Document zd09knbabbV6dM3Q7veaEZbqB

> LU QtL )3) :? FROTECTIVE EQUIPMENT SAFETY ENGINEERING STANDARD 'RESPIRATORY PROTECTIVE __ EdJJIPMgNT - 'wee Tml A4C RCYilCO I"T(4iNrrOiAiuROco JAN 1994 DEC 1979 DEC 1371 S2H Pag* 1 of 9 include* requirement* of th* Occupational Saiaty and Health Act o?.l970 (OSHA) as publunad in th# factral l-irc- OSHA wlormstion i printed in red. __ . 1. SCOPE : this standard provide* information for the selection, ujj.. _ani_ care of^ respiratory protective equipment i fr*piratory. The term "reaptritor' in th in atandird i* ujed ineluajvelv and applie* to amotphere-*upplying and i'r-purifvtn| device* that provide breathable tir to the w.-afer within the limit* of the equipment, whatever the cjiirfiTof tir. Thia atandird doe* not apply for exposure to airticrnc radioactive contamination for which special eoi* deration may be neceiaary. ijjL - 2. GENERAL . lit- . -T _ ?|i- li--niratnr* aimulil not be u*ed a* a auiwtitute for Ifl'iv' cvliau-t ventilation or other rnpnrcring control .slffftn.l.. ' "' fir- ' v - >-*,* : J^ ^Rctpiratort thal! be worn at all timet where the i.jtophcre may be harmful to employee* due to unuiual condition*, and where work it neeetaary in contaminated nf'Vy gcn-dcficient. confined treat. __ jj"" 2,2.1 When the air it deficient in oxygen, the lymp- tnjj1_'ranfc from inereaaed volume of breathing and ac celeration of pulac rat* to uneonaeiouanaa* and death, depending upon oxygen content and the degree of a per* on'* activity. Unconaetouanoas la Immadlata whan mun braathaa pur* nitrogen and death may follow In a le;gr .minute*. !~2J:.2 An oxygen deficiency may indicate a haiard i_rr than, inert gaa: e.g., flammability (aee 4.4), akin injfTcity. or absorption through the akin. particularly hydrogen cyanide. Threahold limit ytluea (TLV'a) of air rcuiaminant* are pven in S2T. Portable oxygen and tuiic-ga* detectora are eovared in S3T. t.'--.-----Z.'.l 1`urr oxygen ahall not be uaed in atrooaphereimplying respiratora. J. APPROVED RESPIRATORS 3.` Where achaduloa for a particular type of equipment have been ratablirfied, only equipment fitted and ap proved hy the Uumau of Mines and the National Institute fm Oorupational Safety and Health ahall be uaed. 3.1.1 Rrapiratora purchased on or bafera Saptambar 30, 1974 and meeting the following Bureau of Mine* Schedule* are approved for u*e until the following dates: Typo of - Respirator Bureau of Mina* Approval Schedule Terminal Uat Oats Self enntatord Caa m**k* Supplied air Diet. fume, met Ql-micnJ cirirKkt_ 13 thru I3E 14F 19ft 21 ft an March iT 1979* March 31. 1980 Match 31, 1976 _ March 1976 * Pena in cVcanU'iwf Sr-.ihtn* apfafvim ay, he uficferf-H In n.*t th* fwfitrwwnaa of 30 CTR. I'an 11 aavi R.f., 1. mBwri,. lur-r. Temurwl In- Ha,-, ar- h-int waaaHri.H h, OSH Ch-tl iurr-nt autua' i'rtil D-porlm-nal OSH* Owuiiiulnra. " T-rminal mt dal- hat a--n vuharsvn anH md-finu-.__ ` 3.12 Reapiratora purehaaad aftor Saptambar 30, 1974 ahall be manufactured per quality control plan approvrd under Title 30. Code of Federal Regulation*. Part 11 and ihall njjet the requirement* of the Bureau of Minei Schedule* *hown in 3.1.1. Such equipment will be*r in approval label bearing the letters "TC" iiwtead of "BM". 3.12.1 Exception, approved retpiratnr* purehaaad after Saptambar 30, 1974 and on or bafor* June 30, 197S may be marked "BM* if NIOSH ha. ap. proved the vendor's quality control plan under which the respirator was manufactured. 3.1.3 Respirator* purehaaad attar Jun# 30, 1973 shall meet the requirement* of Chapter 1, Title 30. Code of Federal Regulations. Part 11 - Reapiratory Protective Device*; Tests for Permissibility. i. _ * * - - *., r* 3X A liat of the respirators and their manufacturer*, cer tified by th* National Institute for Occupational Safety and Health (NIOSH) per JS.1.3. ma be obtained on request for HEW Publication No. (NIMH) 7S-- 119 piua euramulative supplement* from: NIOSH Testing and Certification Laboratory 944 Chestnut Ridge Rd Morgantowru WV 26503 Pv.ioca grinltd m rad* ar* Item OSHA regulations. Section 1*t0 134 DUP"* 0960554 I'h-r. ii--------- V**4ort gnrf mrehan4it d*ignti*nt r gtvn describe meferiels nd mey rtbf melude ell eecepteble product. $ubtitwiett by suppliers b only n Mpftvd f th# leJ utHwnty th* u rhtt DU 040764 Btafeai a-- I *' ~ S2H RESPIRATORY PROTECTIVE EQUIPMENT Pig* 2_______________________ ___ _________ __ JANUARY 1|S4 Thlg Piflt W> Spt 197| + iso Mnsil 0flier nf Technical I'uhliratinn* l'ni Office Building C.inriKfiKVi. Oil 4&202 ! **. Ilurrati of Mine. Health ami Safety Kcearch anil Trating Center IflhO Knrlir* Avr l,itt.|H,ri:li. P\ 1521.1 3.3 Vl Iiw* prcarnt time, there are im approval arhedulra fur nir.*n|i|iliri| aintx. 3.4 \ li*i of tin* arvrral type* of rrapiritnry protective ctuiiiment. method nf operation. 11*0. limitation*. anil remark* 1* given in Tuhtr !. For additional information m tin* regard. reference ilioulil In* mailr to: 1**01 tin** for Hr.pifatnry Protection. ANSI Z88.2. tmnrnnn National Standaral* Inatitutr. Inc. 14.10 llro.niiva*. New York. NY 10018 llrapirctnr; Protective Kifuipinent. Uata Sheet '1-441 National Safety Council. 125 North Miehittan tirinir. Chicago. II. 60611 Ivcmnra extremely Iml intiicatr* that rnerentritinn* above tin* eaniatrr limit have Imen encountered.) b. If nauaea. diuineai or *tgn of rlitre develop. C. If the raniter ha* a window miiiratnr which liow the apreified color change. d. If any leakage i iletrcted liy *mrll. tatr. eye, no*e or throat irritation. ' If high breathing teaiatance dptrlnpa. 4.4 Air purifying rrapirator*. ahodftT not he uaeil in atmophere immeiliately dangrrpii* to life and health or when the contaminant haa poor warning propertir*. p*. rept for eacape. / 4.5 Uaer ahnulil telerl ranutera and cartridge* apeci. fically approved for the toxic ga* and ronrentration to tie enrnuntereil. Caniater maaka that hear the laliel "All* Sendee." "All-Hurpmr," or "liniveraal" ahnulil not lie1 iierl for a pnrifir gaa or vapor if a raniater it availahle for that apeeinc gaa or vapor. / lb*piratory Protective Device* Manual published by \meruan f ri a I Hygiene Annotation anti Viiienran Conference of Governmental InduHrtui llvgien*!