes; test requirement*. (a) The completely assembled respi rator will be wom In a chamber contain ing 0.10.025 percent lsoamyl acetate vapor, the intake of the hose will be con (e) (1) Air will be withdrawn continu ously during the test at the rate of 32 liters (1.13 cubic feet) per minute from the resplratory-iniet covering at a point as near as convenient to the wearer's nostrils. nected to a suitable source of respirable (2) Simultaneously air will be drawn air, and not more than 25 percent of the at the same rate from the source of in hose length will be located in lsoamyl take air to the respirator. acetate free air. (f) Respirators tested in accordance (b) The test will be conducted at the minimum pressure with the maximum hose length and will be repeated at the with H 11.124-22, 11.124-23, and 11.124-24 shall meet the following mini mum requiremer'A; Figure 1.--Apparatus for measuring power required to operate blower. (30 CFR Part 11, Subpert J, 111,194-3) lib HDIIAl MOUTH. VOL 37, NO. 5--SATUIOAY, MAf.M 15, 1477 DiN 6355 KUl.ES AND REGULATIONS dpoctfla requirements Tails I.--Am-StrmT-Lnu RiMUiim am Tam (MCrB Port ll, Subport J, 111,104-7) Requirements lor the sir-supply Hus of the Indicated typsofrapptlerlotrNcpWoloa Typo A Typs b Type C Tistfl A-Aia-8mi-Lora Rsopisshphti an Tctm-ConUnoad (MCTB Part 11, flabpart J, (1L130-7) flpedfle lapmnaota Bcqulnmontefer tbo air-supply Itooo of fbo indleatod types ofsupptWdnlrrmpAutn TypoA TypoS Typed Leeth el base.. Airflow. 1*0. floslmum ofW n. (Ml iMt), la multiples ot TAm. (Mfostf. UailmumotS m. (TO KM) la muMplao of 7A m. afwot). Uollmumoftl m. (MO Wot) In uultlptaa of 7A m. (M loot). It will bo pormtodMo lor the wSowit to imply booo of tbo appswrod typo of obortar Watb tkoo 7.0 o>. ( loot) pcootSoO It moots tbo roqulromeate of tbo port. ,, Non*..................... Tbo oir-oupply booo with sir mculolliv roles s' artfloo oull permit o flow of not lorn than lit Ulsro (t came toot) par adoato to Ucht-flttiao tof 170 Uun (0 came loot) per alaau to loom atUnc respiratory-inlet corertnp ttfoosb tbo motlmom Isoyth of booo tor wbleb approto) b panted oad at tbo minimora spoctflod nir-eoppiy pressure. Tbo motlmom turn shall sot wood 42$ atort <11 cable foot) por minute at tbo uwfe mum specified air-supply erasure wltb tbo mlnl- mom looptb of booolor wMch approoal to erastod. bo air-supply base, detachable upUn, sad domood to)to ot tbo domood oloor ot pnsoursdomoad toIto of tbo pcooouro-domond clooo lor Typo c roppUodroIr nepltotert, drmond oad promote demand tloooea, oboll bo capable of dollTorloo respirable abate rote cl aothootboa 111 liters (4 toHc loot) por mlmta to tbo rseplratory-lulet ooTorlno ot so Inholotlon rmtotonoo sot eomadloa M millimeters (1 Inches) of wotorcolomn bstebt mooturod In tbo rmplratasy-lnlat cantina wltb any combination of alr-oapply prooouroond lonflb ofbeor within tbo applicant's opoelflod roftfo of prmoaia and boo* lonflb. Tbo air-flow rata and root!Unco to Inhalation oboll be motoowd wbllo tbo dtmand or pnssarwdssnand toIto 1j octuotod 20 timer per minute by o source ol Intermittent auction. The masimom rale of flow to tbo neptratory-tnlet ooTMtnf oboll not oxeood 42$ lltero (11 cubic feat) per minute under tbr rpcctflod opcntlnf conditions. Norm........................II on elr-refulatlnf TolTe Is provided, It oboll bo oo dmlfnod that It will remain ot a specific adjustment. which will not bo effected by the ordlaory moreoent of tbo woanr. Tbs Tdra matt bo oo constructed that tbo dr ouppir with tbo mortmnm lanftb of boas and ot tbo minimum opodflod air-supply pressure Will not bo lam thou 111 Keen (4 cubic Wet) of dr per minute to Ufht-dttlnr and 170 Iften (t cubic Wot) of dr per minute of tocoAUbif reeptrmtory InWt ------- .-- ----------- ----------- 1 f Ac TdTO. If o toIto mplaem tbo appcarol la aaodbt by : i of tbo i leoiftb ordroupety bom for which approval W ooufbt. Tbo ootid d tbo demand or rinoenn domaud^TdTo^iboll bo oonaoctedjojt sautesof Tbe base shall not edlapm or oablblt permanent defarmooouwbsn alamo of Same ee Type A- Nona. zssssr* mliwitee botwoon 1 planes 7.0 cm. (1 Inches) wide on oppodtaddesdtbo boee. NsnHnk- Nona........................... . Hoot.. .................. A 7.1 m. (3$ loot) section ol tbo bore wtil be placed ability. on a borlsontol-pUne lurfoco and dtapad into a one-loop coll with fuse and of tbo boss counertort to an ouflow meter end tbe other end of tbe boee supplied srltb air ot tbo mtnmnlm specified apply pnmfi. Tbo coaneetloo oboll bo In tbo plane of tbo loop. Tbootbor end of tbe hoae will bo pulled tencentlolly la tbo loop end In Use piano of tbo loop until tbo h*** ittilffatMi. To oat IIm MqalrezDmb of UUc tattbiloopibiJl m*lat*lo a uniform Dor-dnolir *h*p* oad ulUmoUly untold a i iplr*l< without uy local* bad ddormiUon tbit deeroamaa Um how of air to lea* than 90 percent of tbe flow itbaa tbe boee la teeled vhlU rvnudnlnj In a atnlcbt lfn*. Btronyth of boaa Hoae and ooapHncs i Type A.. Ho** end ooupllnp iball not exhibit *n7 aeperetloo and couplliifo. shell sot separate or or failure when teated wltb * pull of 46kf. (100 foil when tested wltb poaoda) tor $ minute* *ad when teeted by aub> o pull of lit kf. toetlnc them to an Intern*] air pr--ure of 3 time* (250 poonda) for tbe maximum reeplrmtor-eupptj prestore that U t minutes. ipadflid by the applicant or at ITS Tlfhtueee........... No air leakage shell None occur when the hose (2* pounds per apian Inch) pc*. whichever ta bickers U__t_K__IMfof sir ucecdln M ee. per minute ot each ooupIliK oboll not be permlttad when tbo boat and _ JooupUncsa. jclnfdmid wjdnt(i) eoupltaf] on Joined end on Immersed In weter, wltb sir flowlnc throucb tbe respintor under o ere Immersed In voter end subjected to an preomre of 171 iN/m.* (3f pounds per squat* Inch) face applied to tbe inlet end of tbo sircup- Intern*! air pr--m* ply boos, or ot twleo tbo motlmom respiretor of kN/m.M5 poaoda seppiy pressure that Is specified by tbe applicant, Der sours Inch) ms. remnatton of The pernssetSoo of me whichever Is hl^ur* os for Typo Someoofor Typo A, *reept the toot period shall bo hoae by taaoUnt. booo by (OsoUm will bo tested by bnmsrolacTAm. (2$ Wat) of in (eooitoe, srtS'aw'* flowtno tbmuflb the boas at tbo imo or1 Utsr* par mlnuts Wr I boon. Tbr air bom tbs boot shall net Bometro dunonit reive beetooled eppralmeUiT fluom par minute lor o total ot 100,000 Inhabs- hem. To enpedtte tbte tort, tbo isU of oetootlon mow bo Increased If mutudty opombU to tbo erntloool and tbo flaroon Dnrtas tble toot the Detachable coupling. dye weareftbe i inf porta, norm Tdra rhafl not bo a suMeeud ol tbo outlet to o | i Wrto of Mem. (10 Inched d Ml percent by Tolnmo of (otollne Tspor at tbo and ot None. A bond-operoted detachable coupttnf by whlcb tbo wsonr can reodlly attach or detach tbo oonneetln* hoes shall be pmTlded ot a eooTsalent kseotloa. This eaupUnf shall bo durable, recontn connected andsr all conditions of normal res pirator use, and meet Use prescribed teats far streestb sod tlcbtneas tf boos and coupUtocs. QCfQ K m MORAL UOISm, VOC 37, NO. SP--SATURDAY, MAtCH 7S, 1973 JULES AND REGULATIONS 6265 Swbpart K--Dust, Funta, and Mitt dusts, or dust* and mists, including but structed to fit persons with various facial Raiptrat rt not limited to aluminum, asbestos, coal, shapes and sl2es either: (l) By providing flour, iron ore, and free silica. more than one facepiece size, or (3) by | 11.130 Daft, fame, and mlal respire- (1) The types of dust, fume, and mist providing one facepiece size which will tort t description. respirators in paragraphs (a) through fit varying facial shapes and sizes. Dust, fume, and mist respirators, in cluding all completely assembled respi rators designed for use as respiratory protection during entry Into and escape from hazardous particulate atmospheres which contain adequate oxygen to sup port life, are described as follows: (a) Respirators, either with replace able or reusable Alters, designed as res piratory protection against dusts (1) having an air contamination level not less than 0.05 milligram per cubic meter of air, including but not limited to coal, arsenic, cadmium, chromium, lead, and manganese; or (3) dusts having an air contamination level not less than 3 mil lion particles per cubic foot of air, in cluding but not limited to aluminum, flour, iron ore, and free silica, resulting principally from the disintegration of a solid, e.g., dust clouds produced In min (g> of this section may also be classified according to their design as follows: (17 Air-purifying respirators; and (3) Powered air-purifying respirators. 11.131 Dust, fume and mist respira- tors-, required components. (a) Each dust, fume, and mis respi rator described in 111.130 shall, where its design requires, contain the following component parts; (1) Facepiece, mouthpiece with noseclip, hood, or helmet; (3) Filter unit; (3.) Harness; (4) Attached blower; and (5) Breathing tube. (b) The components of each dust, fume, and mist respirator shall meet the minimum construction requirements set forth In Subpart G of this part. (b) Full facepieces shall provide for optional use of corrective spectacles or lenses, which shall not reduce the respi ratory protective qualities of the respira tor. (c) Hoods and helmets shall be de signed and constructed to fit persons with various head sizes, provide for the op tional use of corrective spectacles or lenses, and insure against any restriction of movement by the wearer. (d) Mouthpieces shall be equipped with nosecllps which are securely at tached to the mouthpiece or respirator and provide an airtight seal. (e) Facepieces, hoods, and helmets shall be designed to prevent eyepiece fogging. (f> Half-mask facepieces shall not in terfere with the fit of common Industrial safety corrective spectacles, as deter ing, quarrying, and tunneling, and In 11.132 Bresthing tubes; minimum re mined by the Bureau's facepiece tests in dusts produced during Industrial opera quirements. 9! 11.140-1 and 11.140-3. tions. such as grinding, crushing, and the general processing of minerals and other materials. <b) Respirators, with replaceable fil ters, designed as respiratory protection against fumes of various metals having an air contamination level not less than 0.05 milligram per cubic meter, includ ing but not limited to aluminum, anti mony, arsenic, cadmium, chromium, cop per, Iron, lead, magnesium, manganese, mercury (except mercury vapor), and zinc, which result from the sublimation r condensation of their respective vapors, or from the chemical reaction between their respective vapors and gases. (c) Respirators, with replaceable fil ters, designed as respiratory protection against mists of materials having an air contamination level not lees than 0.05 milligram per cubic meter or 3 million particles per cubic foot, e.g., mists pro duced by spray coating with vitreous enamels, chromic acid mist produced during chromium plating, and other mists of materials whose liquid vehicle does not produce harmful gases or vapors. (d) Respirators, with replaceable fil ters, designed as respiratory protection against dusts, fumes, and mists having an air contamination level less than 0.05 milligram per cubic meter. Including but not limited to lithium hydride and beryl lium. and against radionuclides. (e) Respirators, with replaceable fil ters, designed as respiratory protection against radon daughters, and ration daughters attached to dusts, fumes, and mists. (f) Respirators, with replaceable fil ters. designed as respiratory protection against asbestos-containing dusts and mists. (a) Flexible breathing tubes used In conjunction with respirators shall be de signed and constructed to prevent: (1) Restriction of free head move ment: (3) Disturbance of the fit of facepieces, mouthpieces, hoods, or helmets: (3) .Interference with the wearer's ac tivities: and (4) Shutoff of airflow due to kinking, or from chin or arm pressure. (11.133 Harnesses; installstlon and construction; minimum require ments. (a) Each respirator shall, where nec essary, be equipped with a suitable har ness designed and constructed to hold the components of the respirator in po sition against the wearers body. (b> Harnesses shall be designed and constructed to permit easy removal and replacement of respirator parts, and, where applicable, provide for holding a full facepiece In the ready position when not in use. B 11,134 Respirator containers; mini mum requirements. (a) Except as provided in paragraph (b) of this section each respirator shall be equipped with a substantial, durable container bearing markings which show the applicant's name, the type of respira tor Is contains, and all appropriate ap proval labels. (b> Containers for single-use respira tors may provide for storage of more than one respirator, however, such con tainers shall be designed and construct ed to prevent contamination of respira tors which are not removed, and to pre vent damage to respirators during trans it. 11.136 Facepieces, hoods, and hel mets; eyepieces; minimum require ments. Facepieces, hoods, and helmets shall he designed and constructed to provide ade quate vision which Is not distorted by the eyepieces. 11,137 Inhslalion and exhalation valves; minimum requirements. (a) Inhalation and exhalation valves shall be protected against distortion. (b) Inhalation valves shall be designed and constructed and provided where nec essary to prevent excessive exhaled air from adversely affecting filters, except where filters are specifically designed to resist moisture as prescribed In 911.140-5. (c) Exhalation valves shall be: (l) Provided where necessary: (3) protected against damage and external Influence: and (3) designed and constructed to prevent Inward leakage of contaminated air. 11.138 Head harnesses; minimum re quirements. (a) All facepieces shall be equipped with head harnesses designed and con structed to provide adequate tension during use and an even distribution of pressure over the entire area In contact with the face. (b> Facepiece head harnesses, except those employed on single-use respirators, shall be adjustable and replaceable. (c) Mouthpieces shall be equipped, where applicable, with adjustable and replaceable harnesses, designed and con structed to hold the mouthpiece in place. 