* (ropie* art* availahle from Ilraun ami Hfoutfii'h) Inc, Hot 120:t. Ann Arlior. Ml 48106) 4. USCS AND LIMITATIONS / 4.1 l fr. of repiratory protective equipment nhall have mniii.ii jpprmjl. / 4.2 Th* air-purifying rssplrators; esnlstsr gaa masks, ehtmieal cartribga raspiralors. and mechani cal filttr raspirators (Tabls 1C) shall not bt ussd for rtscua work, or lor amargancy work ol any nature. Tin* * Ihtnijm* thr*r respirator* tin not aupply oxygen ami tli*r'fi if* Hi nut Naattwt |***ihlr oxygen ileficien* * H||>fr reann* for thi* ri'ijuiremrnt air that; a. t*a tmi*k* art* iiurftdfd for ttr with no more iluin pcrr**n bv volume of nxtk logic gae*. b. cartridge rrpirator arr* intemied for tiw m icnmrantlv Jnwrr toxic gas mnreniralmn* than cantMer Bi* ma%k*. Limit* vary fmm 0.05 percent m.iMimmi to 0.1 ^percent maximum. 4.3 Tim following wanting ign require immediate r*`ftirn to fnwlt atr: / I. I rvoritfortahh* bent in the tnhuhoj ir. (A properly npTannc ranii#f will limmif warm n r\. in rrrtain or njHir*. hut ii rsnitrr nhit-ft 4.8 Although `ir*f*onUirv^l brrathing apporatu* nr rnm* Innathm airdim* and r|fmmatnnd hrrathine apparatu* havr no concentration limit in regard to toxicity, many toxic ga*e ami vapor* are flatnmahle and thr uwr cntiitl )w* ctpoard to a potential Tire or explnaion. The 2*perecnt conrentration limit* approved for loxir ga removal with ranitcr*tvpc mak i* within the flammable range fnr nmr gate*. Work in atmoaphere* in or near the flam mable range i* prohibited. When the po*ihility of flam mable atmmphere* exist*. check ahould i>e made with an esphwimetec and pemti**alde ronrentration* con firmed prior to entry. Stamiard K6J provide* information and mtrortmn for ur nf portable flammable vaftor and pt* detector*. 4.7 Respiratory protection t* re<|uired for cancer ufert agent*. Kcfrr to OSHA regulation* for pecific require, ment*. Sectum 1910.1000 nrric* ami to S2T. 4.8 An tinronlaininated *uppty of air mut he a*ured when u*tng a hoe mask with blower. S. SELCCTfON 5.1 In *elctifig a repirator. the following fartor* (5.1 5.1.6.!) and Table* 1 and 2 should be i'oo*ilered. Kncineermg |)rpt Report. Aeee**ion No. 15167 MRr*pir tttor Selection,'* ul*o will provide guidance. 6. Nature of the haxard b. Severity of the haxard e. Type of contaminant VtioxiAt pomas ie rea wt oem OSHA rtgulsioei. Sactior ttiQiOQO tanas CJNnDENTIAL DUP 0960555 i DU 040765 IU eo cn o O > LU QC JANUARY 1164 This Paga Rav Da.c 1>TI RESPIRATORY PROTECTIVE EQUIPMENT S 2H Pag* 3 d. Concentration of the conuminont - o. Period protection it required I. Location of the contaminated area with reapect lo * touree of reapirable air tf. Expected activity of the wearer h. Operating charaeteriatiet and limitationa of the i.vailable reapiratora I. Safety regulationa of atate or local governmenta ^3.1.1 Self-contained breathing apparatua rated for it leait 30-minute service time ihould be uaed for entry into in irreapirable atmoephere. 5.1.2 Self-contained breathing apparatua with leaa tnan a 30-minute air aupply ahall be need only for emergency egreaa and net for reacue work or reentry. 5.1.3 Operating time for eelf-contained apparatua ia tueri on moderate work rate*. Operating time it reduced fcv inereaaed reapiration required by heavy exertion. 5.1.4 Oniy *alf<ontaln*d breathing apparatua, cr combination alr-ltne respirator and aaH-contalnad breathing apparatua, shall be used In axygsivdeflclant atmospheres or whore the contaminant Is, or might bo, Immediately dangerous to Ilfs. The air in the selfcintained unit of the oombination air-line respirator and i-lf-contained breathing apparatua shall be uaed only for rereia'In" event the hose-line supply of air ia interrupted. The volume of this exit aupply may vary for different ap- plications, but shall b ample to allow ths worker aif- ficient air to oacape from the contaminated area. In any ciae. this aupply ahall not be leaa than 3 minutes. Con sideration ihould be given to aaing only positive pressure unit*. 5.1.5 Eacape masks are uaed only while the wearer 1 raves a contaminated area. They are approved under Subpart 1. 30 CFR Part 11 and have a half maak fiicepieee, or a mouthpiece, here eye irritation ia a con sideration. a full faeepieee should ba used. For escape or emergency purposes from unknown concentrations of ex* tiemely hazardous atmospheres (any gas or vapor having a rated lethal concentration LC SO of leaa than 10 ppm), a pressure demand ae&eontaincd breathing apparatua or combination pressure demand supplied air respirator with p-essure demand self-contained breathing apparatua ahall b: uaed 5.1.8 Entry Masks. Use aclf-oontained breathing apparatus with at least a 30-minute air aupply or a com bination supplied sir respirator with self-contained breathing air apparatus. Unit shall be of ihe pressure demand type. The entry masks ihould b* located outside of the potentially affected area in a noneontaminatad area and properly identified and protected. 5.1.7 Fire Fighting. Use self-contained breathing apparatus with at least a 30-minute air supply. Unit shall be the pressure demand type. - 5.1.1 Schedule 13E of the U. S. Bureau of Mines on self-contained breathing apparatus requires a re maining service-life Indicator or warning for compressed breathing air (except for telf-raaeue). Some equipment now on plant* may not have these alanna. These can and should be obtained from equipment suppliers for *]> peratus not to equipped 1-1-11 Whan the device ir e combination selfoontained breathing apparatua and air-line respirator (supplied-air respirator), either a manual or automatic valve(a) shall be provided to change to th* self-contained air supply if th* eir-line supply fails, end to prevent the wearer breathing contaminated air from the outside atmosphere. If a manual valve ia provided it ahall ba easily operable and located in t position which is con venient to the wearer. If an automatic valve is provided a warning alto shall be provided to alert the wearer that he it breathing from the self-contained air supply, (1) when hit normal alr-llne aupply fail*, or (2) when the selfcontained air supply fall* below 95 percent of its hill eontamer pressure. A quick disconnect and check valve shall be provided between th* apparatus and the air-line supply hot* to permit ready escape from th* area, and to prevent lost of breathing air from ths device or inhaling the surrounding atmosphere, respectively. 