11.139 Air velocity and noise levels; hood* and helmets; minimum re (g) Respirators, with replaceable fil ters, designed as protection against var ious combinations of particulate matter. (h) Single-use dust respirators de signed as respiratory protection against 11.135 Half-mask fnrepici-es, full facepieces, hoods, helmets, and mouthpieces; fit; minimum require* ments. (a' Half-mask facepieces and full quirements. Noise levels generated by the respira tor will be measured Inside the hood or helmet at maximum airflow obtainable pneumoconiosis- and fibrosis-producing facepieces shall be designed and con and shall not exceed 80 dBA. 118 HDEIAL REGISTER, VOl. J7, NO. 59--SATJJ0AY, MARCH JJ, 19/J TEN 6357 6266 RULES AND REGULATIONS t 11.140 Dull, fume, and mUt respira schedule specified In paragraph (b)(2) taken during testing, shall not exceed 1.8 tor* ; performance requirement*; of this section. milligrams for any single test. . general. B Dust, fume, and mist reapIrators and 3 11.140-3 Air-purifying filter tests; performance requirements; general. g 11.140-6 Lead fume lest; minimum requirements. Khe individual components of each such device shall, as appropriate, meet the requirements for performance and pro tection specified In the tests described in If 11.140-1 through 11.140-12 and pre scribed In Tables 9 and 10. S 11,140--1 Isoamyl acetate tightness teat; dust, fume, and mist respirators designed for respiratory protection Dust, fume, and mist respirators will be tested in accordance with the schedule set forth in Table 10 to determine their effectiveness as protection against the particulate hazards specified therein. 8 11.140--4 Silica dust test; single-use or reuseable filters; minimum require ment*. (a) Three respirators will be tested for a period of 312 minutes each at a continuous airflow rate of 32 liters per minute for air-purifying respirators, and for periods of 4 hours each at a flow rate not less than 115 liters per minute to tight-fitting facepieces, and not less than 170 liters per minute to loose-fitting hoods and helmets for powered air- against fume* of various metals hav (a) Three respirators with single-use purifying respirators. ing an air contamination level not less filters will be tested for periods of 90 (b) The relative humidity in the test than 0.05 milligram per cubic meter; minutes each at a continuous airflow chamber will be 20-50 percent, and the minimum requirements. rate of 32 liters per minute for alr-purl- room temperature approximately 25* C. (a) The respirator will be modified In fylng respirators, and for periods of 4 (c) The test suspension in the test such a manner that all of the air that hours each at a flowrate not less than chamber will not be less than 15 nor normally would be Inhaled through the 115 liters per minute to tight-fitting face- more than 20 milligrams of freshly gen Inhalation port(s) is drawn through an pieces, and not less than 170 liters per erated lead-oxide fume, calculated as efficient activated charcoal-filled can minute to loose-fitting hoods and hel lead (Pb), per cubic meter of air. ister, or cartridge (s), without Interfer mets for powered air-purifying respira (d) The fume will be generated by ence with the face-contacting portion of tors. Impinging an oxygen-gas flame on the facepiece. (b) The relative humidity In the test molten lead. <b) The modified respirator will be chamber will be 20-50 percent, and the (e) Samples of the test suspension will worn by persons for at least 2 minutes room temperature approximately 25* C. be taken during each test, period for each In a test chamber containing 100 (c) The test suspension in the chamber analysis. parts (by volume) of isoamyl-acetate will not be less than 50 nor more than (f) The total amount of unretalned vapor per million parts of air. 60 milligrams of flint (99+ percent free test suspension in the samples taken dur (c) The odor of isoamyl-acetate shall silica) per cubic meter of air. ing testing, which *s analyzed and calcu not be detected by the wearers of the (d) The flint In suspension will be lated as lead (Pb), shall not exceed 1.5 modified respirator while In the test ground to pass 99+ percent through a milligrams of lead for an air-purifying atmosphere. 270-mesh sieve. respirator, 4.2 milligrams of lead for a 3 11.140-2 Isoamyl acetate tightness teat; reapiratom designed for respira tory protection against dusts, fumes, and mist* having an air contamina (e) The particle-size distribution of the test suspension will have a geometric mean of 0.4 to 0.6 micrometer, and the standard geometric deviation will not powered air-purifying respirator with tight-fitting facepiece, and 6.2 milli grams of lead for a powered air-purify ing respirator with loose-fitting hood or tion level less than 0.05 milligram exceed 2. helmet. per cubic meter, or against radio nuclides ; minimum requirements. (a) The applicant shall provide a charcoal-filled canister or cartridge of a size and resistance similar to the filter unit with connectors which can be at tached to the facepiece In the same man ner as the filter unit. (b) (1) The canister or cartridge will be used in place of the filter unit, and persons will each wear a modified half mask facepiece for 5 minutes In a test chamber containing 100 parts (by volume) of lsoamyl-acetate vapor per million parts of air. (2) The following work schedule will be performed by each wearer in the test chamber: (l) Two minutes walking, nodding, and shaking head In normal movements; and (11) Three minutes exercising' and running in place. (3) The facepiece shall be capable of adjustment, according to the applicant's Instructions, to each wearer's face, and the odor of lsoamyl-acetate shall not be detectable by any wearer during the test. (c) Where the respirator Is equipped with a full facepiece, hood, helmet, or mouthpiece, the canister or cartridge will be used in place of the filter unit, and persons will each wear the modified res piratory-inlet covering for 5 minutes in a test chamber containing 1,000 parts (by volume) of lsoamyl-acetate vapor per million parts of air, performing the work (f) The total amount of unretalned test suspension in samples taken during testing shall not exceed 1.5 milligrams for an air-purifying respirator, 14.4 mil ligrams for a powered air-purifying res pirator with right-fitting facepiece, and 21.3 milligrams for a powered alr-purifylng respirator with loose-fitting hood or helmet. (g) Three respirators with reusable fil ters win be tested and shall meet the requirements specified in paragraphs (ai through (f) of this section; each filter shall be tested three times: Once as re ceived; once after cleaning; and once after recleaning. The applicant's instruc tions shall be followed for each cleaning. Sll.140-5 Silica-dust test; single-use dust respirators; minimum require ments. (a) Three respirators will be tested. (b) As described In 111.140-4, airflow will be cycled through the respirator by a breathing machine at the rate of 24 respirations per minute with a minute volume of 40 liters; a breathing machine cam with a work rate of 622 kg.-m.'/minute shall be used. (c) Air exhaled through the respirator will be 35* *2* C. (95* 3* F.) with 94 3 percent relative humidity. (d) Air Inhaled through the respira tor will be sampled and analyzed for respirator leakage. (e) The total amount of unretalned test suspension, after drying, in samples 8 11.140-7 Silica mist test; minimum requirements. (a) Three respirators will be tested for a period of 312 minutes each at a continuous airflow rate'of 32 liters per minute for air-purifying respirators, and for periods of 4 hours each at a flow rate not less than 115 liters per minute to tight-fitting facepieces, and not less than 170 liters per minute to loose-fitting hoods and helmets for powered airpurifying respirators. (b) The room temperature In the test chamber will be approximately 25* C. (c> The trsst suspension in the test chamber will not be less than 20 nor more than 25 milligrams of silica mist, weighed as silica dust, per cubic meter of air. <d) Mist will be produced by spraying an aqueous suspension of flint (99+ per cent free silica), and the flint shall be ground to pass 99+ percent through a 270-mesh sieve. (e> Samples of the test suspension will be taken during each test period for analysis. (f) The total amount of silica mist un retained in the samples taken during testing, weighed as silica dust, shall not exceed 2.5 milligrams for an air-purify ing respirator, 6.9 milligrams for a pow ered air-purifying respirator with tightfitting facepiece, and 10.2 milligrams for a powered alr-purifylng respirator with loose-fitting hood or helmet. 119 riOlRAL ItOISTfl, V l. 37. NO. 5*--SATUROAY, MARCH JJ, 1972 TEN 6358 RULES AND REGULATIONS 6267 8 11.140-8 Test* for respirator* de signed for respiratory protection gainst more than one typo of dlapersoid; Tnlnin*nni requirements. Respirators designed m respiratory protection against more than one partic ulate hazard (dust, fume, or mist) shall comply with all the requirements of this part, with respect to each of the specific hazards Involved. 11.140-9 Airflow resistance testa; all duat, fume, and miat respirators; minimum requirements. <a) Resistance to airflow will be meas ured in the facepiece, mouthpiece, hood, or helmet of a dust, fume, or mist res pirator mounted on a test fixture with air flowing at a continuous rate of 86 liters per minute, both before and after each test conducted In accordance with {} 11.140-4 through 11.140-7. (b) The maximum allowable resistance requirements for dust, fume, and mist respirators are as follows: | 11.140-11 DOP filter teat; respirator* designed as respiratory protection against duals, fumes, and mitts hav ing an air contamination level less than 0.05 milligram per cubic meter and against radionuclide*; minimum requirement*. (a) All single air-purifying respirator filter units will be tested in an atmos phere concentration of 100 mlcrograms of DOP per liter of air at continuous flow rates of 32 and 85 liters per minute for a period of 5 to 10 seconds. (b) Where filters are to be used in pairs, the flow rates will be 16 and 42.5 liters per minute, respectively, through each Alter. (c) The filter will be mounted on a connector In the same manner as used on the respirator, and the total leakage for the connector and filter shall not ex ceed 0.03 percent of the ambient DOP concentration at either flow rate. | 11.140--12 Silica duat loading teat; respirator* designed as protection against duet*, fumes, end mists hav ing an air contamination level less than 0.05 milligram per cubic meter and against radionuclide*; minimum requirements. Maximum Rsswtamcs (mm. water-column bslfht) Typ* of TMpintor Initial Final Exhala Inhala Inhala tion tion tion Three respirators will be tested in accordance with the provisions of ! 11.140-4 and shall meet the minimum requirements of || 11.140-4 and 11.140.9. Tail* Vacinic* Tiat Reqcimuints (10 CP R Fart 11, Subpert X, 111.1*0-1. *1 aaq) 6tngls-u___ -................ Duat, him*, and mist, with single-os* filter... Dost fume, tad mUt, wlto rarabta fUtor... E*don dAUfhUr,,.........Ajbflfttos dust And mitt.. n IS 30 so 30 40 IS 12ft 13 2ft 1ft 30 3ft 11 1ft > Measured altar lilies dust test dssetibad In | 11.140-4. $ 11.14G-10 Exhalation valve leakage teat; minimum requirements. Respirator types Pmsun tlghtnew Isoamyl acetate Ust teat i 11.1*0-1 1L140-2 DtuuAlr Contamination Lrral not less than 0.0S mg/U* or 2 mppef......... X .......... PlUDSt: Air Contamina tion level not leas than 0.0gmg/M>..................... X X Mists: Air Contamination Level not less than (a) Dry exhalation valves and valve Duals. Puma, and Mists: seats will be subjected to a suction of 35 Air Contamination mm. water-column height while in a Laval loss than 0.05 mg/ M> or l mppef, and normal operating position. X ............. x Radon daughters............. X X ............... (b) Leakage between the valve and Aabaatoa-oontalnlng dusts valve seat shall not exceed 30 milliliters X per minute. 1 Test Is reqiCnd only when tppbubi*. Tabu 10--Aia-Fuannuo amd powibid Aia-pvmmwo RxansAro* Pam Tun Rsqonso to* Amoral (M CPR Part 11. Snbpart X. I ll.l*0-(, et esq.) Respirator types Blue* dust tuts L*d hum auto* mist DOF tflftt 1L140-4 11.140-5 1L 1*0-12 11.140-5 It 140-7 1L140-11 M* or 2 mppef. Fumes: Air Contamination Level not leas than 0.05ms/.......................................--,, X M*. X M* or 2 mppcL _ Dusts, Puma, and Mlata: Air Contamination Laval....... ..........._........- X X leu than 0.05 mg/M* or 2 mppef, and rsdlooonbdss. Radon daughter*............................ ......... .... -- j X< X* x< X* 1 For resistance only. For penetration only. > Test required only when appHeablai Subpart L--Chemical Cartridge Respirator* 8 11.150 Chemical cartridge respirators; description. Chemical cartridge respirators includ ing all completely assembled respirators which are designed for use as respiratory protection during entry Into or escape from atmospheres not immediately dangerous to life and health, are de scribed according to the specific gases or vapors against which they are designed to provide respiratory protection, as follows: Maximum use Typ* of chemical concentration, parte cartridge respirator: per million Ammon!