5. MEATHINQ AM 11 Both purchased and manufactured breathing sir shall mast or exeoad ths requirements of the specification for Grade D breathing air as described in Compressed Gaa Association Commodity Specification G-7.1-1966*. See table below for Grade D analysis summary, and G-7.1 for detail* Including sampling and analytical procaduras. Qm Oj CO CO, Hytbeearfasna (condensed) HjO Odbf roathing Air Analysis 19 paream aia la 23 percent nuxt 20 ppm max 1.000 ppat mas 5 mg/a1 Daw palm law than the lowaal probable temperature to to emaenured BeUrwt Fra* af praneenead adore t See S*T hr 4su so Straw laefe* sertakle strata anaiysm Tim k mcesary lo preraf* frmswap tad pp-f- rf sir (law u l)w audL Far isUti rsfar is *Hm*W af Caipnl Caws* * Avaisas irom Comsratssd Oat Association me. J00-Wf Are. now vtws, ny 1003* r<mons pnniao tn tad ate Item OSHA regulations. Section 1*10 IS* DUP 0960556 DU 040766 S2H Pl} * * ' k-4 i---- - " RESPIRATORY PROTECTIVE EQUIPMENT JANUARY 19M This pc Doc i7> 6.2 \ rr liable aupplier should be chosen. Viit hi* fn ilitie* to determine hi degree of control oer thr op^rtlinn If an air compressor ia uaed. it ahould br nnnluhnntrd. If a lubricated compreaaor ia uaed. it muit haw- a rai-bnn monoxide or high temperature (or bothl ainrm Annual cnmact* ahould be made to aaaure equipini-m ana procedure* have not changed. Ai*o. demand-type air-aupplicd reapiratora and demand, typr self-contained reapiratora operate under negauve prraaure when the wearer inhalea. Since aome inward leakage of contaminant may be poaaibie, theae typea provide much leaa protection. When purchaaing new air* uppliedL aelf*conUined or combination type, preaaure* demand ahould be specified. 8.3 PrefrraKij". certified breathing air ahould be purchard from a reliable aupplier. If a choice haa to be made between ce rtified air from a questionable aupplier and un certified air from a reliable supply, the latter would be the recommended chotee. 8.4 Drtei-mine if the air ia provided by eompreaaion or rrconautution (mixing nitrogen and oxygen) and anaiyxe aa followa: Wtetnod ot Preparation Contpreaion - wpplier aoea no nil cylinder* with any (awi other than air. Ovnprr.widn"'- supplier r.U. edindrr. with |i*n otvr than air Rrcon-btution Anatyelt Recommend Check 10 pereenr of eyiindera from each lot for percent CO and odor Anaiyxe all cylinder! for perctnt O}. Cheek 10 perccru of eyiindera frtxn each lot for percent CO and odor. Analyte all eyiindera for pticont Qj. Chock 10 pamam of cylindan front aeh lot far paroent CO and ador. I.S In nidiuon a complete analyeia ahould be con ducted periodically to aaaure compliance with table in 6.1. 7. PRECAUTIONS 7.1 An eatenant* lint of instruetions in uae and prrcautioni for each type of respirator ia given in ANSI Z88.2. Some-precaution* are given in Table 1 under heaHina* of Limitation* and Remarks. 7.2 Thr manufacturer' instruction* or precautions of thr ANSI nundard ahould be pasted with the respiratory device. 7.3 Alt peraona who may have ooeaaton to uas respiratory devices, or eauas thorn to bo uaed, ahould be properly trslnad In thoir uae. Also, in exaeution of plant disaster plana, proper training in uae of respiratory protective equipment will aid in the performance of smooth ami safe rescue or repair operations. 7A.1 A prtfiure*demand type aelf.eenUined reapir* aior or air*aupplied combination aelf-oontained ahould be uaed in atmoapharaa containing eontarainanta which can nul be detected by atnell or where apeeial precaution! mutt be taken to prevent the wearer from inhaling any trace of contaminant. In this type equipment a imall poaitive preaaure ia maintained inaide the feeepieee at all umea. auch that if a leak ahould develop, there would be no leakage of contaminant into the faeepieee. 7.$ A proper ittl cannot be oatabllahod If the tsmpl* bara ot ayo glasses ntand through the aeallng edge of tulMaea masks. 7.6 Contact lenaea aball not be worn with full*face maaka. See S4H. 7.7 All eyepieeea in full-face maaka approved by the Bureau of Minei will pasa the ball drop teak but aome piaatie eyepieeea may not paaa the needle drop teat (S4H). Current achedulea of the Bureau of Mines, however, require that eytpiacea ahail meet the pertinent require* menu for impact and penetration apocified in the most recant ANSI ZS7.1 Safety Code for Eye Protection. 7.7.1 Full*face maaka have been developed with ayatema for mounting corrective lenaea inside the facepiece. Contact the manufacturers for aaaiataaee. 7.6 Major problems in the uae of full-face masks at low temperatures are poor visibility and freeting of exhala tion valves. Antifog compounds can be uaed to coat the in* side end outside of the eyepiece to prevent its fogging, down to about 32*F. Below 0*F, however, antifog com pound will not prevent severe fogging. Antifog compounds break down and require reapplication periodically. 7.6 A half-mask faeepieee ahould not interfere with the wesrer'a uae of spectacles or goggles. Proper selection of equipment normally will eliminate any problem of proper fit when using a combination of half.maak feeepieee and spectacles or goggita. 7.10 Peraona required to wear respirators must be eleen haven in the area of the respirator seal. 7.4 A align negative preaaure occurs inside the faeepieee of face.rminx'air.purifying respirator* (Table 1C). Care mu>t he taken in obtain an effective seal between the facepiece and faer to prevent inward contaminant leakage. onions emune m rae an inn OSHA nfuiscons. Section tttO.134 7.11 Conventional respirators do not constitute an ah* solute barrier to transmission of speech. The respirator exhalation valve usually provide! e satisfactory pathway for speech transmission over Chart dlclsrtcet in relatively OQiNrfpr j ! A.LDUP 0960S57 + X3 o> CJ o > LU i- DU 040767 wiWHiaMiiMliil.iliH Mi JANUARY HM tss This Rage Hw Ouc 1WI RESPIRATORY PROTECTIVE EQUIPMENT __________________ *2H PQ qulit ana. Speech tnnmiwoq device* are available. iCiutlon: cheek for acceptability of eleetneal cimifi. ration for use is haaardous inu, end N105H approval -hen mounted on respirator). >44 Cylinder* ahall be teated and maintained aa preacribed in the Shipping Container Specification Refuiatioea of the Department of Transportation (*9 CFR. Part 173). <T5 O <3 m + 7 12 Hose* for air supply ibotild be selected to resist rhimiealt to which they may be exposed . CANE 11 Oewafii. a oentraliaed maintenaaee. cleaning. and torsgv station should be used to care for respiratory prt'uvtrvr equipment Procodurae Applicable to All Raaplratora 4.1 Inapoetlon. All respirator* ahail be inspected routinely before end after each use. Those held reedy for rmrrernry use ihali be inspected at least monthly and afti-r each use. 1.2.1.1 Self-contained breathing apparatus shell tv inspected monthly. >44 Nona Maaka. Cheek the blower periodiealiy for proper operation. Cheek bote for wear end tear after each use and dean when nacamary. Keep hoac capped whan not in use to prevent entrance ot (hist or other conTaminanta. ~ 144 Air Una Reepiratera. The facepiece should be terrioed after each use, aa fet all other respirators. The flow control vmhes should be inspsetod after each use and cleaned and repairadL if naeactery. Air-lint hose should be dteckod for wear and tear after eacb ate cod be cleaned when nacscatry. Sac S1H on airwuppiy tystam. 144 MMtgacugrg. Monthly inspection is the moct haportant phace of the maintenance program with this typo of equipment because the equipment it seldom used but mast always be reedy. 44 Cfmtonl Cnftrwgn Ronplratnrt >44 Maintenance. Then it is necessary to replace nm or deteriorated parte, only those made specifically inr the device ahall be used; end the repeir work shall be enfom pliahed by trained personal. For most plants, it is preferable that parti of this type (subassemblies) be replaced as a unit or returnsd to the manufacturer or fac* tory iraifltd personnel for repair. ajj Cloaning tad Dlslntooting. Respiratory pmtectrve equipment, except canislers and cartridges, should bo cioanod and ditmfacted after each ate, tmloat assigned to individnaia, when they shall bo cleaned aa necessary to assurs a saniury and property functioning math. >44 Mtorage. All roepiretory protectiva equip, mem shell be stored in e dean, eool. dry piece, out of direct sunlight, under eonditioae of moderate tarn* pet ansa. They should he located for eacy acceasebility tod the location adequately labeled if Decawary. Reipintors toould ant be stored in mob places as lockers or tool base atom they are in carrying cases or bate*. J tpitai ftnoaduena tor Maintaining, donning, Oiiitotoehne, and during Noopiratora >4.1 tgtocgmnkMd drnaming Apparatua. in demand-type (Table IB), the cylinder pressure shall bo chteked monthly and rocharyed If bekrw rattd pressure (ccrreetod to 70T). Rtchargs after aach use. following manufacturer's instructions. Follow manufactmr's i tractions on tightnoat tost* for talfcaateiaed respirators mi hydrosutie teating of ooeepiesisd air cyiinderv Assure that regulator and low-pressure slarme are functioning. 44.1 In plants with eentraliaed maicteoanoe stations, eartridgm inethnss are discarded after a predetermined period of use. Hggkal Laboratory will establish chemical cartridge breakthrough tunes for pacific tonic atmospheres on request to assist plants in establishing gat period criteria. 1444 Replacement should be incorporated into the msiesemeune sad deeming yisgia. la meet usee, the wearer should not be responsible for scheduling replace, meat cartridges in hi* respirator. However, chemical car* tridget should be changed whan the wearer detm the' odor or irritating effect of the oomammant. >444 Where the eapectod oontaminant has oo odor or irritating effect, chemical cartridge respirators shall not be used. >444 Mouthpiece respirators shall not be used for routine protection, baccate breathing through the mouth may bypwi the odor or irritation warning of so ex pended cartridge. These da not have NIOSH approval. >44J Particular earn ihoold be exercised in the storage of shsmirsl eartridgn keemmr they deteriorate if exposed to oncost moisture and to (astout air oo Cartridges should net be stored ut the area when the workmen gas ikma. >4.7 Mnehanical Wtar Rgcptomra. Mechanic*] filters of the "thiwwteway" type should be discarded when the braething resistance becomes bothersome to the wearer. Some merit antral filter leapt;stors use reeleaw able filters, in which ease tha filters are cleaned when the respirator it being wrvioed. Semens enmsd In rto are (ram OSHA rsgtunioflt. Section itto.134 j'ill'jil'.ii DUP 0960558 DU 040768 63 21 IN O 85 iit s3 h ag sir ! 8| if iafitty RESPIRATORY PROTECTIVE EQUIPMENT issue THIS IVT*D ST4N0M0 *U#**MK KNOmceilNO STANOAJID JAN 1964 OCT I960 DSC 1979 82H Pag* 1 of 9 -ij_(tnard includes requirement* a) tn* Occupational Safety anonaaim Act of 197Q (OSHA) u publtsnad In in* Federal =i*0'itf OSHA infotmation It printed in md. i. scope Thu nandard provide* information for the aeleetion, ues . and care of respiratory protective equipment i respirators). The term "respirator" in thia aundard ia uad inclusively and appliet to stmosphsrs-supplying and air purifying dericea that provide breathable air to the *i irer within the limit* of the equipment, whatever the aourec of air. Thia atandard doea not apply for expoaure to airborne radioactive contamination for which apecial con* aidrration may be neceaaary. 2. GENERAL 2.1 Reapiratora ahould not be used aa a aubatitute for ^equate exhauft ventilation or other engineering control me hods. 2.2 Reapiratora shall be worn at all time* where the atmosphere may be harmful to employs** Nie to unusual condition*, and where work ia necessary in conurnirwted or otygFn-deficient, conflaad arses. 2X1 Then the air ia deficient in oxygen, the symp* torna n|t from increased voliaiw of breathing and ac celeration of puiae rate to unconacioaaness and death, depending upon oxygen coolant and the degree of a per son's activity. UmanMlOUNMM Ig Immediate wtMII man braathaa pura nltragan and daath may toHew in a tow mlitutaa. 