* ........................................... Chlorine ____________________________ Hydrogen chloride________________ Methyl amine_____________________ Organic vapor7 *1,000 Sulfur dioxide____________________ 300 10 50 100 GO 7 Not foe use against organic vapors with poor warning properties or thooe which gen erate high beets of reaction with sorbent material in the cartridge. Maximum use concentration* are lower for organic vapors which produce atmos pheres immediately hazardous to life or health at concentrations equal'to or lower than this concentration. Note: Chemical cartridge respirators for respiratory protection against gasea or vapors, which are not specifically listed with their maximum use concentration exoept pestl- cldee, may be approved ir the applicant sub mit: a request for such approval, in writing, to the Bureau. The Bureau and the Institute shall consider each such application and ac cept or reject the application after a -evlew of the effect* on the wearer's health and safety and In the light of any field experience In use of chemical cartridge respirator* as protection against such hazards. 8 11.151 Chemical cartridge respirators; required component*. (a) Each chemical cartridge respira tor described in 111.150 shall, where its design requires, contain the following component parts: (1) Facepiece, mouthpiece, and noseclip, hood, or helmet; (2) Cartridge; (3) Cartridge with filter; (4) Harness; (5) Breathing tube; and (6) Attached Mower. (b) The components of each chemical cartridge respirator shall meet the mini mum construction requirements set forth in Subpart O of this part. 8 11.152 Cartridges in parallel; resistance requirements. Where two or more cartridges are used In parallel, their resistance to airflow hall be essentially equal. j'1.153 Cartridges; color and mark ings; requirements. The color and markings of all car tridges or labels Bhall conform with the requirements of the American National Standard for Identification of Oae Mask 120 No. 59--Pt. II KOMA1 UOItm. VOL *7, NO. 5*--SATUUDAY, MA8CH 25, 1*72 rEN 6359 6268 RULES AND REGULATIONS Canisters, K13.1, obtainable from Amer (d) Full facepieces shall provide for Maximum Smwtanc* ican National Standards Institute, Inc,, optional use of corrective spectacles or (mm. WAUr-coiumn bdtht) 1430 Broadway New York, NY 10018, lenses which shall not reduce the respi U-1S4 Filter* used with ehemical car- fridges; location; replacement ^^a) Particulate matter filters used In conjunction with a chemical cartridge shall be located an the inlet side of the cartridge. (b) Filters shall be Incorporated In or firmly attached to the cartridge and each filter assembly shall, where applicable, be designed to permit Its easy removal ratory protective qualities of the respi rator. (e) Facepieces, hoods, and helmets shall be designed to prevent eyepiece fogging. 11.158--1 Facepieces, hooda, and helmeta; eyepieces; minimum require ments, Facepieces, hoods, and helmets shall be designed and constructed to provide ade Type of h*mlosl outride* Ioh*l*tloo Iihala- iwptntor -------------------- uoq InltUl Fln*l> tor um, v*pon, or cm** And vopoti................................ 40 W X For caw, vapor*. or |i*a* too vtpon, ana du*U, ftimo*. and ml*U.................... 10 70 X For nw, vapor*, or nw and vopor*. ana ml*to of point*, lacquu*. and *o*m*l*.................................. JO 70 from and replacement on the cartridge. S 11,155 Breathing lubes; minimum re quirement*. (a) Flexible breathing tubes used In conjunction with respirators Shall be designed and constructed to prevent: (1) Restriction of free head move ment: (3) Disturbance of the fit of facepieces, mouthpieces, hoods, or helmets; (3) Interference with the wearer's quate vision which is not distorted by the eyepieces. 11.159 Inhalation and exhalation valvea; minimum requirements. (a) Inhalation and exhalation valves shall be provided where necessary and protected against distortion. (b) Inhalation valves shall be de signed and constructed to prevent exces sive exhaled air from entering cartridges or adversely affecting canisters. 1 Meuund at and of **rvto* Ul* ipodBod la Tabla 11. 11.162-2 Exhalation valve leakage teat; minimum requiremenla. (a) Dry exhalation valves and valve seats will be subjected to a suction of 25 nun. water-column height while in a normal operating position. (b) Leakage between the valve and valve seat shall not exceed 30 milliliters per minute. activities; and (c) Exhalation valves shall be: (1) 11.162--3 Facepiece teat; minimum re <4) Shutoff of airflow due to kinking, Protected against damage and external quirements. or from chin or arm pressure. influence, and (2) designed and con (a) The complete chemical cartridge S 11,156 Harnesses; installation and construction; minimum require ments. (a) Each respirator shall, where nec essary, be equipped with a suitable harness designed and constructed to hold the componements of the respirator In position against the wearer's body. (b) Harnesses shall be designed and constructed to permit easy removal and ^replacement of respirator parts and, flMere applicable, provide for holding a facepiece in the reedy position when TH>t In use. structed to prevent Inward leakage of contaminated air. 11.160 Head harnesses; minimum re quirements. (a) Facepieces shall be equipped with adjustable and replaceable head har nesses designed and constructed to pro vide adequate tension during use and an even distribution of pressure over the entire area in contact with the face. (b) Mouthpieces shall be equipped where applicable, with an adjustable and replaceable harness designed and con structed to hold the mouthpiece in place. respirator will be fitted to the faces of persons having varying facial shapes and sizer. (b) Where the applicant specifies a facepiece size or sizes for the respirator together with the approximate measure ment of faces they are designed to fit. the Bureau will provide test subjects to suit such facial measurements. (c) Any chemical cartridge respirator part which must be removed to perform the facepiece or mouthpiece fit test shall be replaceable without special tools and without disturbing facepiece or mouth piece fit. { 11,157 Respirator containers; minimum requirements. Respirators shall be equipped with a substantial, durable container bearing markings which show the applicant's name, the type and commercial desig nation of the respirator It contains and Ml appropriate approval labels. 11.161' Air velocity and noite level*; hood* and helmet*; minimum re. quiremenU. Noise levels generated by the respira tor will be measured inside the hood or helmet at maximum airflow obtainable and shall not exceed 80 dBA. 11.162 Chemical cartridge reapirator*; <d> The facepiece or mouthpiece fit test using the positive or negative pres sure recommended by the applicant and described In his instructions will be used before each test. (e) < l) Each wearer will enter a cham ber containing 100 p.pm. isoamyl acetate vapor for half-mask facepieces, and 1,000 p.p.m. for full facepieces, mouthpieces, S 11.158 Half-mask facepieces, full performance requirement*; general. hoods, and helmets. facepieces, mouthpieces, hoods, and helmets; fit; minimum requirements. (a) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial shapes and sizes either: (1) By provid ing more than one facepiece size, or (2) by providing one facepiece size which will fit varying facial shapes and sizes. (b> Hoods and helmets shall be de signed and constructed to fit persons with various head sizes, provide for the optional use of corrective spectacles or lenses, and Insure against any restriction of movement by the wearer. (c) Mouthpieces shall be equipped with nosecllps which are securely at tached to the mouthpiece or respirator Chemical cartridge respirators and the individual components of each such de vice shall, as appropriate, meet the min imum requirements for performance and protection specified in the tests described In II 11.182-1 through 11.162-8. 11.162--1 Breathing reaistance test; minimum requirement*. (a) Resistance to airflow will be meas ured in the facepiece, mouthpiece, hood, or helmet of a chemical cartridge respi rator mounted on a test fixture with air flowing at a continuous rate of 85 liters per minute, both before and after each teat conducted in accordance with II 11.182-5 through 11.162-8. (b) The maximum allowable resist ance requirements for chemical cartridge (2) The. facepiece or mouthpiece may be adjusted. If necessary. In the test chamber before starting the test. (3) Each wearer will remain In the chamber for 8 minutes while performing the following activities: (I) Two minutes, nodding and turning head; (II) Two minutes, callsthenlc arm movements; (III) Two minutes, running In place; and (lv) Two minutes, pumping with a tire pump lntc a 28-liter (1 cubic-foot) container. (4) Each wearer shall not detect the odor of lsoamyl-acetate vapor during the and provide an airtight fit. respirators are as follows; test. /A 121 FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 ltiJN OJOU RULES AND REGULATIONS 6269 S 11.162-4 Lacquer and enamel mitt teala; raapiralora with filters; mini mum requirement*! general. (*) Three respirators with cartridges containing or having attached to them, filters for protection against mists of paints, lacquers, and enamels shall be tested in accordance with the provisions of | 11.162-6. (b) In addition to the test-require ments set forth in paragraph (a) of this section, three such respirators will be tested against each aerosol in accordance with the provisions of II 11.162-6 and 11.162-6. 11.162-5 Lacquer mitt test; minimum requirements. (a) Temperature In the test chamber will be approximately 25* C. (b) Continuous airflow through the respirator will be 32 liters per minute for air-purifying respirators, and not less than 115 liters per minute to tight fitting facepieces and 170 liters per minute to loose-fitting hoods and helmets of pow ered air-purifying respirators. (c> Airflow through the chamber will be 20-25 air changes per minute. (d> The atomiser employed will be a No. 64-5 nozzle with setup 3, or equiv alent, operating at 69 kN/m*. (10 pounds per square Inch gage). (e) The test aerosol will be prepared by atomizing a mixture of one volume of clear cellulose nitrate lacquer and one volume of lacquer thinner. (f) The lacquer used will conform es sentially to Federal Specification TT-L31. October 7, 1953. (g) The concentration of cellulose nitrate in the test aerosol will be 95-125 milligrams per cubic meter. (h) The test aerosol will be drawn to each respirator for a total of 166 minutes for air-purifying respirators and 240 minutes for powered sir-purifying respirators. <U The total amount of unretalned mist In the samples taken during testing, weighed as cellulose nitrate, shall not ex ceed 5 milligrams for an alr-purlfylng respirator, 28 milligrams for a powered air-purifying respirator with tight- (d) The atomizer employed win be a No. 64 noszle with setup 1A, or equiv alent, operating at 69 kN/m*. (10 pounds per square Inch gage). (e> The test aerosol will be prepared by atomizing a mixture of 1 volume of white enamel and 1 volume of turpentine. (f) The enamel used will conform es sentially to Federal Specification TT-E469b, May 12, 1953 (an enamel having a phthallc alkyd realn vehicle and a titanium dioxide pigment). (g) The concentration of pigment In the test aerosol, weighed as ash, will be 95-125 milligrams per cubic meter. (h) The test aerosol will be drawn to each respirator for a total of 156 minutes for air-purifying respirators and 240 minutes for power alr-purlfylng respirators. (l) The total amount of unretalned mist in the samples taken during testing, weighed as ash, shall not exceed 1.5 milligrams for any alr-purlfylng respi rator. 6.3 milligrams for a powered alrpurlfylng respirator with tight-fitting facepiece, and 12.3 milligrams for a powered alr-purlfylng respirator with loose-fitting hood or helmet. 11.162--7 Dust, fume, and mist tests; respirators with Alters; minimum re quirements; general. (a) Three respirators with cartridges containing, or having attached to them, filters for protection against dusts, fumes, and mists, except the mists of paints, lacquers, and enamels, will be tested in accordance with the provisions of 111.162-8. (b) In addition to the test require ments set forth in paragraph (a) of this section, three such respirators will be tested, as appropriate. In accordance with the provisions of II 11.140-1 through 11.140-14. however, the maxi mum allowable resistance of complete dust, fume, and mist, and gas, vapor, or gas and vapor chemical cartridge res pirators shall not exceed the mumming allowable limits set forth In 111.162-1. 11.162-8 Bench teat*; fat and vapor teats; minimum requirement*; gen- ersl. (a) Bench tests will be made on an apparatus that allows the test atmos phere at 50 5 percent relative humid ity and room temperature, approximately 25* C., to enter the cartridges contin uously at predetermined concentrations and rates of flow, and that has means for determining the test life of the cartridges. (b) Where two cartridges are used In parallel on a chemical cartridge respi rator. the bench test will be performed with the cartridges arranged in parallel, and the test requirements will apply to the combination rather than to the In dividual cartridges. (c> Three cartridges or pairs of cartridges will be removed from con tainers end tested as received from the applicant. (d> Two cartridges or pairs of cart ridges will be equilibrated at room tem perature by passing 25 percent relative humidity air through them at the fol lowing flow rates (expressed In liters per minute (l.pjn.)) for 6 hours: Typ* of cartrtdga: Airflow rate, l.p.m. Air purifying________________ Powwsd air purifying with tightfitting fsccplsc#_____________ ______ Powsrsd air purifying with loosefitting hood or helmet____________ 39 115 lTO (e> Two cartridges or pairs of car tridges will be equilibrated by passing 85 percent relative humidity air through them at the flow rates stated in para graph (d) of this section. (f) All cartridges will be resealed, kept In an upright position, at room tempera tures, and tested within IS hours. (g) Cartridges will be tested and shall meet the minimum requirements set forth in Table 11. Tratx ll.