2X2 An oxygen deficiency auy indicate a hasard other than inert gaat ag^ flammability (see 4.4), akin toarrity, or sdeception through tk* akin, particularly hydrogen cyanide. Threshold limit value* (TLV's) of air comaminanu anf'givea in SZT. Portable oxygen and toxic-gas datnetan are covered in SST. U Pure *aygen dull out be unsd in open circuit, eeif eoaaaiaed. aaanpbxtogplpiif raapiratare. er in airdaau type iwpnun. 24 A eloeed circuit (rubrtithiug) ejraiam recircsiatee exhi.led air. mabet up oxygen and rxiaovc* undesirable facet such aa carbon dioxide. Pure oxygen maet be used wtth then system*. Sytuaaa approved by the National institute for Occupational Safety and Health (NIOSH) which utilise a high-pressure cylinder for oxygen may b* used. Closed circuit oxygen generating type equipment dull not be wed. 24 Each location ahall develop written procedure* covering the aelaetiari, us*, and maintenance of reapiratora. 3. APPROVED RESPIRATOR* 111 Only equipaoct* approved by the National Institute for Occupational Safety and Health/Mine Safety Health Administration (NIOSH/MSHA) ahall be wed. 3.1.1 Reapiratora ptirchaeod attar September 30, 1S74 shall be manufactured per quality control plan ap proved under Title 30, Code of Federal Regulation*, Part il. Such equipment will bear an approval label beering the letter! "TC instead of "BM." 1.1.1.1 lUMpttona. Self-contained breathing ap> paratu* approved by Bureau of Minei under Schedule 13 through 13-E equipped with an audible snd^f-servic* life indicator and gaa moaka approved by Bureau of Mines under Schedule 14F are approved for use until further notice provided they (1) were fabricated, assembled, or built under an approval or any modification thereof issued by lha U. S. Bureau of Mince. Department of the interior. (2) were purchased on or before June 30. 1975, and (1) arc anainuieei' in aa approved condition. 34 A liet of tkt naapimon end their manufacturer!, certified by NIOSH may be obtained by requesting HE3P Publication Nn. NIOSH 75-119 plw canulativt sup plement* from: NIOSH Tasting end Certification Laboratory 944 Chcatmit Ridge Road Margamewx, WV 26505 Division of Technical Sarviea* NIOSH Robert A. Taft Laboratories 4616 Coltanbia Parkway Cincinnati, OH 45226 Vendor* *n4 imrshsndia* issifnaiisna tr* gissn t* dtacrib* mersrlals and at n* inalud* all assaatakla *rs*ucr. Subatitulians by auppliara era ta be ms snip *n saarsvsl *f tbs Iscsl authsnty inirlsnnf fb* us* *f thia ttandai aueccwuirrta wj m yilii I* T. DUP 0960559 e. DU 040769 52H P*g* 3 RESPIRATORY PROTECTIVE EQUIPMENT JANUARY i|u Thlt Pigt Rtv Pel 1H6 4- 64 3.3 At the present timr. then- are no approval achcdulr* fur air-*u|]>iirtl uita- 3.4 A list of the aevrral tyyir* of rrtpiratory protective equipment, rn-lhnd of operation, u*e, limitations, and rrmrk.i i* givr n in T*blr 1. For additional information in thi* rrgard. rrfcrrnrr should be made lo: "Practice*, for Rerpiratory Protection." ANSI ZS8.2. Amcriran National Standard* Inatitute, Inc, 1430 Broadway, New York, NY' 10018 Rrpiratnry Protrrtivr Equipment, Data Sheet D-444. Nntinnal Safety Council, 425 North Mlchifan Avenue. Chicago, IL 60611 "Rr*piratory Protection Program, A Manual and Guideline," American Induatrial Hygiene Association. 475 Wolf Ledge* Parkway. Akron. Oil 44.111 4. USES AND LIMITATIONS 4.1 li*er* of rerpiratory protective equipment ahall have medical approval. 4.2 Tht alr-purlfylng raiplratora; l.t,, eanlitir gat maaici, chemical cartridge reapiratora, and machanb eat tlltar reaptratera (Table 1C) ahall net be uaed ler reacua work, or tor emergency work el any natura. Thi* i, krtuv there rerpirators do not aupply oxygen and tlterefure do nut protect againat poaaibte oxygen defieiencie*. Other rrnaona for thi* requirement are that: a. Ga* n*k* are intended for uae with no more than 2 prrreni by volume of moat toxic garea. d. If toy leakage i drtectrd by mr 11, laaie, eye*, note or throat irriution. e. If high breathing resistance develop*. 4,4 Air purifying reapirator* ahould not be uaed in atmntphrrea immediately dangerous to life and health or when the contaminant ha* poor warning propertie*. ex cept for eeeape. 4.8 liter* ahould arlect eaniatera and cartridge* apecifically approved for the toxle ga* and eonrentration to be encountered. Caniater maaka that bear the label "AIL Service," "All-Purpoae," or "Univernal" ahould not be uaed for a apeeifie gaa or vapor if a eaniater it available for that apeeifie gaa or vapor. 4.8 Although telf-conlained breathing apparalu* or com bination air-line and aclf-contained breathing apparatut have no concentration limit in regard to toxicity, many toxic gate* and vapor* are flammable and the u*er could be expoaed lo a potential Tire or explotion. The 2-percent concentration limita approved fnr toxic gaa removal with canitter-type maalu it within the flammable range for tome gaaet. Work in atmoapheret in or near the flam mable range it prohibited. When the possibility of flam mable atmoapheret exiat*. a check ahould be nude with an expioaimeter end permhwable concentration* con firmed prior to entry. Sundard F6J provide* information and instruction* for uae of portable flammable vapor and gat detectora. S CD CJ* CT > U_l Del 4.7 Reapiratory protection it required for cancer ninprct gent*. Refer to OSHA regulation* for apeeifie requiremenu. Section 1910.1000 acriea, and to 52T. b. Chemical cartridge reapirator* are intended for u-r in *ignificiintly lower toxic gaa concentration* than canuter ga* inaak*. Limit* vary from 0.08 percent maximum to 0.1 percent maximum. 4.8 An uneonlaminated aupply of air mutt be aaaured when uting a hoae auak with blower. I. SELECTION 4.3 The following warning aignx require immediate morn In fre*h air: a. Inroinforulilr heat in the inhaled air. (A properly oprrnting eaniater will become warm on ex. pnoirr :n certnin ga*ea or vapor*, but a eaniater which Iv-mmr* rztrrmely hm indicate* that concentration* above the caniater limit have been encountered.) b. tf nauaea. limine** or aign* of distress develop. C. If tlir eaniater ha* a window indicator which lo>w, die specified color change. 8.1 In aeleeting a reapirator. the following faetor* (5.1 5.1J.1) and Tablet 1 and 2 ahould be conaidered. Engineering Dept Report. Accetaion No. 15167 "Retpirator Selection," alto will provide guidance. a. Nature of the haaard b. Severity of the haaard e. Type of contaminant d- Concentration of the eonuminam . Period protection it required I. Location of the contaminated area with reaped to a aource of respirable air Pomm nrvwM Mm turn OSH* nfula '`JNFIDENTIAI ftM.1000 i DUP 0960560 DU 040770 + A' JANUARY 1M4 C L. .Thia Paga Rav Feb 1H1 respiratory protective equipment S2M Pag* 3 g. Expected activity of the wearer ' h. Operating characteristic# and limitation! of the available reapiratore I. Safety regulation* of atate or local governments 5.1.1 Self<oMained breathing apparatua rated for "a'f leaat 30.mimite aervice time ahould be uaed for entry into an irreapirable atmoaphere. 5.1.2 Self-contained breathing apparatua with leaa tlian a 30-minute air aupply ahall be uaed only for emergency egreaa and not for reacue work or reentry. 5.1.3 Operating time for self-contained apparatua ia tjtaaed on moderate work ratea. Operating time ia reduced by inrreared reapiration required by heavy exertion. .3 5.1.4 Only eelt-contained breathing apparatua. or eomblnatlon alr-Une respirator and aell-oontalned breathing apparatua, ahall be uaed In oxygon-deficient atmotpharaa or where the contaminant la, or might be, Icnmedlately dangeroue to Mia. The. air in Utc seifcontained unit of tha combination,air-line rerpirator ami jjelf.contained breathing apparatua ahall be u*d only for rrrr til event the hoae-line tuppiy of air i interrupted. .The volume of thia exit aupply may vary for different ap plication*. but ahall be ample to allow the worker auffteiem tr to cop* fptm th eomtminattdi ir. In my ce, thia tuppiy ehall not be leaa than 3 minutea. Con* aideration ahould be given to using only positive pressure units. 5.1.5 Escape masks are uaed only while the wearer leaves a contaminated area. They arc approved under iuhpart 1. 30 CFR Part 11 and have a half mask facepiece, or a mouthpiece. Where eye irritation ia a eonliberation, a full facepiece should be used. For escape or -mrrgency purposes from unknown concentrations of ex.remely haxardou* atmospheres (any gia or vapor having i rated lethal concentration LC SO of leaa than 10 ppm), a pressure demand self-contained breathing apparatua or combination pressure demand supplied air respirator with liressure demand self-contained breathing apparatua shall lie used. 5.1.5 Entry Masks. Use self-contained breathing apparatus with at least a 30-minute air supply or a com bination supplied air reapirator with self-contained breathing atr apparatua. Unit ahall be of the pressure demand type. The entry masks ahould be located outside of the potentially affected area in a noneontaminated area tnd properly identified and protected. 5.1.7 Fir* Fighting. Use aelf-eontained breathing .apparatus with at least a 30-mimite air supply. Unit ahall be the pressure demand type. 5.1.5 Schedule 13E of the U. S. Bureau of Mines -on self-contained breathing apparatus requires a re* msining service-life indicator or warning for compressed breathing air (exeept for self-rescue). Some equipment now on plants may not have these alarms. These can and ^should be obtained from equipment suppliers for ap paratus not so equipped. 5.1.5.1 When the device ia a combination self. contained breathing apparatus and air-line reapirator (aupplied-air reapirator). either a manual or automatic valve(a) shall be proviilcd to cliangr to the self-contained air aupply if the air-line supply fails, and to prevent the -wearer breathing contaminated air from the outside .atmosphere. If a manual valve it provided, it shall be .easily operable tnd located in a position v,laic it is con* venient.to the wrarrr. If an Auiumitii; valve is provided, s warning also shall lie provided to nlrrt lii-- wi-arrt dial be is breathing from the srlftoulauted ir -o|>|dv. ti, -Ion Ins normal airline suppli fail*, ot Cd) wl-t llie self. contained air supply falls le-luw 9.1 prri'riii of it, foil cun. -tamer pressure. A quick ibarunnrct and iln-ik ialu- 'diall he provided between the apparatus and the nii'-lio. mpph hose to permit ready eacapr from the area, and in prevent loss of breathing air from the device or inhaling die surrounding atmosphere, respectively. 6. BREATHING AIR 5.1 Both purchased and manufactured breathing air shall meet or exceed the reqirementa of the specification for Grade D breathing air as described in CompreaKd Gat Association Commodity Specification G-7.1. See table below for Grade D analyiis summary, anti G-7.1 for details including sampling and analytical procedures. Oil 2 CO CO, Hydrocarbons (condenaed) HjO 1 reetNng Air Analyst* 19.S pnmtiK min to 23.S percent matt 20 ppm max IjOOO ppm max 5 mg/m1 Dc point leai than 0e laweit prababie temperature ta he anaourtttrtd Balance Oder Feta af prowomtaad adon t Sc 54T fa* 4u m 4mi vtadinf pavuM* aiya** tMimn. TVw m nftftry t# pnm and mpptf' at air flow m Ua* 5*ak. Far uWw r*(tt ta "HaaAaah if Camprff Cim * Avaitaeia tram Comorattad On Auoeiaioft tne. 900 nrm a*. Htm ton, nv 10091 Pomona prmtad in rad ara tram OSha raguianona. Saction ttio.UK DUP 0960561 IV IIN irilJN O O DU 040771 S2H Pig* 4 RESPIRATORY PROTECTIVE EQUIPMENT JANUARY liu Thin P#M Rav June 111? + ira 8.2 A reliable mpplier should be chosen. Vin ht* fartliur* (ci determine hii degree of control over the crpertUon. If *n tir compressor ii used, ii iKouId be nonlubnratrd. tf lubricated compressor It used. it mux havr carljon monoxide or high temperature (or both) alarm. Anrual cnntirtf ahould be made to aaaure equip ment and proredurra have not changed. Atao. demand-type air-aupplied reapiratora and demandtype aelf-eonuired reapiratora operate under negative prraaure when the wearer inhale*- Since tome Inward leakage of eontiminant may be poaaible, the** type* provide much leaa protection. When purehaaing new airaupplied. aelf-conlained or combination type, pressuredemand ahould be apacified. mr: 6.3 Preferably, crrtificd breathing air ahould be purehaaed from a reliable aupplier. If a choice ha* to be made between certified air from a queationable aupplier and un certified at* from a reliable aupply. the latter would be the recommended choice. 