--CuniNi Broca Tun uri RiQctiiuxxra (SO era Part ll, Subpart L, |11.1SS-S) fitting facepiece, and 41 milligrams for a powered alr-purlfylng respirator with loose-fitting hood or helmet Cartr1d*a Teat condition Tstifaaptm Qti or Caoeantis. TlpOf tton (p.p.m.) FlevrtU (Ip..) Nuabr PD* Minimum Of tttti tr*t4oo * Uf' (p.pJR.) (J.) 11.162-6 Knantel mist test; minimum d*24a (a) Ttmjicrature In the test chamber will be approximately 26* C. CD) Continuous airflow through the respirator will be 32 liters per minute for alr-purlfylng rn.qilretors, and not lew than 115 liters per minute to tight-fitting facepieces and 170 liters per minute A* racclnd........... Nil Ammonia................. equilibrated......... NH, CbtariM................... Chlortaa................... Ac race!red........... Equilibrated......... Cli Clt Hydrocee thkuld*... Hydro** chloride... Methyl smin........... Acrcouvad........... Equilibrated......... A* received........... BCI HCI CH, NH, Methyl amine........... Equilibrated......... CH, NHi Oriauie vapor*......... Acracclvad........... ecu Onanlc noon......... Squiilbratod......... ecu Suror dtoilde........... Ac received........... SOt Sulfur dioxide........... Equilibrated......... BOi 1000 uos 00 100 oo 400 looo looo 1000 1000 600 <00 04 93 44 13 04 93 M 44 93 44 93 9 10 4 10 S4 41 31 41 1 10 4 10 3 4 3 4 f3ftt 60 60 34 35 60 50 25 25 60 60 30 30 to loose-fitting hoods and helmets of powered air-purifying respirators. (e) Airflow through the chamber will he 20-25 air changes per minute. > Mlalaon Ilf* will bo determined at lb* Indicated paoetratton. * Where a respirator la designed for rcaplratory proteettes asnlast Bora tbsa os* typa of |u or vapor, a* for aaa In ammonia and la chlorine. the minimum Ufa aboil b* one-haIf that shows for each type of gaa or rapar. Where a respirator Is dutfsad ft* rcaplratory protectsoo against mora than one yaa of a typa, a* far nas la ehlortie tad aalfar dioxide. tha stated minimal Ufa shall apply. 122 no. 8--pt. n- FtJCIAl Igoisni, VOL 3/, NO. 5f--SATUSOAY, MAICM 29, 1V71 TEN 6361 6270 RULES AND REGULATIONS Subpart M--PiiHdd* Retplrat r* | 11.176 Hmimmc*; hutnOnilon and Industrial, GGO-M-126d. October 11, J 11.170 Pealicidc reaplratom; dcscrip- b lion. W Pesticide respirators, Including an completely assembled respirators which are designed for use as respiratory pro tection during entry Into and escape from atmospheres which contain pesti cide hazards, are described according to their construction as follows: (a) Front-mounted or back-mounted gasmasks; (b) Chin-style gas mask; <c) Chemical cartridge; construction; minimum require ment*. (a) Each respirator shall, where nec essary, be equipped with a suitable har ness designed and constructed to hold the components of the respirator In po sition against the wearer's body. (b) Harnesses shall be designed and constructed to permit easy reptoval and replacement of respirator parts, and, where applicable, provide for holding a full facepiece in the ready position when not In use. 1966. 8 11.180 Inhalation and exhalation valvca; minimum reqi. irements. (a) Inhalation and exhalation valves shall be protected against distortion. (b) Inhalation valves shall be designed and constructed and provided where necessary to prevent excessive exhaled air from adversely affecting cartridges, canisters, and filters. (c) Exhalation valves shall be: (1) Provided where necessary; (2) Protected against damage and ex (d) Air-purifying respirator with at 3 11.177 Respirator containers; mini ternal Influence; and, tached blower; and, mum requirement*. (3) Designed and constructed to pre (e> Other devices, including combina (a) Respirators shall be equipped with vent Inward leakage of contaminated air. tion respirators. a substantial, durable, container bearing 8 11.181 Head harnesses; minimum re 6 11.171 Pemkide respirator*; required component*. (a) Each pesticide respirator described In | 11.170 shall, where its design re quires, contain the following component parts: (1) Facepiece, mouthpiece, and noseclip, helmet, or hood; (2) Canister with filter; (3) Cartridge with filter; (4) Harness; markings which show the applicant's name, type, and commercial designation of the respirator It contains, and all ap propriate approval labels, (b) Containers for gas masks shall be designed and constructed to permit easy removal of the mask. g 11.178 Half-m**k facepieces, full facepieces, hood* and helmets, and mouthpiece*; fit; minimum require ment*. quirement*. (a) Facepieces shall be equipped with adjustable and replaceable head har nesses designed and constructed to pro vide adequate tension during use and an even distribution of pressure over the entire area In contact with the face. . (b) Mouthpieces shall be equipped, where applicable, with adjustable and replaceable harnesses designed end con structed to hold the mouthpiece in place. (5) Attached blower; and, (6) Breathing tube. (a) Half-mask faoepieees and full 8 11.182 Air velocity and noise level*; facepieces shall be designed and con hood* and helmet*; minimum re (b) The components of each pesticide structed to fit persons with various facial quirement*. respirator shall meet the minimum construction requirements set forth in Subpart G of this part. S 11.172 Canister* and cartridge* in pnrallel; re*i*tance requirement*. k Where two or more' canisters or car shapes and sizes either : (1) By providing more than one facepiece size, or (2) by providing one facepiece size which will fit varying facial shapes and sizes. ' (b) Full facepieces shall provide for optional use of corrective spectacles or lenses, which shall not reduce the Noise levels generated by the respira tor will be measured Inside the hood or helmet at maximum obtainable airflow and shall not exceed 80 dBA. 11.183 Pesticide respirators; perform ance requirements; general. tridges are used In parallel, their resist ance to airflow shall be essentially equal. { 11.173 Canister* and cartridge*; color and marking*; requirement*. The color and markings of all canis ters and cartridges or labels shall con form with the requirements of the American National Standard for Identi fication of Gss Mask Canisters. K13.1. 8 11.174 Filter* used with canister* end cartridge*; location; replacement. (a) Particulate matter filters used m conjunction with a canister or cartridge shall be located on the inlet side of the canister or cartridge. (b) Filters shall be incorporated Into or. firmly attached to the canister or car tridge and each filter assembly shall, where applicable, be designed to permit Its easy removal from and replacement on the canister or cartridge. 8 11.175 Breathing tubes; minimum requlremenU. respiratory protective quality of the respirator. (cl Hoods and helmets shall be de signed and constructed to fit persons with various head, sizes, permit optional use of corrective spectacles without re ducing the respiratory protective quali ties of the respirator, and Insure against any restriction of movement by the wearer. <d) Pesticide respirators with mouth pieces shall be equipped with nosecllps which are securely attached tc the mouthpiece or respirator and provide an airtight seal. (e) Facepieces, hoods, and helmets shall be designed to prevent eyepiece fogging. (f) Half-mask facepieces shall not Interfere with the fit of common Indus trial safety corrective spectacles as deter mined by the facepiece tests In 111.1833. 6 11.179 Facepieces, hoods, and hel Pesticide respirators and the individ ual components of each such device shall, appropriate, meet the requirements for performance and protection specified in the tests described In || 11.183-1 th-ough 11.183-7. 811.183-1 Breathing resistance test; minimum requirement*. (a) Airflow resistance will be meas ured In the facepiece, mouthpiece, hood, or helmet of a pesticide respirator mounted on a test fixture with air flow ing at a continuous rate of 85 liters per minute, both before and after each test conducted In accordance with If 11.183-4 and 11.183-7. (b) The maximum allowable resist ance requirements for pesticide respira tors are as follows: UAXIMVM RnpTANC* (mm. vftttr-Golaxna bd(bt) (a) Flexible breathing tubes used In conjunction with respirators shall be de signed and constructed to prevent; (1) Restriction of free head move ment; (2) Disturbance of the fit of facepieces, mouthpieces, hoods, or helmets; (3) Interference with the wearer's ac- Itlvitles; and. k (4) Shutoff of airflow due to kinking, or from chin or arm pressure. mets; eyepiece*; minimum require ment*. (a) Facepieces, hoods, and helmets shall be designed and constructed to pro vide adequate vision-which Is not dis torted by the eyepiece. <b> All eyepieces of gas masks shall be designed and constructed to meet the Impact and penetration requirements specified In Federal Specification, Mask, Air line: and Respirator, Air Filtering, Inhalation Erh*Type of Pmtldd* rwpintar lolttal Final1 proof- back-mounted CM nm Nm Powand ilr-porilying--............. 10 Cbamtcnl cartrtdf#.................... m 10 30 30 *30 < Mwuvl *t tod of tb* mtvW* HI* pcM la T*bW IJ. > Rabiunn of fllt*r(a). *itrtdf*(s). ind bmthinf tab(*) only with blow* not operating. 123 FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 15, T972 TEN 6362 RULES AND REGULATIONS 6271 S 11.183--2 Exhalation valve leakage teat; minimum requirement!. (a) Dry exhalation valve* and valve aeato will be subjected to a suction of 25 nun. water-column height while In a normal operating position. (b) Leakage between the valve and valve seat shall not exceed 30 mlmilters per minute. S 11.183--3 Facepiece teat; minimum re quirements. (d) The particle size distribution of the test suspension will have a geometric mean diameter of 0.4 to 0.8 micrometer, with a standard geometric deviation less than 2. (e) Front-mounted, back-mounted, and chin-style gas mask pesticide res pirators and chemical cartridge pesti cide respirators will be tested for 90 minutes and powered air-purifying res pirators will be tested for 4 hours. gas mask pesticide respirators will be tMted In an atmospheric concentration of 100 mlcrograms of dloctyl-phthalate per liter of air at continuous flow rates of 32 and 85 liters per minute for a test period of 5 to 10 seconds. (b) The DOP leakage through the canister shall not exceed 0.03 percent of the ambient DOP concentration. g 11.183--7 Bench teata; minimum re quirement!. (a) The complete pesticide respirator will be fitted to the .'aces of persons hav ing varying facial shapes and sizes. (b) Where the applicant specifies a facepiece size or sizes for his' respirator together with the approximate measure ments of faces they are designed to fit, the Bureau will provide test subjects to suit such facial measurements. g 11.183-5 Lead fume test; minimum requirements. Three completely assembled pesticide respirators will be tested with a mechanical-testing apparatus as follows: (a) Continuous airflow through the respirator will be 32 liters per minute for front-mounted, back-mounted, and chin-style gas mask pesticide respirators (a) (1) Bench tests will be made on an apparatus that allows the test atmos phere at S05 percent relative humidity and at room temperature (25*2.5* c.) to enter the canister or cartridge at pre determined concentrations and rates of flow, and that has a means for determin ing the test life of the canister or car tridge against carbon tetrachloride. (c) Any pesticide respirator part which and chemical cartridge pesticide res <2) Canisters and cartridges will be must be removed to perform the face- pirators and not less than 115 liters (4 tested as they are used on each pesticide piece fit test shall be replaceable without cubic feet) per minute, for powered air- respirator, either singly or In pairs. special tools and without disturbing face piece fit. id) The facepiece or mouthpiece fit test using positive or negative pressure purifying respirators with tight-fitting facepieces, and not less than 170 liters (8 cubic feet) per minute for powered air-purifying respirators with loose- (3) Three canisters or cartridges or pairs of cartridges will be removed from containers and tested as received from the applicant. recommended by the applicant and de fitting hoods and helmets. (4) Two canisters, cartridges, or pairs scribed in his Instructions will be used (b) The test aerosol will contain 15- of cartridges will be equilibrated at room during each test. 20 milligrams of freshly generated lead- temperature by passing 25 percent rela <e) (1) Each wearer will enter a cham oxide fume, calculated as lead, per cubic tive humidity air through them at the ber containing 1,000 ppm. isoamyl- meter of air. following flow rates (expressed as liters acetate vapor for a respirator equipped (c) The fume will be generated by Im per minute (l.p.m.)) for 6 hours: with a full facepiece, mouthpiece, hood, or helmet and 100 p.p.m. Isoamyl-acetate vapor for a respirator equipped with a half-mask facepiece. (2) The facepiece, mouthpiece, hood, or helmet may be adjusted. If necessary, in the test chamber before starting the test. (3) Each wearer will remain In the chamber while performing the follow ing activities: (I) Two minutes, nodding and turn ing head; (II) Two minutes, callsthenic arm movements; Oil) Two minutes, running In place; and, (lv) Two minutes, pumping with a tire pump Into a 28-llter (1 cubic-foot) container. (4) Each wearer shall not detect the odor of Isoamyl-acetate during the test. pinging an oxygen-gas flame on molten lead. (d) Front-mounted, back-mounted, and chin-style gas mask pesticide res pirators and chemical cartridge-pesticide respirators will be tested for 90 minutes and powered air-purifying pesticide res pirators will be tested for 4 hours. (e) The total amount of unretabled test suspension, which Is analyzed and calculated as lead, shall not exceed: (1) 0.43 milligram for any 90-minute test; (2) 4.8 milligrams for any 4-hour test made at 115 liters (4 cubic feet) per minute; or (3) 6.2 milligrams for any 4-hour test made at 170 liters (6 cubic feet) per minute. g 11.183-6 Dioctyl-phthalale leal; min imum requirementa. (a) All canisters submitted for use with front-mounted and back-mounted Type of canister Airflow or cartridge rate. l.p m. Alr-purUylng canister____________ 4 Air-pvuliying cartridge................. 2s Powered air-purifying with tight- fitting facaplaca.............................. l is Powr*d slr-purlfying with looee- flttlng hood or helmet....................... 170 (5) Two canisters, cartridges, or pairs of cartridges will be equilibrated at room temperature by passing 85 percent rela tive humidity air through them at the flow rates stated in subparagraph (4) of this paragraph for 8 hours. (8) The equilibrated canisters or car tridges will be resealed, kept In an up right position at room temperature, and tested within 18 hours. (b> Canisters and cartridges tested In accordance with the provisions of this section shall meet the requirements spec ified In Table 12. t 11.18S-r4 Silica dust test ;minimum re quirements. Three completely assembled pesticide Table 13.--Cabbok Titbacblobidb Bench Tom and Reuuibemints rom Canutes, and Caetxidqr.s (SO CFR Part 11, Subparl M, 111.1E3-7) respirators will be tasted with a mechanical-testing apparatus as fol Type of pesticide rupiretor Tut concentre- Flaw nb Minimum life, Uoos^g.p.m. l.p.m. NumberoftMte minutu1 lows: (a) Temperature In the test chamber Chut-mounted or back-mounted fee nut (u will be approximately 25* C. received)................................................................ 90s 000 04 9 13 <b) Continuous airflow through the Chut-mounted or bock-mounted gu maik (equil ibrated) ................................................................. 90,000 13 4 12 respirator will be 32 liters per minute Chlo-etyle gee meek (at received)........................ . for front-mounted, back-mounted, and Chln-atyle (Umiak (equilibrated).............. ............. Chemical-cartridge ruptraur (or received)............. 6,000 is 000 1,000 M 93 M 3 4 1 9 9 60 chin-style gas mask pesticide respirators Chemical-cartridge reeplntor (equilibrated)............ 1*000 92 4 60 and chemical cartridge pesticide respira tors, and not less than 115 (4 cubic feet) Powered elr-purifytog rupiretor (tight-fitting fecepiece, ea received)........................................... Powered elr-purifylng rupiretor (tltbt-fittlng 1,000 111 1 60 6 liters per minute to tight-fitting face pieces and 170 liters (8 cubic feet) per fecepiece, equilibrated)......................................... Powered elr-purilying rupiretor Oooce fitting baad or helmet ea received)...,..................................... 1,000 1.000 MU 170 4 9 3 60 minute to loose-fitting hoods and hel Powered elr-purilying reeplntor (loore-Stting bond mets of powered air-purifying respira or hairnet, equilibrated)........................................ uooo 1110 4 tors. (c) The teat aerosol will contain 50-80 milligrams of 90+ percent free silica per Minimum lib will be determined at S p.p.m. leakage. ' The Sow nU obeli bo the effective Sow rtteof the dovieo, but eboH bo not leu than Ilf Lpjw The Sow rate shell be the effect! ve flow ntaofthe devieo, but shell be not leu than 17V L p-mr cubic meter of air. (PR Doc W-illfiMod S-M-VM:* am) 124 OVOIKAL UQISTII, VOL 37, NO. SV--SATURDAY, MARCH 23, 1972 fEN 6363 APPENDIX C RESPIRATOR DRYING CABINET One 18 by 36 by 78-in. three-shelf steel cabinet with double doors Three 15-3/4 by 35-3/4 in. pieces of 1/4-in. stainless steel mesh for shelves One 10 by 10 in. piece of window screen for exhaust port One small portable electric heater with fan, 115 Vac, 1650 W Thirty-two size 10 eyebolts Thirty-two clothespins with metal hanging clips Thirty-two spring clips 0 to 180F thermometer Size 10 nuts and bolts. CABINET MODIFICATION On one side, near the bottom, cut p hole and bolt the heater in place. Make sure the heater has a three-wire (grounded) plug. In the top of the cabinet, cut an 8 bv 8-in. exhaust port and cover it with win dow screen. Cut away each shelf, leaving 1-1/2 in. at each edge, and bolt the stainless steel mesh in place. On the bottom and second shelves, screw the small eye bolts into this mesh about 3 in. apart, and spac ed so that 16 masks can hang in a double row from each shelf without touching each other. The clothespins hang from the eyebolts by specially fabricated metal clips. The thermometer is suspend ed by a small clamp. The temperature inside the cabinet is kept at 120 to 140F. After the cabinet has been loaded with masks, the temperature averages about 125F on the top shelf to 135F at the bottom of the low-hanging masks. The normal cabinet load is 10 to 15 full-face and 24 half-mask respirators and their filter holders. The greatest practical capacity, using both hangers and shelves, is 30 full-face or 60 half-mask respirators. The average drying time is 1 to 1-1/2 h. The total cost of materials and labor is less than $150.00. Figures C-lthrough C-3 show this cabinet. 125 lilN b3b4 1 i 126 TEN 6365 Figure C-3. Cabinet loaded with masks. TEN 6366 APPENDIX D QUANTITATIVE RESPIRATOR FITTING TEST PROCEDURES Except for procedures peculiar to instrument operation and calibration, quantitative respirator fitting tests are practically identical. The following is a suggested procedure for use in all types of test systems. I. PRELIMINARY CHECKOUT PRO CEDURES A. Start up and calibrate the test system accor ding to manufacturer's instructions. Be sure that the system is stable and that the aerosol or gas concen tration in the enclosure has reached equilibrium. B. Inspect all respirators to be used in the tests for defects and cleanness according to the procedures described in Chap. Nine. II. QUANTITATIVE FITTING TEST PROCEDURES A. Recheck the respirator before handing it to the test subject, paying particular attention to the sampling probe and line attached to the facepiece. B. Describe the test to the subject, making sure that he fully understands its purpose, the procedures, and the actions expected of him. C. If the subject is not familiar with wearing respirators, demonstrate correct wearing procedures. The subject's level of expertise usually becomes ap parent as he puts on the respirator. The untrained or poorly trained.subject will put the respirator on in correctly or be hesitant in his movements. D. Have the subject put on the respirator, accor ding to manufacturer's instructions. Be sure he does not tighten the headstraps to the point of discom fort. Remember that this test should approximate working conditions in which the subject might have to wear the respirator continuously for an hour or two at a time. In testing a half- or quarter-mask, check its com patibility with safety glasses. If the subject's safety glasses interfere, try other brands of respirators of the same type. The subject may have to wear a full facepiece, which provides eye protection, if a half- or quarter-mask compatible with safety glasses cannot be found. E. Once it has been determined that the respirator is worn properly, the fit can be checked quickly using a qualitative fitting test. Make sure that the correct filter, cartridge, or canister for the particular test is installed in the respirator. Also make sure that the subject pinches off the sampling hose. If leakage is detected, try to determine its source and cause. If the leakage is from a poorly fit ting facepiece, try another brand of the same type of respirator. In fact, several different brands of respirators should be made available so the subject can choose the most comfortable, a very important aspect of fitting respirators. F. After the best possible qualitative fit has been obtained, the subject enters the test enclosure and connects the sampling hose. If necessary, and without disturbing the facepiece fit, replace the filter, cartridge, or canister used during the qualitative test with the air-purifying element re quired for the, quantitative test. To minimize filter leakage, use high-efficiency particulate filters when the test agent is an aerosol. Allow enough time (2-3 min) at this point for the test enclosure concentra tion to stabilize. Then recheck the test system calibration. G. In response to verbal instructions, the subject begins head and facial movements simulating those made during normal work. (1) Normal breathing with head motionless for 1 min; (2) Deep breathing (simulating that during hard work) with head motionless for 30 seconds. Do not prolong this exercise because of the danger of hyperventilation; (3) Turning head slowly from side to side while breathing normally, pausing for at least two breaths before changing direction. Continue for at least 1 min; (4) Moving head slowly up and down while breathing normally, pausing for at least two breaths before changing direction. Continue for at least 1 min; (5) Reading from a prepared text, slowly and clearly, and loudly enough to be heard and un derstood by the test operator. Continue for 1 min; fEN 6367 129 (6) Normal breathing with head motionless for at least 1 min. These exercises are more or less "standard" and have been found to provide a meaningful evaluation of respirator performance. Therefore, if they are us ed, the data can be compared with published infor mation. The times suggested for each are minimal and may be extended if needed to obtain better data. H. After the test, the subject leaves the test enclosure and removes the repirator. The operator should then ask about the respirator comfort and note any marks on the subject's face which indicate pressure points. If the test indicated a good fit, any discomfort may be due to a mismatch between the subject and the facepiece or to headstraps that are too tight. Every effort should be made to provide the most comfortable respirator possible. I. The test results may be analyzed and the protection level determined by one of two methods. The first involves watching a meter during the test to determine that penetration does not exceed a cer tain value. On the basis of a protection factor (PF) of 10 for respirators with half- and quarter-mask facepieces and 50 for those with full facepieces, max imum penetrations by the test agent should not significantly exceed 10 and 2%, respectively. A cer tain amount of professional judgment is involved in using this method. The second, much preferred, method is to record the entire test using a strip chart recorder operated at a chart speed of about 2 in. per min. Figure D-l is a simulated recording that illustrates most of the things likely to occur in a test. Starting at the bottom of Fig. D-l, the first infor mation should uniquely identify the test by number, date, subject, and type of respirator. Next comes the test system calibration after the subject has entered the test enclosure, to establish the maximum span of the penetration-measuring instrument ("100%" calibration). This should be done at least twice to ensure that the calibration is correct. Next follow the five exercises, separated by horizontal lines across the chart. As the penetrationmeasuring instrument has several ranges, the range should be shown next to the right margin of the chart. When it becomes necessary to change the penetration range, as in the example under turning head from side to side (TH), make a short mark where the change was made and indicate the new scale setting. Each exercise should be identified by some nota tion. In Fig. D-l the following were used. Figure D-l. Typical quantitative fitting test strip chart recording. Normal breathing Deep breathing Turning head from side to side Moving head up and down Talking NB DB TH UD T 130 I'JtN 6308 These are suggested notations; others may be used, but they should be consistent. All the above notations should be made during the test. However, it is neither necessary nor desirable to calculate the penetrations until later. The operator should pay full attention to running the equipment and noting the subject's actions during the test. The cyclic nature of the recorder trace is a func tion of the subject's breathing cycle. As this example shows, in an air-purifying respirator with a half mask, negative air pressure created in the facepiece during inhalation increases the leakage. Exhalation creates slightly positive air pressure, reducing the leakage. Also, the lungs absorb some of the test agent, especially if it is an aerosol, thus reducing the quantity of test agent in the exhaled breath. Conse quently, the maximum penetration during inhala tion indicates the fraction of ambient concentration which has penetrated the facepiece. Therefore respirator performance is based on the average of the peak penetrations. After the test, the operator may analyze the recor ding. This is done, treating each exercise separately, by drawing a line through the inhalation peaks to approximate their average. The midpoint of each line is the "average peak penetration" for the exer cise. This number should be entered on the chart for each exercise. Where the penetration changes abruptly, as in Fig. D-l during the moving head up and down (UD) exercise, it is usually advantageous to split the data into more than one section and treat each separately. In the example, five chart divisions under UD showed a penetration of 2.55% and three showed 3.75%. The average peak penetration for the entire exercise is calculated as follows. 5 divisions x 2.55 = 12.75 3 divisions x 3.75 = 11.25 8 divisions 24.00 24.00/8 = 3.00% peak average penetration. After the average peak penetration has been calculated for each exercise, the data may be entered on the fitting test record, shown in Fig. D-2. This form is only a suggestion, other formats may be devised to better meet individual needs. Shown in Fig. D-2 on lines (l)-(3), is the informa tion from the recorder chart which uniquely iden tifies the test. Lines (4) and (5) show the results of the qualitative pretest. In this case, the subject did not have a qualitative fit and had to readjust the respirator or tighten the headstraps. As line (5) shows, he then obtained a satisfactory seal. Line (6) indicates that the subject was able to wear safety glasses with the particular respirator without in- a> tt . 