8.4 Determine if the air it provided by eompretaion or reconXitunon (mixing nitrogen and oxygen) and analyxc aa followi: MX hod st Preparation C-ropr--uvt - -upplier lie, iwit fill rytln-fc-rv with any gaww othrr than ar. flrvnfveaaon - supplier fill- evlmler- with gaarv other than air Rnrofwtitntim Ana lyatt Recommend Check 10 percent of cylinder* Trent each lot for ppm CO and otkir. Analyse all cyiindera for percent Og. Cheek 10 percent of eyiindrra from each lot for ppm CO and otkw. Analyat all eyiindart for percent 6]. Check 10 pereant of cylinder* Cram emIi 1st fsr ppm CO an4 8.5 In *ddition complete analyst! ahould ba oon* ducted periodically to aaaure oompliance with table in 6.1. 7. PRECAUTIONS 7.1 An eutcneivc list of instructions in use and precautions for each type of respirator i* given in ANSI Z88.2. Some precautions are given in Table I under heading* of Limitations and Remarks. 7.2 The manufacturer'a instruction! or precaution* of the A NSI standard ahould be posted with th* respiratory device. 7.3 All ptnent who may have oeeaslon to uae respiratory devices, or cauae them to be uaed, ahalt be properly trained In their uae. Also, in execution of plant disaster plana, proper training in uae of respiratory protective (quipment will aid in the performance of wnooth and safe rescue or repair operations. 7.4 A alight negative preaaure occurs inside the facepieee of fare-fitting air-purifying respirator* (Table 1C). Care must he taken to obtain an effective seat between the farepirce and face to prevent inward contaminant leakage. Pomena pwitof ln'raS ar* Horn OSXA regulation*. Section 1110.134 74.1 A pmature-demand type aelf-containrd respir ator or air-aupplied combination self-contained ahould be ued m atmosphere* containing contaminants which can not be detected by amell or where special precautions must be taken to prevent the wearer from inhaling any trace of contaminant, tn thit type equipment, e small ptwitive preaaure ii maintained inaide the feeepieee at *11 ume*. such that If * leek ahould develop, there would be no leakage of contaminant into th* facepiece. 7.S A proper teal cannot bo oalabllahod It tho temple bare ol eye glaaaea extend through the tailing edge of tuU-taca maaka. 7.1 Contact lenses shall not be worn with full-face mask*. See.SAH, 7.7 All eyepiece* in full-face maaka approved by the Bureau of Minea will pas* th* ball drop teat, but some plastic eyepieces may not pea* the needle (hop teat (S4H). Current schedules of the Bureau of Minea, however, require that eyepiece* shall maat th* pertinent require ment* for impact and penetration specified in the moat recent ANSI Z47.1. "Safety Cod* foe Eye Protaction." 7.7.1 Full-face masks have been developed with system* for mourning corrective lenaca inaide the facepiece. Contact the manufacturer* for teeistance. 7.1 Problem* in the use of self-contained breathing ap paratus (SCBA) at low temperature* include failure of exhalation valve* due to frosen exhaled moisture and failure of the regulator or low air preaaure alarm. These problem* ean be minimised by: a. Uaing only air with low moisture content b. Inatallir* a nosacup in the mask e. Thoroughly drying maaka after cleaning d. Keeping SCBA** in a warm location between use* (if practical) a. Viaualiy checking preaaure gage* for low air supply I. Following manufacturer's instructions for use in ubfraaaing environment* Antifog compound* can 1* used to coat the inside and outride of the faeepieee to prevent it* fogging, down tn about 32*F (0*C). Below 0*F (~1C*C), however, antifog CONFintMTi'. DUP 0960562 DU 040772 NS JANUARY 1984 "Ml PIP* R*v Jun* 1982 RESPIRATORY PROTECTIVE EQUIPMENT 2H S98 S rnriii'fl18l* will n"t_ prevrnt orvrrr fogging. Anlifng (iniipniiiul* brrak ilnwn and rrquire rcappiiralion j ir- ri* itltr ally. I'.9 \ h*lf.m*k (oirpinre *lmulii not interfere with Uir I.rarer'* uae (apeetarlr* nr guggle*. Proper rlertmn nf J^|iii|inirnt normally will eliminate any problem nf prrqirr i ill xiirn tiling a rnmliinalinn nf half-innik facepiece and i*e'r ir or guggle*. !,10 IVrum* required In wear reapirator* mut lie cle*n !>*' m dir rr of the reapirator *eal. I.ii tjnivriiliund rripiralor* do not commute in .'in' harrier lo trn*im*inn of gpcceh. The rrapiratnr ivliaintmti vilve uaually provide! *ti*fartnry pilliwiy (e i^rrlt lr*n*ini**ion over IhOrt dlltincil in relatively e'ulel trail. ,S|vrrli lramtni**iun device* are aviilaldr. Caution: rlirvk fur acceptability of rlrrtrioil cln**ifi'it-! fur me in hazardtiti* area*, ami NlOSlt approval r.n, niTiuiiied on wipirator). i 12 I ittr for air *upplv ahimld lie !rler1e<l to remit T.. m.i al* tn wliirlt they may be cx|Mi*ed. i'i CARE__, i 1 General. A rentralitrd miintenancr, cleaning. ind '..rai:<- ituttiin hmiM lie uaetftu care for rr*pir*tory I rmernie rquillinem. !jTM . - .. r r < .. ^2. .Procedural Applicable to-Aft Respirator* 'i 8.2.1 Inspection. All rrspiriior* shall 1m* inspected cutV.inrU l**frc *nl fu*r each we. Those held ready for *&*'***? ur shill 1$ inspected at least monthly and each use. 8.2.1.1 5e|fa<?ontainccia breathing apparaius shall tnpretcd monthly. 8.2.2 Malntsnsnco. When it ia necessary to replace * nrh or deteriorated parts, only those made sprcificilW fir tfie rleviee shill is* usrii; and die repair work shall be arr*nttlished by trained personnel. Fnr iimwi plants, it is j r' frraltU* that parts of this type (suirnMnnhltrs) lie r--plnr*r| a* a iinii or rrtnrtir<l to the manufacturer or fur* t>>r> truiiKol |*rs(timr{ for repair. 8.2.3 Cleaning and Olslnfactlng. U<**|>irittry [*rntrrtive npii|Ho^o(, rxrrju canisters and rartridfes. a imdil _!* cleaned and <lisinfeeted tfter each u*e. unless d*2ii vd to iiHliviikuiia, when tficy ahifl lie rlcanrd a* iirW'..nr> to aaaurr a unitary ami properly functioning iiin*k. 8.2.4 Storage. All rropiratory protective equip ment .hall lie atored in a clean, cool, dry place, out of dlrret ~ilhliglil' umler condition, of moderate lem* pertturr. They ahould lie located for cany eecr**bilily anil the location adequately labeled if neceaaary. Fe.ptrainri iluuild tart lie atored in aurh place, ai lockeri or tool Imaea iinleaa they are in carrying cate* or iioxet. 