173 QUANTITATIVE TITTlNC TEST (It D. Smt+h_________ ________________ (1) ftHpirator^. ABd Hair Mask-------------- : HI Qualitative freest! Tw-S-fr- Fin tw X (SI tefiti Tea y we HI cpwjitlble with eefety flaeien Tee No TEST KUtttTf NmnIm H) Nonel Brsethiny () Beep Breethief Peek Average Penetration O S/ _ n.7(= (t| Tenting Need free Side to Side (It) Having Need Up end Sown (11) Talking / 5 3. OO 4.ZS 03) AVtXAGti Allowable /O % Teat Average. / *5 . 03) TJTi Batlafaetorv ^ Bnaatlalactorv___ 04) contort BAtingi 1> 4B Figure D-2. Fitting test record. terference. This is important information as most workers are now required to wear eye protection. Lines (7)-(ll) show the average peak penetrations calculated for each exercise. Line (12) shows the test criterion expressed as the maximum allowable average peak penetration. This is 10%, as the test in volved an air-purifying respirator with a half-mask facepiece. Line (12) also shows the test average peak penetration of 1.95% obtained by averaging the average peak penetrations for each exercise. Line (13) shows whether the overall performance was satisfactory or not. This determination is based on the qualitative fit, compatibility with safety glasses, and average penetration, which in this example had to be less than 10%. The subjective evaluation of the comfort of the particular respirator, shown on line (14), is based on the criteria shown in Fig. D-3. All other factors being equal, final choice of a respirator should be based on comfort. A worker should not be required to wear a device he considers "uncomfortable" or "in tolerable." He may wear a "barely comfortable" respirator if the proposed usage is intermittent for short periods. TEN 6369 131 1. mr COMFORTABLE MASK CAN BE WORN FOR AN INDEFINITE PERIOD WITHOUT BECOMING UNBEARABLY BOTHERSOME OR PAINFUL, NO PAIN POINTS; MASK FEELS COMFORTABLE * 2. COMFORTABLE MASK CAN BE WORN FOR 2 TO 4 HOURS WITHOUT UNSUE DISCOMFORT. SOKE PRESSURE POINTS WITH SLICHT DISCOMFORT. 3. RARELY COMFORTABLE MASK CAN BE WORN FOR APPROXIMATELY 1/2 HOUR TO 1 HOUR WITHOUT INTOLERABLE DISCOMFORT. SOME DISCOMFORT FROM PRESSURE. 4. UNCOMFORTABLE MASK CAN BE TOLERATED FOR THE PERIOD OF THE TEST ONLY. 3. INTOLERABLE MASK CANNOT BE WORM AT ALL WITHOUT DISCOMFORT, In summary, the above is a suggested procedure for conducting a quantitative respirator fitting test, evaluating the results, and recording the data meaningfully, without laborious record keeping. Moreover, the data will be compatible with those from other work. NOTEt TM tibi* can b* y*4 a* th* proarrt t*t far tha talking" imrint th* <tuatleaeiva flttl** t*it. 7>ii vUl mn eh# (l*i tor th* object ta Acquaint hivtilf with tMi table iftir tb* (tit. Figure D-3. Respirator comfort ratings. 132 TEN 6370 APPENDIX E QUANTITATIVE RESPIRATOR FITTING TEST EQUIPMENT Both NaCl and DOP aerosol systems are commer cially available (1975) from Air Techniques, Inc,, 1717 Whitehead Road, Baltimore, MD 21207 and Frontier Enterprises, Inc., Box 30041, Albuquerque, NM 87110. The systems these concerns make differ little from the basic designs developed by the Los Alamos Scientific Laboratory (LASL). The cost may vary, depending upon accessories, but it is generally about $8-10,000. Both the NaCl and DOP systems consist of an aerosol generation and dilution air system, an analyzing system, and a test enclosure. Figure E-l illustrates a typical NaCl test system consisting of an internal or external compressed air source (1) that provides clean air at 50-100 psig to the aerosol generators (2) and combustion air to the burner (12). A Wright-design nebulizer is used in all commercial systems and has been adopted as the standard means of generating an NaCl aerosol. Operated at 24 psi with a 1% NaCl solution, it produces an aerosol with an aerodynamic mass me dian diameter (AMMD) of 0.6 jim. Two nebulizers are provided in most systems, although the output from one is sufficient for most purposes. The aerosol generator injects the liquid droplets perpendicularly into the air stream flowing through the mixing and drying chamber (3), in Fig. E-l. The air for drying the aerosol (~4 cfm) is supplied by an internal blower ahead of which is mounted a highefficiency filter. In passing through the mixing and drying chamber, the liquid NaCl droplets dry into discrete solid particles that are carried in the aerosol stream to the test enclosure. In this instance, the enclosure (5) is a test hood that covers the subject down to his waist, but particles also could be delivered to a small chamber. This test hood, based on a Harvard School of Public Health design, is com mercially available. The aerosol is delivered to the center top of the hood. Directly below the inlet is a Figure E-l. NaCl quantitative fitting test system schematic. fEN 6371 133 small circular plate that helps distribute the aerosol stream evenly inside the hood. Even distribution is further ensured by a large perforated plate that forms the bottom of the aerosol distribution section. The chamber part of the hood is made of two, slightly separated, cylindrical walls of thin, transparent plastic. At the bottom of the outer wall is a cloth skirt that can be drawn snugly around the subject's waist to minimize leakage into the surroun ding area. The aerosol is exhausted through the an nular space between the inner and outer walls. As Fig. E-l shows, two sampling tubes lead from the hood to the aerosol analyzing system. One tube (6) samples the concentration of NaCl aerosol par ticles in the chamber atmosphere, and it is used in calibrating the flame photometer. The other tube (7) samples the NaCl aerosol particles in the air inside the respirator. A peristaltic (tubing) pump (9) is used to inject the sample into the flame photometer burner (10). On the inlet side of this pump are connected the sampling tubes from the test hood as well as a third sampling tube which is connected to a small highefficiency filter. This tube and filter (8) supply clean sampling air to the burner to calibrate the photometer. Combustion air for the burner (10) is supplied from the external or internal compressed air source (1), and the propane fuel is supplied from an exter nal tank (11). The amount of NaCl in the sample stream is determined by vaporizing the NaCl par ticles in the burner and detecting the emitted yellow light characteristic of sodium by using a sensitive photomultiplier tube (12) ahead of which is placed an optical filter (13) that passes only the sodium emission lines. The light intensity is directly related to the concentration of NaCl aerosol particles. The photomultiplier tube output is fed into the electronics (14) of the test system analyzing section, and the amount of aerosol in the sampled air is dis played as percentage of the ambient concentration in the hood, either on a meter or a separate strip chart recorder (15). The DOP quantitative respirator fitting test system is very like the NaCl system. As Fig, E-2 shows, an internal or external compressed air source (1) supplies 3- to 5-psig air to the Naval Research Laboratory Model III design DOP generator (2) and LASL-designed round jet impactor (3). The equivalent generator and impactor are found in com mercial systems, but external construction details may differ. The output from the generator and impactor assembly is injected into the dilution air chamber (4), perpendicularly to the air flowing through this chamber. The purpose is not to dry the aerosol, as it >' s Figure E-2, DOP quantitative fitting test system schematic. 134 1EN bill is an oil mist, but to reduce the aerosol mass concen tration to an acceptable level and maintain ade quate air flow to the test enclosure. The test enclosure (6) is identical to that for the NaCl system, and two sampling tubes sample the DOP aerosol in the hood and the interior of the respirator. A third sampling tube outside the test hood is connected to a small high-efficiency filter (9) to provide clean air to the forward light-scattering photometer (10). The amount of DOP aerosol in the sample stream is determined by the intensity of the light scattered forward from particles passing through the center of the conical scattering chamber. This light strikes the photomultiplier tube (12), and the tube output is fed into the electronic section (13) of the analyzer which is almost identical to that used in the NaCl system. The DOP concentration in the sample stream from the respirator, expressed as a percentage of the concentration in the test hood is displayed either on a meter or on a separate strip chart recorder (14). This description applies primarily to the prototype units designed and built at LASL, upon which the commercial systems are based. Im provements and changes are made continually, so presently available systems may not look like those described. The important point is that the hearts of these systems, the aerosol generators, are identical in all respects. In summary, these quantitative respirator fitting test systems provide the ultimate method for deter mining respirator fit. However, it is unrealistic to suggest that every respirator program have this capability. These systems are expensive and com plex and require trained operators. Therefore, they are most widely used by industrial firms that have very comprehensive respirator programs. On the other hand, if a small industrial firm must protect workers against highly toxic contaminants, the ex penditure for a quantitative respirator fit test system may be justified. TEN 6373 135 APPENDIX F JOINT NIOSH/OSHA STANDARDS COMPLETION PROGRAM RESPIRATOR DECISION LOGIC IS AUGUST 1975 t, TMTPiimjf.Tiati THE PURPOSE OF TMf RESPIRATOR DECISION LOGIC IS TO ASSURE TECHNICAL ACCURACY AND UNIFORMITY SET-EEN SUHSTANCF.S In TME SELECTION OF RESPIRATORS And TO PROVIDE NECESSARY CRITERIA TO SUPPORT THIS SELECTION, THE DECISION LOGIC IS A STEP-RY-STEP ELIMINATION OF INAPPROPRIATE RESPIRATORS UNTIL ONLY THOSE WHICH ARE ACCEPTABLE REMAIN, JUDGEMENT BY PERSONS KNOWLEDGEABLE OF INHALATION HAZARDS AND RESPIRATORY PROTECTION EOUIPMENT IS ESSENTIAL, to ENSURE APPROPRIATE SELECTION OE RESPIRATORS, THE PRIMARY TECHNICAL CRITERIA FOR what CONSTITUTES A PERMISSIBLE RF3PIRA TOR IS BASED ON THE TECHNICAL REQUIREMENTS OF 30 CFR PART 11 (DEPARTMENT OF THE INTERIOR. BUREAU (iF MINES, RESPIRATORY PROTECTIVE DEVICES AND TESTS FOR PERMISSIBILITY), THE PROPOSED SUBSTANCE HEALTH STANDARDS WILL ALLU- ONLY RESPIRATORS APPROVED BY TME BUREAU OF MINES (OR MINING ENFORCEMENT and SAFETY ADMINISTRATION (MESA)) AND NIOSH UNDER 30 CFR 11, PROTECTION FACTORS ARE CRITERIA USED IN DETERMINING WHAT LIMITING CONCENTRATIONS ARE TO ME RERmITTEO FOR EACH RESPIRATOR TYPE THAT WILL AFFORD ADEOUATE PROTECTION TO THE WEARER, THE REFERENCED SUBPARTS 30 CFR 11 GIVE TECHNICAL DESCRIPTIONS CONCERNING EACH TYPE OR CLASS OE RESPIRATORS REFERENCED IN THE OECISION LOGIC. 30 CFR 11 SHOULD BE USED WITH THE DECISION LOGIC IN ORDER TO PROPERLY UNDERSTAND THE CRITERIA FUR THE SPECIFICATION OF ALLOWABLE RESPIRATORS, BTFB 1 - tiT__etwFBAL nceiMitni iogip fi omcnabt twFUBMATTnw nil BUHBTAwrF. assemble necessary toxicological safety, and research information for the PARTICULAR contaminant, typically THE FOLLOWING ARE REGUIREDI 1) PERMISSIBLE EXPOSURE LIMITS SPECIFIED in J9 CFR 1910,1000 (TABLES Z-l, Z-2, and 2-1). THESE are THE FORMER 29 CFR 1910,93 TABLES, 2) WARNING PROPERTIES IF THE SUBSTANCE IS A GAS OR A VAPOR, REFER 70 PART IV(B) OF THIS LOGIC, 3) EYE IRRITATION POTENTIAL UF THE SUBSTANCE. REFER TO PART !V(D) OF THIS LOGIC. 4) IFL (LOWER FLAMMABLE LIMIT) FOR THE SUBSTANCE, REFER TO PART 1v(f) of this logic, 5) IDLM CONCENTRATION FOR THE SUBSTANCE, REFER TO PART JV(E) OF THIS LOGIC, ) POSSIBILITY OF POOR SORBENT EFFICIENCY AT IDLH CONCENTRATION AND BELOW, REFER TO PART 1V(C) OF THIS LOGIC, TEN 6374 137 7) ANY FVIOfcNCfc OF POSSIBLE SYSTEMIC INJURY OR DEATH RESULTING FROM ABSORBANCE OF The SuhSTancF (AS A GAS OR VaPQR) THROUGH THE SKIN. REFER TO PART I w ( a ) OF THIS LOGIC, s) the vapor pressure of The substance (and equivalent pphj. *t,fP t nf IlSMlliF -EHVsical .STATF_nF-SuaSJtAism, DETERMINE THE PHYSICAL STATE(S) OF THE SUBSTANCE AS IT IS LIKELY TO Be FnCOUnTEhEO In THE OCCUPATIONAL EnvIRUnmEnT, IT WILL BE EITHER! A) GAS OR VAPqR, B) PARTICULATE (DUST, FUHF OR HIST), OR C) COMBINATION OF (A) AND (B), RTER-3. a_A_33E_3tti-E_ A_IABLF -QE PFHMi.KS tBLF -RE.KP IR AYQB Y EaoiLcma-EQ.auasiAtiic THIS IS DONE USING THE MATERIAL FROM STEP t AND THE APPROPRIATE SPECIFIC DECISION LOGIC CHART FROM PART III OF THIS LOGIC ANO THE RESPIRATOR PROTECTION FACTORS IN APPENDIX I, III,A, SEiriFTr fl FILLS I ON -L flG I C_CH AB T FlJB _BF BP I H AlflB V P-aoTmiUN-ACiiaisT aiaj.s-ua-iioiis fnunutnn SfJ.EC llQU~&JlUgUCL ROUTINE use A) CONSIDER skin SORPTION - (SEE IV A), fl) POOR WARNING PROPERTIES * ELIMINATE ALL air PURIFYING RESPIRATORS (SEE IV 0), C) EYE IRRITATION . ELIMINATE OR RESTRICT USE OF half mask RESPIRATOR (SEE IV 0), 0) IOLW OR LFL ABOVE THIS CONCENTRATION ELIMINATE ALL dUT POSITIVE PRESSURE SELF-CONTAINED BREATHING APPARATUS and COMBINATION POSITIVE PRESSURE SELF-CONTAINFD BREATHING APPARATUS (SEE IV C ANO F), E) LIST ALL ALLOnED RE3PIRAT0HS BY CONDITION OF USE AND TYPE, ENTRY AND escape from unknown CONCENTRATIONS FIREFIGHTING use POSITIVE PRESSURE SELF-CONTAINED breathing APPARATUS OR COMBINATION POSITIVE PRESSURE SUPPLIED AIR RESPIRATOR WITH POSITIVE PRESSURE SELF-CONTAINED BREATHING APPARATUS, use POSITIVE PRESSURE SELF-CONTAINED BREATHING apparatus. ESCAPE GAS HA9K or ESCAPE SELF-CONTAINED BREATHING APPARATUS (SEE IV C), in.8, COAlQIIJUAI aegCLEir nFfTSTON inr.Tr chart fob bebptbatorv eaiciinMl.iri>in,,iT..PtaiiajuiL3 sfj-CUhn- srnuFMrr ROUTINE USE A) CUMSIOtR SKIn SORPTION - (SEE IV A), B) EYE IRRITATION - ELIMINATE OR RESTRICT USE OF HALF MASK RESPIRATOR (SEE IV D), 138 rEN 6375 ENTRY AND ESCAPE FROM Unknown CONCENTRATION PIREPICHTING C) SYSTEMIC POISON ELIMINATE SINGLE-USE RESPIRATOR, o) row permissible exposure less than o.os mg/cu,m, - ELIMINATE OEM RESPIRATORS EXCEPT wITh MIGH EFFICIENCY PARTICULATE FILTER,' EJ IDLM OR LEL - ABOVE this CONCENTRATION ELIMINATE all but positive pressure self-containfd breathing APPARATUS and COMBINATION POSITIVE PRESSURE SELFCONTAINED BREATHING APPARATUS (SEE IV E), P) LIST ALL ALLOWED RESPIRATORS BY CONDITION OP USE AND TYPE, USE POSITIVE PRESSURE SELF-CONTAINFD BREATHING APPARATUS OR COMBINATION POSITIVE PRESSURE SUPPLIED Atft RESPIRATOR WITH POSITIVE PRESSURE SELF-CONTAINED BREATHING APPARATUS, USE POSITIVE PRESSURE SELF-CONTAINED BREATHING APPARATUS (SEE IV F), 111 , c , aBECIE.IC_DEfliainN_LOGTr I-HAHT F fiP RFBPIRAtOB* PBnTFWTintl AGllM3I.rnrtRlNAl.inN fIF CAS UR VAPtlfl -AND. PABltrm ATF CflNntUflM atlfrT.JQHI.SFflllEBCE ROUTINE USE entry and escape from UNKNOWN CONCENTRATION firefighting escape AJ CONSIDER Skin SORPTION - (SEE IV A). a) POOR WARNING properties OR INADEQUATE SORBENT EFFICIENCY ELIMINATE ALL air c),purifying respirators (sfe iv b t C) eliminate all RESPIRATORS EXCEPT WITH COMBINATION SORBENT/PARTICULATE filter, D) EYE IRRITATION - ELIMINATE OR RESTRICT USE OF HALF MASK RESPIRATOR (SEE IV D), E) FOR PERMISSIBLE EXPOSURES LESS THAN 0*05 MG/CU.M, ELIMINATE ALL RESPIRATORS EXCEPT WITH SOWBENT/HIGH EFFICIENCY PARTICULATE FILTER, F) IOLH OR LFL ABOVE THIS CONCENTRATION ELIMINATE ALL BUT POSITIVE PRESSURE SELF-CONTAINED SRfATHlNC APPARATUS and COMBINATION POSITIVE PRESSURE self-contained breathing apparatus (Bee iv it, G) LtST all ALLOWED RESPIRATORS BY CONDITION OF USE AND TYPE, USE POSITIVE PRESSURE SELF-CONTAINED BREATHING APPARATUS OR COMBINATION POSITIVE PRESSURE SUPPLIED AIR RESPIRATOR WITH POSITIVE PRESSURE SELF-CONTAINED BREATHING APRARATUS, USE'POSITIVE PRESSURE SEtT-CONTAlNED BTIEATmInG APPARATUS (SEE IV F), GAS MASK OR ESCAPE SELF-CONTAINED BREATHING APPARATUS (SEE IV C), I bN 63 /0 139 LX. .A, a&XM-iOUiDg Pit Clin PERSONAL pnOTECTIOM REQUIREMENTS Fob PRDtECTION AGAINST EXPOSURE TO 3URSTANCES WHICH HAY CAUSE INJURY BY ABSORPTION THROUGH THE SKIN FROM HATERIALS SPLASHtn OR SPILLED ON the SKIN ARE COVEHEO IN SECTION (F) OF EACH SuHSTanCE STANDARD, RESPIRATOR SELECTION CRITERIA ARE BASED PRIMARILY UN THE INHALATION HAZARD UF THE SUBSTANCE, A SUPPLIED-AIR SUIT may PROVIDE BOTH SKIn AND RESPIRATORY PROTECTION FOR EXTREhELV TOXIC SUBSTANCES which may he ABSORBED THROUGH THE SKIN, SUPPLIED.AIR SUITS ARE NOT COVERED IN JO CFR 11, DAT* AE NOT AVAILABLE UPON .HICH Tli MAKE RECOMMENDATIONS FOR SUPPLlfcD-AlR-SUlTS FOR ALL TYPES OF EXPOSURES, WHERE information IS AVAILABLE INDICATING SYSTEMIC INJURY OR DEATH RESULTING FROM ABSORBANGE OE A GAS OH VAPflR THROUGH THE SKIN., THE FOLLOWING STATEMENT IS INCLUDED IN APPENDIX H, SECTION (V) OF THE SUBSTANCE STANDAR01 "USE OF SUPPLIED.AIR SUITS OR OTHER IMPERVIOUS COVERINGS MAV BE NECFsSARY TO PREVENT SKIn CONTACT WITH a whEN THE CONCENTRATION OF * IS UNKNOWN UR GRFATER than ** (1DLH), SUPPLIED-AIR SUITS SHOULD BE SELECTED, USED, AND MAINTAINED UNDER THE IMMEDIATE SUPERVISION OF PFRSOnS KNOWLEDGEABLE IN ThF LIMITATIONS and POTENTIAL LIFE ENDANGFRiNG CHARACTERISTICS OF SuPPLItO-AJR SUITS," A SFnTFnCE IS ADDED To ThE RESPIRATOR TABLE In THE ENTRY AND ESCAPE' FRUH UNKNOWN CONCENTRATIONS SECTION AS SHOWN BELOW| SELF-CONTAINED BREATHING APPARATUS wITH A FULL FACEPIECE OPERATED In PRESSURE-DEMAND OR OTHER POSITIVE PRESSURE HOOE, A COMBINATION RESPIRATOR WHICH INCLUDES A TYPE C SUPPLIED-AIR RESPIRATOR WITH A FULL FaCERIFCI OPERATED in PRESSURE-DEMAND OR other POSITIVE PRESSURE OR CONTINUOUS FLOW mode AND AN AUXILIARY SELF-CONTAINED BREATHING APPARATUS OPEHATEO In PRESSURE-DEHAND MODE OR OTHER POSITIVE PRESSURE MODE, CSuPPLIED-aIR SUITS H*Y BE necESSaRy,) IT IS IMPORTANT TO REALIZE THAT 30 CFR U NIOSH/mESA APPROVALS FOR AIR-PIJRIFVING (ORGANIC VAPOR) DEVICES PROHIBIT USE AGAINST ORGANIC VAPORS WITH POOH WARNING PROPERTIES, SPECIFICALLY, 30 CFR 11.90(B) (NOTE t) COVERS GAS MASKS (CANISTER RESPIRATORS) AND 30 CFR 11,150 (NOTE 7) COVERS ChEmKAL CARTRIDGE RESPIRATORS, THUS THESE APPROVALS ARE ONLY for THOSE ORGANIC VAPORS with ADEQUATE warning PROPERTIES AND NOT ALL ORGANIC VAPORS, WARNING PROPERTIES RELYtNG UPON human SENSES ARE NOT FOOLPROOF, however, They PROVIDE SOME INDICATION TO THE EMPLOYEE OF POSSIBLE SORBENT EXHAUSTION OR OF POOR FACEPIECE FIT OR OTHER RFSPIRATOR MALFUNCTION, warning PROPERTIES INCLUDE ODOR. EV| IRRITATION, AND RESPIRATORY;IRRITATION, ADEQUATE WARNING PROPERTIES CAN BE ASSUMED WHEN THE SUBSTANCE OOOR, TASTE, OR IRRITATION EFFECTS ARE DETECTABLE AnD PERSISTENT AT CONCENTRATIONS "AT" (1R "BELOw" THE PERMISSIBLE EXPOSURE LIMIT, IF THE ODOR ON IRRITATION THRESHOLD OF A SUBSTANCE IS MANY TIMES GREATER Than ThE PERMISSIBLE EXPOSURF LIMIT, THIS SUBSTANCE SHOULD BE CONSlnEFO TO HAVE POOR WARNING PROPERTIES, IF THE SUBSTANCE OOOR OR IRRITATION THRESHOLD IS Somewhat aOVE THE PERMISSIBLE EXPOSURE LIMIT (NOT IN EXCESS 0F THREE TIMES THE LIMIT) and THERE IS NO CEILING LIMIT, CONSIDERATION is GIVEN 13 TO WHETHER OR NOT UNDETECTED EXPOSURE IN THIS CONCENTRATION RANGE COULD CAUSE SERIOUS OR IRREVERSIBIC HEALTH EFFECTS, IF NOT, THE SUBSTANCE IS CONSIDERED TO HAVE ADEQUATE WARNING PROPERTIES, 140 TEN 6377 IT IS EXPECTED that environmental CONCENTRATIONS NHL VARY CONSIDERABLY AND, TMEfEORF, naRNing OF A RESPIRATOR FAILURE MOULD BE PERCEIVED at contaminant concentrations somewhat above THE PFRHISSIBLF EXPOSURE LIMIT, SOON JX..U SORflFNT FFFTf.TFNrTFB NMERE SUPPORTING EVIDENCE EXISTS ON IMMEDIATE (LESS THAN THREE MINUTES) BREAKTHROUGH TIME AT THE IDLH CONCENTRATION ANO BELOW FOR CARTRIDGE OR CANISTER SORBENT, AIR.PURIFYING DEVICES SHALL NOT BE allowed For any use, escape or otherwise, A HU--0, FOR ROUTINE WORK OPERATIONS, ANY PERCEPTIBLE EYE IRRITATION IS CONSIDERED UNACCEPTABLE, THEREFORE, only FULL FACEP1FCF RESPIRATORS ARE PERMISSIBLE IN CONTAMINANT CONCENTRATIONS WHICH PRODUCE EYE IRRITATION, NOTE THAT JO CFR 11,90(B)(NOTE 4>) SPECIFIES THAT EYE PROTECTION May BE RFUUIREO IN CERTAIN CONCENTRATIONS OF ACID GASES AND ORGANIC VAPORS, FOR ESCAPE, SOME EVE IRRITATION IS PERMISSIBLE IF IT IS DETERMINED THAT SUCH IRRITATION WOULD NOT INHIBIT ESCAPE AND SUCH IRRITATION IS REVERSIBLE, WMERF QUANTITATIVE EVE IRRITATION DATA CANNOT BE FOUND IN LITERATURE REFERFNCES. AND THEORFTICAL CONSIDERATIONS INDICATE THE SUBSTANCE SHOULD NOT BE an eye IRRITANT, HALF FACEPIECE RESPIRATORS are ALLOWED, tvt- f, idlm The DEFINITION OF IDLH PROVIDED IN JO. CfR U,J(T) IS AS FOLLQwSi immediately dangerous to life or health* means conditions that POSE AN Immediate threat TO LIFE OR HEALTH uR CONDITIONS THAT POSE AN ImmfdIATE THREAT OF SEVERE EXPOSURE TO CONTAMINANTS. SUCH AS RADIOACTIVE MATERIALS, WHICH ARE LIKFLY TO HAVE ADVERSE CUMULATIVE UR DELAYED EFFECTS On HEALTH, THE PURPOSE OP ESTABLISHING AN IDLH EXPOSURE CONCENTRATION IS TO INSURE THAT THE WORKER Can ESCAPE wITmquT InjURV OR IRREVERSIBLE HEALTH EFFECTS FROM An IDLH CONCENTRATION IN THE EVENT OF FAILURE OF THE RESPIRATORY PROTECTIVE EQUIPMENT, THE IDLH IS CONSIDERED A MAXIMUM CONCENTRATION ABOVE WHICH ONLY HIGHLY RELIABLE BREATHING APPARATUS PROVIDING MAXIMUM WORKER PROTECTION IS PERMITTED, SINCE IDLH VALUES ARE CONSERVATIVELY SET, ANY APPROVED RESPIRATOR MAY BE USED UP To ITS MAXIMUM USE CONCENTRATION BfLOW THE IDLH, IN ESTABLISHING THE IDLH CONCENTRATION THE FOLLOWING FACTORS ARE CONSIOEHEOl 1, ESCAPE without LOSS OP LIFE OR IRREVERSIBLE HEALTH EFFECTS, THIRTY MINUTES IS CONSIDERED THE "MAXIMUM PERMISSIBLE EXPOSURE TIME FOR ESCAPE, 2, severe eye or respiratory irritation or other reactions WHICH WOULD INHIBIT FSCAPE WITHOUT INJURY, IBLM SHOULD BE DFTERMInED FROM ThE following sourcesi i. SPECIFIC IDLH PROVIDED IN THE LITERATURE SUCH AS THE AlHA HYGIENIC GUIDES. 2, HUMAN EXPOSURE OATA, TEN 6378 141 J ACUTE animal EXPOSURE DATA# a, where such data are Lacking tnxICOLOGICal data from ANALOGOUS SUBSTANCES, AnO CHRONIC ANIMAL EXPOSURE DATA HAY RE CONSIDERED, THE FOLLOWING GUIDELINES SHOULD HE USED TO INTERPRET TOXICOLOGICAL DATA REPORTED In THE LlTFRATURF FOR ANIMAL SPtClESl 1, wmenF ACUTE EXPOSURE anJm*l DATa ARE AVAILABLE (30 MINUTES TO 41-MOUW EXPOSURES), THE LOWEST EXPOSURE CONCENTRATION causing death ijr irreversible health effects in any SPECIES IS DETERMINED TO BE THE IDLH CONCENTRATION, 2. nhfrf only chronic exposure data are available and these data 00 NOT REVEAL any exposure concentration which WOULD result in IRREVERSIBLE health EFFECTS, THEN THESE DATA HAVE NO RELEVANCE AND SHOULD NOT BE USED-In DETERMINING THE IOLH CONCENTRATION, where THERE IS evidence of AN IDLH CONCENTRATION ABCIVg THAT ALLOWED ON THE BASIS OF A PROTECTION FACTOR, RESPIRATORS SHOULD BE SELECTED ON THE BASIS OF THE PROTECTION FACTOR AFFORDED BY EACH DEVICE WITHIN THE' LIMITATIONS OF THE DEVICE, LQhFR -Ft AHMARI F LTHTT A Nr. F TRY F I.CHT ;Nfi CONTAMINANT CONCENTRATIONS In EXCESS OE THE LFl ARE CONSIDERED TO BE IMMEDIATELY DANGEROUS TO LIFE 0 HEALTH, AT OR ABOVE THE LFL# Th USE OF RESPIRATORS IS LJMITEO TO THOSE DEVICES which PROVIDE THE MAXIMUM PROTECTION, I ,E# # POSITIVE-PRESSURE 3C8A, AND COMBINATION POSlTIVEPRESSURF SUPPLIED-AIR RESPIRATOR with POSITIVE PRFSSUPE SCBA, FIREFIGHTING IS DEFINED BY ansi ZB8,5-IRTI as BEING IMMEDIATELY DANGEROUS TO LIFE, for FIREFIGHTING, THE ONLY DEVICE PROVIDING ADEQUATE PROTECTION IS THE POSITIVE PHESSUE SELF-COnTAI NED BREATHING APPARATUS, DU-JG MmUIUOAUQU protection factors arf a measure of the ovfrall effectiveness of a RESPIRATOR. FILTERING EFFICIENCY IS A PART OF THE PROTECTION FACTOR BFCOMES A SIGNIFICANT CONSIDERATION FOR LESS EFFICIENT AIR PURIFYING RFSPIRaTURS, ANO THE PROTECTION FACTORS USED IN THE PREPARATION OF THE STANOAROS ARE BASEO ON UUANTITATIVE FIT TESTS PERFORMED AT LOS ALAMOS ANO ELSEWHERE, AND In SOME INSTANCES ON PROFESSIONAL JUDGMENT, IN APPENDIX I# THE PROTECTION FACTORS FOR EACH CLASS OF RESPIRATORS LISTED In THE CHECKLISTS ARE SMOwN, THE ENTRIES IN FACH LIST ARE FOR AN ENTIRE CLASS OF RFSPIRATORS, And ARE ASSIGNED THE PROTECTION FACTOR OF THE LOWEST PERFORMING DEVICE WITHIN EACH CLASS. U--H* HARJLA1TQN3 W-IIH -tfl II 1, THE TYPE SUPPLIED-AIR RESPIRATOR IS ALLOWED IN 30 CFR H FOR use in immediately dangerous to life and health atmospheres, however, AIR SUPPLY REUUIREMFNTS OF 50 L/MIN, IS INSUFFICIENT TO MAINTAIN A POSITIVE PRESSURE IN THE. FACEPIECE UNDER all wuRkIng CONDITIONS, THEREFORE# This DEVICE SHOULD have the same protection FACTOR AS APPLIED TO other AIRPUIFYING and ATMOSPHERE SUPPLYING RESPIRATORS HAVING A NEGATIVE PRESSURE IN THf FACEPIECE (SEE APPENDIX I), 30 CFR IbN 6379 1! *IU WFUUtHE A REVISION TO ELIMINATE APPROVAL OP TYPE A FOR IDLH ATMOSPHERES, 2, AM AMENDMENT TO JO CFR M IS BEING PROCESSED wmIcm WILL DELETE USE OF GAS MASKS FOR ENTRY AND USE IN IDLw ATMUSPMERFS, THEREFORE# IN THIS DECISION LOGIC GAS masks ARE not ALLOwED IN CONCENTRATIONS GREATER THAN THE 10LM OR ENTRY AND ESCAPE FROM UNKNOWN CONCENTRATIONS, 1, IN I HE same AHFN0"tNT DESCRIBED AMOVE, HAAIMUN use CONCENTRATIONS (MUC1 FOR GAS MASKS are BEInG DELETFD, THIS OECISION LOGIC IS CONSISTENT with THIS amEmOmF.nT, H0wvER# CANISTERS APPROVED PRIOR TO THIS amendment will HAVE The muc SPECIFIED ON Th LABEL which will BE INCONSISTENT WITH The SUBSTANCE STANDARDS FOR MOST SUBSTANCES, , JO CFR Ii DOES NOT CONTAIN PROTECTION FACTOR REuUIREmnTS, PROTECTION FACTORS ARE USED IN THE DECISION LOGIC, AN AMENDMENT TO CFR II IS PLANNED TtT INCLUDF PROTFCTION FACTOR REQUIREMENTS FOR OFM RESPIRATORS, FUTURE AMENDMENTS ARE CONTEMPLATED FOR OTHER TYPES OF RESPIRATORS, JO 5, CFR tl DUES NOT PERMIT THE USF AN ESCAPE GAS MASK AGAINST ACID GASES 0 ORGANIC VAPORS wjTM POOR WARNING PROPERTIES, A CHANGE TO 30 CFR II IS NECESSARY TO PERMIT the USE OF AN ESCAPE GAS MASK AGAINST SUBSTANCES WITH POUR waRNInG PROPERTIES, 13U.U ESCAPE WHERE ESCAPE RESPIRATORS ARE PROVIDED THEY SHALL BF StLF.CTFD FROM THE ESCAPE CATEGORY In table 2, THE EMPLOYER Shall PROVIDE AND ENSURE EMPLOYEES CARRY AN ESCAR RESPIRATOR WHERE EXPOSURE may OCCUR TO FXTREmFLV TOXIC SUBSTANCES (An EXTREMELY TUXIC SUBSTANCE IS DEFINED AS A GAS OR VAPOR HAVING A RAT EXPOSURE MORTALITY IC50 OF LESS THAN 10 PPM, THE FOLLOWING STATEMENT IS ADDED TO THf INTRODUCTION TO THE RESPIRATOR TABLE FOR THESE SUBSTANCESi EMPLOYERS SHALL PROVIDE EACH EMPLOYEE WORKING In AREAS WHERE NAME** HAY BE RELEASED Into The WORKPLACE AIR WITH AN APPROVED ESCAPE RESPIRATOR *3 SPECIFIED IN TABLE 2, THE EMPLOYER SHALL ENSURE THAT EACH EMPLOYEE CARRY THE ESCAPE RESPIRATOR IN THE AREA WHERE **NAME** may be RELEASED INTO THt WORKPLACE, IV, J, "ENTRY INTO TANKS OR CLOSED vESSCLSl OR , , , ITEM (D)(a)(IV) IS A VARIABLE PROVISION In THE INTRODUCTORY STATEMENTS TO the respirator tables which lists the specific operations where a respirator IS CONSIDERED TO BE AN ACCEPTABLE MEANS OF CONTROL, EXAMPLES OF WHERE THIS MAY OCCUR ARE FUR OPERATIONS WHICH REQUIRE OCCASSIONAL ENTRY INTO TANKS OR OTHER CLOSED VESSELS, APPENDIX I A, PROTECTION FACTORS FOR PARTICULATE FILTER RESPIRATORS PROTECTION FACTOR (MINIMAL) 5X PERMISSIBLE RESPIRATORY PROTECTION ANY DUST ANO MIST RESPIRATOR (50 CFR 11,130) ANY DUST AND MIST respirator# EXCEPT SINGLE USE (SO CFR 11,130). I tJN OiSU 143 l AX JO* 10X 50* 1000* ANY OUST AND mist RESPIRATOR, EXCEPT SINGLE-USE OR CHARTER-MASK RESPIRATOR (30 CFR 11,130), any FUME RESPIRATOR OR HIGH EFFICIENCY PARTICULATE FILTER RESPIRATOR (30 CFR 11,130), any HIGH EFFIC1FNTY PARTICUALTE FILTER RESPIRATOR (30 CFR 11,130) A HIGH EFFICIENCY PARTICULATE FILTER RESPIRATOR NITM a FULL FACEPIECE (30 CFR 11,130), A POWERED AIR-PURIFYING RESPIRATOR WITH A HIGH EFFICIENCY PARTICULATE FILTER (30 CFR 11,130), 8, PROTECTION FACTORS for CHEMICAL CARTRIDGES and GAS masks PROTECTION FACTOR (MINIMAL) 10* 50* 50 X 50* PERMISSIBLE RESPIRATORY PROTECTION ANY CHEMICAL CARTRIDGE RESPIRATOR WITH AN ** NAME * CARTRIOGE(S) (30 CFR 11,150) A CHEMICAL CARTRIDGE RESPIRATOR WITH FULL FACEPIECE AND ** name CARTRIDGE(3) (30 CFR 11,150) A GAS MASK WITH A CHIN-STYLE * NAME * CANISTER (30 CFR 11.90(A)) A GAS MASK WITH A front OR BACK-MOUNTED ** NAME ** CANISTER (30 CFR 11,90 (A)) 1000X A POWERED AIR-PURIFYING CHEMICAL CARTRIDGE RESPIRATOR WITH A ** NAME ** CARTRIDGE (UNLISTED DEVICE), ESCAPE ANY GAS mask PROVIDING PROTECTION AGAINST * NAME * VAPORS (30 CFR 11,901, NOTEl THE APPROVAL ** NAME ** MAY CONSIST OP ACID GASES OR ORGANIC vapors as a class or specific acid gases, ammonia, or organic VAPORS, IT MAY ALSO CONSIST OF COMBINATIONS OF ACID GASES, ORGANIC VAPORS, AND OTHER GASES AND VAPORS. C, PROTECTION FACTORS FOR COMBINATION CHEMICAL CARTRIDGES AND PARTICULATE filters and gas masks and particulate filters PROTECTION factors (MINIMAL) 10* 50* 50* 50* permissible respiratory protection ANY CHEMICAL CARTRIDGE RESPIRATOR WITH * NAME ** GARTRJOGE(S) and * NAME ** FILTER(S) (30 CFR 11,150 AND 11,130) A CHEMICAL CARTRIDGE RESPIRATOR with A FUlL FACEPIECE, ** NAME ** CARTRIOGE(S), AND ** TYPE ** FILTER(S) (30 CFR 11,150 AND 11,130) A GAS mask WITH A CHIN.STYLE ** NAME ** CANISTER AND ** TYPE **m FILTER (SO CFR 11.00(A) AND 11,1301 A GAS MASK WITH A FRONT OR BACK MOUNTED ** NAME * CANISTER ANO ** TYPE ** FILTER (30 CFR 11,90(A) AND 11,130), 144 TEN 6381 9 1000X A PO-ERED AIM'PURIFYING CHEMICAL CARTRIDGE RESPIRATOR WITH A A* NAME CARTRIDGE AND HIGH EFFICIENCY PARTICULATE FILTER, ESCAPE ANY GAS MASK PROVIDING PROTECTION AGAINST * NAME ** ANO PARTICULATES (30 CFR 11,90 AND 11,130) ** NAME a# REFERS TD ANY ACID GAS, AKALlNE GAS, ORGANIC VAPOR, OR OTHER SPECIFIC GAS OR VAPOR, aa TYPE ** REFERS TO DUST AND HIST, FUME, OR RICH EFFICIENCY PARTICULATE, d, protection factors for supplied-air respirators PROTECTION FACTOR (MINIMAL) 1 OK SOx 1000X 2000X PERMISSIBLE WESPIRATORY PROTECTION ANY SUPPLIED AIR-RESPIRATOR (30 CFR 11.110(A)) any supplied-air respirator ith a full FACEPIECE, HELMET, OR HOOD, (30 CFR 11.110(A)) aa TYPE C SuPPLIED-AlR RESPIRATOR OPERATED IN PRESSURE-DEMAND OR OTHER POSITIVE PRESSURE OR CONTINUOUS FLO" MODE (30 CFR 11.110(A)) A TYPE C SUPPLIED-AIR RESPIRATOR WITH A FULL FACEPIECE UPERATEO IN PRESSURE-DEMAND OR OTHER positive pressure mode or with a full facepiece, HOOD,'or HELMET OPERATED In CONTINUOUS FLOW moo; (30 CFR 11,110(A)) *THIS CATEGORY IS NOT FULLY COVERED BY PRECEDING CATEGORY, 9 C, PROTECTION FACTORS FOR SELF-CONTAINEO BREATHING apparatus PROTECTION FACTOR (MINIMAL) ]OX SOX 10,000+X OR FIRE FIGHTING 10,000+X ESCAPE PERMISSIBLE RESPIRATORY PROTECTION ANY SELF-CONTAINED BREATHING APPARATUS (30 CFR 11.70(A)) any SELF-COnTAInfo BREATHING APPARATUS WITH A FULL FACFPIECE (30 CFR 11.70(A)) SELF-CONTAINED BREATHING APPARATUS WITH A FULL FACEPIECE OPFRATEO IN PRESSURE-DEMAND OR OTHER PL'S ITIVF PRESSURE mode (30 CFR 11.70(A)) A COMBINATION RESPIRATOR WHICH INCLUDES A TYPE C SUPPLIED-AIR RESPIRATOR -iTH A FULL FACEP1ECF OPERATED IN PRESSURE-DEMAND OR OTHER POSITIVE PRESSURE OR CONTINUOUS FLOW MOOE AND An AUXILIARY SELF-CONTAINED BREATHING APPARATUS OPERATED IN PRESSURE-DEMAND OR POSITIVE PRESSURE MODE (30 CFR 11.70(B)) ANY ESCAPE SELF-CONTAINED BREATmJnG APPARATUS (30 CFR 11.70(A)) TEN 6382 145 THE FOLLOWING ARE the prjhary reference SOURCES USED IN THIS OECISION LOGIC. L, CHEMICAL Safety data SHEETS, MANUFACTURING CHEMISTS ASSOCIATION, MASH,, D,C, 2, Sax, N.I.l DANGEROUS RROPERTIES OF INDUSTRIAL MATERIALS, third EDITION, van NUSTRAND REINHOLO COMPANY, NEW YORK, 1466, 5, HYGIENIC GUIDE SERIES, AMERICAN INDUSTRIAL HYDlENE ASSOCIATION, DETROIT, MICHIGAN, a, Chemical Company guIOESi A) ALLIED CHEMICAL H) COMMA RICAL SOLVENTS CO, C) DOM CHEMICAL l>) EASTMAN KUOAK E) EXON Fr.)) EMC MONSANTO H) ULIN Chemicals I) ROHM K HAAS J) SHELL K) UNION CARBIDE COMPANY 5, American national standard acceptable concentraions, American national STANDARDS INSTITUTE, Inc,, NEW YORK, 6, browning, E.i TOXICITY ANO METAHOLISM OF INDUSTRIAL SOLVENTS, ELSFVIEK PUBLISHING company, NEW YORK, 1965, BROWNING, E.I TOXICITY OF INDUSTRIAL METALS, BUTTERWORThS, LONDON, 1461, 7, documentation of the threshold limit values for substances in WORKROOM air. Third EDITION, AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS, CINCINNATI, 1971, 6, GLEASON, M,n,, GOSSELIN, R.F,, HODGE, H,C, AND SMITH, R,P,I CLINICAL TOXICOLOGY OF COMMERCIAL PRODUCTS, THIRD EDITION, THE WILLIAMS A MALKINS CO,, BALTIMORE, 1969, 4, THIEnES, C,m, AND HALEV, T,J,i CLINICAL TOXICOLOGY, FIFTH EDITION, LEA And FEBIGfR, 1972, 10, 5PECTOR, M,S, (VOL I,II), NEGHfcRBQN, m,0, CVOL III), GREBE, R.H, (VOL IV), AND DITTMER, 0,3, (VOL V) (EDITORS)! HANOBOOK OF TOXICOLOGY, SAUNDERS, PHILADELPHIA, 1956-1959, 11, paget, g,e, (editor)t methods in toxicology, bLackmeu SCIENTIFIC PUBLICATIONS, OXFORD, 1970, 12, STOLMAN, a, (EDI TOR)I PROGRESS IN CHEMICAL TOXICOLOGY, VOL 2 AND VOL 0, ACADEMIC PRESS, NEW YORK, 1965 AND 1969, IS, PATTy, F.A, (EOITuR)i INDUSTRIAL HYGIENE AND TOXICOLOGY, VOL 2, SECOND REVISED EDITION, INTFRSCIENCE PUBLISHERS, NEW YORK, I96S, 10, HUNTER, 0,1 THE DISEASES OE OCCUPATIONS, LITTLE, BROWN AND COMPANY, BOSTON, 1969, 15, 3TAUOEN, A, (EXECUTIVE EOITOR)! KIRK-OTHMER ENCYCLOPEDIA OE CHEMICAL TECHNOLOGY. 2nD EDITION. INTERSCIENCE PUBLISHERS, NEW YORK, 1R72, 16, GLICK D, (EDITOR)| METHODS OE BIOCHEMICAL ANALYSIS, INTERSCIENCE PUBLISHERS, NEW YORK, 1450-1969, 17, ALTMAN, P,L, AND DITTMER, 0,8, (EOITORS)l BIOLOGY DAT* BOOK, FEDERATION OF AMERICAN SOCIETIES FOR EXPERIMENTAL BIOLOGY, I960, 146 1'bN 0383 18, DEICHMANN, w,B, AND GERaROF, M,N,i TOXICOLOGY OF DRUGS AND CHEMICALS, ACADEMIC PRESS, wfh YORK, 1969, 18, STECHfR, P.G, (EOITOR)t THE MERCK INDEX, EIGHTH EDITION, MERCK 8 CO,, INC, new JERSEY, 196B. 20, INTERNATIONAL LABOUR OFFICE! ENCYCLOPAEDIA OF OCCUPATIONAL HEALTH AND SAFETY, MCCRAH-HILL BOOK company, nek YORK, 1871, 21, hygienic Information guides, commonwealth of Pennsylvania, OEAPrTmEnt of Environmental RESOURCES. BUREAU OF OCCUPATIONAL HEALTH, 22, CHRISTENSEN, M.F, AND LUGINflYHL, T.L.I (tDITORS)l NlOSM TOXIC SUBSTANCE LIST, 1974 EDITION, Mw PUBLICATION NO, 74-134, 1974, 23, SURVFY OF COMPOUNns -HIcH have BEEN TESTED FOR CARCINOGENIC ACTIVITY, U,3, PUBLIC health SERVICE PUBLICATION no, 149, ORIGINAL, SUPPLEMENTS 1 AnD 2, 1961-1967, 196S-69, ANO 1970-71, 20, SPENCER. E.Y.i GUIDE TO TH CHEMICALS USED IN C0P PROTECTION, StXTH EDITION (PUBLICATION 109]}, RESEARCH BRANCH AGRICULTURE CANADA, 1973, 25. NATIONAL SAFETY COUNCIL INDUSTRIAL DATA SHEETS, NATIONAL SAFETY COUNCIL. CHICAGO, ILLINOIS. 26. HASKJN, a,o, (EDITOR)! HANDLING GUIDE FOR POTENTIALLY HAZARDOUS COMMODITIES, RAIL-AY SYSTEMS and MANAGEMENT ASSOCIATION, CHICAGO, ILLINOIS, 1972, 27. handbook.of organic industrial solvents, technical guide no, 6, ATH EDITION, AMERICAN MUTUAL INSURANCE ALLIANCE, CHICAGO, ILLINOIS, 1972, 2*1 COMMITTEE ON HAZARDOUS MATERIALS, DIVISION OF CHEMISTRY S CHEMICAL TECHNOLOGY NATIONAL RESEARCH COUNCIL. NATIONAL ACADEMY OF SCIENCE! FIRE HAZARD CLASSIFICATION OF CHEMICAL VAPORS RELATIVE TO explusion-prqof electrical EQUIPMENT, REPORT III, A supplementary REPORT PREPARED BY THE ELECTRICAL HAZARDS PANEL, WASHINGTON, D.C., MAY 1BT3, 29, NATIONAL FIRE CODES. VOLUME 1 FLAMMABLE LIQUIDS, NFPA 325, NATIONAL FIRE PROTECTION ASSOCIATION, BOSTON. 1969, 10, NATIONAL FIRE CODES. VOLUME 7 ALARM and SPECIAL EXTINGUISHING SYSTEMS, NFPA 69, NATIONAL FIRE PROTECTION ASSOCIATION, BOSTON, 1973. 31, NATIONAL FIRE CODES, MANUAL OF HAZARDOUS CHEMICAL REACTIONS, NFPA 891M. RATIONAL FIRE PRQTFCTION ASSOCIATION, BOSTON, 1971, 32, NATIONAL FIRE CODES, VOLUME 3 COMBUSTIBLE SOLIDS, OUSTS AND EXPLOSIVES, NFPA 99, NATIONAL FIRE, PROTECTION ASSOCIATION, BOSTON, t*73. 33, BaHmE, CHARLES w,l NFPA FIRE OFFICER'S GUIDE TO EMERGENCY ACTION. APPENDIX A, NATIONAL FIRE PROTECTION ASSOCIATION, BOSTON, 197*. 36, factory mutual engineering corporation! handbook of Industrial LOSS PREVENTION, SECUNQ edition, MCGRAW-HILL book COMPANY, new YORK, 1967, 35, ARMISTEAD, G,, JR,I SAFETY IN PETROLEUM REFINING ANO RELATED INDUSTRIES (APPENDIX A), SECOND EDITION, JOHN C. SImmONDS AND CO,, INC,, NEw YORK, 1959, 36, DOOLITTLE, a.K.i LAQUER SOLVENTS IN CUMMERIC*L USE, INDUSTRIAL ANO ENGINEERING CHEMISTRY, VOL 271 1169-1179, 1935. 37, GRANT, w,M,| TOXICOLOGY OF The EYE, SECOND EDITION, CHARLES C, THOMAS PUBLISHER, ILLINOIS, 1974, mis 0.584 147 30, API TOXICOLOGICAL REVIEWS, AMERICAN PETROLEUM INSTITUTE, Nfw YORK, an, GLEASON, M,n,, GOSSELIN, R, E,, MOOGE, H.C., AND SMITH, ,P,| bulletin of supplementary material for clinical toxicology of COMMERCIAL PRODUCTS. UNIVERSITY Of ROCHESTER, 1969-1975, at, hay, Jt, ODOR ThrfshOLDS of SOLVENTS FOR ASSESSMENT OF SOLVENT ODORS In the AJr, STAUB, VOL 26, S.38 (SEPT, 1966) (ENGLISH TRANS.) a2, (SEE NELSON) a3, * SUHHER, R,t ODORS POLLUTION OF AJR, CC PRESS, CLEVELAND, 1971, 148 TEN 6385 APPENDIX G STANDARD OPERATING PROCEDURES Selection of the proper type of respirator is vital, but it is only part of the complete respirator program. Unless a standard operating procedure is set up, a correctly chosen respirator may be used in correctly. The OSHA regulations 1910.134b require written standard operating procedures whenever respirators are used. Examples are given below, posure and that it is important that he use the respirators provided. It is further explained that it is impossible to install a ventilation system to take care of the dust problem in this area. Respirator Sanitation Program STANDARD OPERATING PROCEDURES FOR USE OF RESPIRATORS IN THE MULLER AREA The first respirator selection example in Chapter Six concerned a rauller operator in a foundry. If we assume that this is a small foundry with only one operator, we can write a simple procedure as follows. As the respirators are discarded after each day's, use, there is no need for a sanitation program. Respirator Use Surveillance It is the foreman's responsibility to see that safety devices provided are used. He checks the muller operator's use of the respirator daily. Respirator Selection Work Area Surveillance On the basis of the 5-mg/m3 dust concentration and a permissible exposure limit of 1.5 mg/cm of silica dust, we have chosen the brand X disposable respirator, approved for use in silica dust, to be worn whenever the muller is operated. Properly used, this respirator provides a protection factor of 5. User Instructions in Training If operating conditions change, dust concentration in the muller area will be remeasured to ensure that the respiratory protection provided is still adequate. STANDARD OPERATING PROCEDURES FOR USE OF SELF-CONTAINED BREATHING APPARATUS DURING DEGREASER PIT MAINTENANCE The muller operator who wears this respirator is trained in its use when hired and yearly thereafter. During training, he is taught to wear the respirator and a fit test using talc dust is performed to see whether the respirator leaks. If it does leak, another brand of disposable respirator is obtained. After the fit test, the employee continues to wear the respirator during the rest of the instruction and training class. He is told that he may have a new respirator whenever he wants and that he must use a new one whenever breathing becomes difficult and at the start of each shift. He is also told that silica dust may be harmful to health some years after ex In the fourth example in Chapter Six, maintenance personnel occasionally had to enter a degreaser pit while it was cool to clean it and per form necessary maintenance. The written operating procedure might be as follows. Respirator Selection Extremely high trichlor concentrations may be encountered during degreaser cleaning. The pit is to be ventilated, but use of pressure demand suppliedair respirators with escape packs is required. TEN 6386 149 User Instruction and Training Maintenance men required to wear this equip ment are trained in its use within 30 days of their employment. The training consists of wearing the equipment in fresh air and being taught how to regulate air flow and how to react in emergencies and if the main air supply fails. They are shown the alarm bell in the degreaser pit which rings if the air compressor fails. They are told that at that time they have 10 minutes air supply from their escape packs. The equipment is used in a training exercise four times a year and is cleaned approximately twice a year. The exercise consists of entering the pit after it has been ventilated and inspecting the equipment in the bottom' of it. Escape bottles of compressed air that have been opened are replaced through an arrangement with the distributor. Cleaning, Maintenance, and Storage After use, the respirators are cleaned by the maintenance staff using the manufacturer's sanitiz ing solutions. They are dried and stored in special cases in the maintenance department. Respirator Air Supply Air for normal use of these masks is supplied by an oilless portable compressor placed at the edge of the pit. Respirator Use Surveillance The Safety Director is responsible for seeing that training is carried out as specified and he must oversee the training. Emergency Respirator Inspection The respirators are inspected monthly for deterioration and to see that the escape bottles are fully charged. This is the Safety Director's respon sibility. ISO * U.S. GOVERNMENT PRINTING OFFICE: 17S--67-061U19 i'KN 6387 DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE PUBLIC HEALTH SERVICE CENTER FOR DISEASE CONTROL. IONAL INSTITUTE FOR OCCUPATIONAL SAFETY ANO HEALTH ROBERT A TAFT LABORATORIES 4 67 6 COLUMBIA PARKWAY. CINCINNATI OHIO 45236 OFFICIAL BUSINESS PENALTY FOR PRIVATE USE *300 THIRD-CLASS MAIL U S. DEPARTMENT OF H.E.W NEW 3*6 HiN 6388 DHEW (NIOSH) Publication No. 76-189 TEN 6389 APPENDIX N NIOSH CERTIFIED EQUIPMENT LIST This list is published annually by NIOSH. A limited number of updated lists are made available free-of-charge to the Tenneco Chemicals, Inc. Industrial Hygiene Department. When updated lists are published, recipients of the manual will receive either a revised copy of the "list" or instructions on how to obtain a copy free-of-charge. TEN 6390 APPENDIX N REMOVAL OF NIOSH CERTIFIED EQUIPMENT LIST Due to the large content of this manual, the NIOSH Certified Equipment List may be removed to make the manual more manageable, prevent tearing of pages and provide room for insertion of ANSI Z88.2 (Appendix L) . An up-to-date copy of the NIOSH Certified Equipment List should be kept with the manual for reference purposes. 1'bN 6391