8.3 Soeelal Procedures lor Maintaining, Claanlng, Cialniaetlng, and Storing Raaplratora 8.3.1 Sell-Contalnud Breathing Apparatua. In ili-niAntl-tipe {'Talile 111), the cylinder prciwure .hall lie htUiI monthly ami recharged if lielow rated preaaure oaTnont griniap in too ora tram OSH* raguianooi. Section ttto 13* (rnrrrctrd to 7fl*V (21*C)]. Rerhtrge aflrr each we, following inanufarturrr'a imtructiun*. Kollnw mtnufK< mrrr'a iiwtnjrtiima mi tlghtnra* tratit fur aelf.eontained rfnfplrator* and hydroatatie teating of cnmpreaoed.air eylin* tier.. A wore that regulator and low-prriaure alarm! are functioning. _ 8.3.2 Cylinder* ahall he teated and maintained ai preaeribrd in the Shipping Conuiner Specification Regulation! of the Department of Tramiportation (49 CFR. Part 173). * 844 lloi# Masks. Check the blower periodically fur prnper operation. Cheek how for wer ami tear after each uie and clean when neceaaary. Keep ho*e capped when not in me to prevent entrance of duit or other contaminant!. 1.3.4 Alr-Un*. Raaplratora. The farepieee ahnuld la* aervieed after each uae, aa fur all utlipr reipiralora. The flnw control valvea ihmtld lie imported after each u*r and cleaned and repaired, if nee.ecaary. Aff.Iine hoar ahnuld be cheeked for wear anil tear after earii uw ami lie cleaned when ireriaary. See Kill on air-aupply ayalem. S.3J Salf^laaeuara. Monthly imperii,m i. the inuat important phaae of the maiiuenanre program with tliia tyjw nf equipment itccaiwe tlie rquipnirnt i* arltiom uaeii but muat aiwaya lie rraiiy. - 8.3.8 Chamleal Carlridga Raaplratora 8.3.5.1 In plant* with crmrtiir.rd maintenancr itatlona. cartridge* omnetime* are diaeiriled after a pteiletrrmined period nf uae. Haaktll kaberatory will eiuhliah ehemieal cartridge breakthrough timei for' peciHe Imie atniei|ilere* on requeat to 11.1,1 plam. ir eiubliahing uae period criteria. j 8.5.5.2 Replarement ahnuld lie ineorpe. n,' .. . the miintenanee ami cleaning program. In man c**ci. wearer ahould not lie rripunaililr fur arhedulirg reidace* inent cartriilgea in hi* rropirator. However, ehemieal car* tridge* ahnuld lie cltangeii when the wearer ilrtrct* the mior or irritating effect nf the containment. -- I.1I.J Where the eapected eomaminant ha* no mlnr or irritating effect, chemical cartridge rrapiratora hall not be uwd. 8.3.84 Mouthpiece reapirator* ahall not be uaed fur routine prntrelinn. liecauae breathing through the mnudt may hyp*** the mine nr irritation warning of an ex* funded cartridge. Theoe do nut have N10SII approval. 84.84 Particular care ahnuld lie exerriied in the itorage of chemical canriilgre liecauae they ilrteriorate if r1pound to excel* tnniiture and to gairoua air eon* taminant*. Cartridge! iliuuld not be atored in the area whar* th* workman uae them. 84.7 Maehanieal FWar Ratplralorg. Meehenic*! filter* of the "throw-away" type ahould Iw dtacariied when the breathing reaiauner Ivenme* Imtheranme to the wearer. Siime meeltaniral filter reapiratur* u*e recleanable filter*, in which rear die filter* are cleaned when the reapirator ii being oervieeil. ' DUP 0960563 DU 040773 S2 M Page RESPIRATORY PROTECTIVE EQUIPMENT ____________ _________________ _______________ JANUARY 1|$4 This Pag* R*yS*pI 1ITI tO' TAIL! 1 " TYPES OP RESPMATORY PROTECTIVE EQUIPMENT (CONf0 ON PAQC TJ Table 1A - Alr-PuppMed SuN Mt nod oi Operation Air supply from suppiied-air breaming apparatus. Saa S1H on air-distribution sysiam. UM Ooereting or raasir work wnare there is aipotura to suesiancas mat ara irritating or eorroanra to the skin and mucous membranes. Out wnara ma atmosphere is not immediately dangerous to life If immediately dangerous to life, tne respiratory equipment should Be provided as In S t 4 and the air-supplied suit snouid be kept witn a slignt positive pressure In sny ease the air 'i supply should net be lass than 18 minutes to allow the worker sufficient air to escape from the contaminated area. A body hameae is required to handle me hose line and me life line, which always snouid be worn as a rescue device Helper (weanng similar air-euppiied suit. Body her. nass. and life line) should be assigned with no other duties than to obaeive the man m the nasardous area, attend me iiie line and m emergency, ask for help and be ready to rescue tne worker (See S18Q) Umnitom ; The weanng of an impervious suit for any extended period is extremely fatiguing and ' dangerous unless it is well ventilated. The suit must be impervious to the substance an. countered. With the longest hose length for which use is intended assembled to me respirator, and the lowest inlet pressure intended for operation introduced to the air-euppiy hose, constant how units must deliver at least e efm measured at tne facepiece The exhalation resistance at Si liters per minute snail not exceed i men of water. When hairnets or hoods are used, the same requirements must be met except that the flow rate must be at least 8 dm For both types of assemblies with the highest inlet pressure and shortest hose length, the maximum flow shall not excesd IS dm. nmarts No NIOSH* approval. For additional information, see Fleming. A. J.. O'Alonso. C. A., and Zapp. J. A , "Modern Occupational Medicine." Chapter 7. "Protective Clothing tor the Chemical industry," Lea and Febiger. Philadelphia (18801. A Ranqua-Hitsch vortex tube** wont as a portable refngerator can sattstactonty cool com. pressed air tor personnel weanng Industrial protective clothing. The vortex tube Is light and small, and can be strapped to tne belt where it does not interfere with pnysicai movement. The tube operates on 20 to 23 cfm of compressed air at 80 to 100 psi and delivers IS to 18 etm ot air cooled SO to 60*F oeiow the mist sir temperature. The tube can be reverses end used as a heater. * Nations* insi-iwts tor Oceup*enst * Aviao*s gneo O io Houston TX 77Q0* ComoaPy ana Htanti, u %. 0*tt of Him. Education ana wwtaro ! _. t .. 4 " * 's //r / i t ti L \ X.% > s [ * 'CONFIDENTIAL Pl'JlIjJ DUP 0960564 m JANUARY 19*4 I2K 67 YW* ^*9* ** 0t yPO RESPIRATORY PROTECTIVE EQUIPMENT A9 7 1*?! i )n HII j!!lH I ill! pi & Iiii! ! I ii! !ii i; !! I il! tl11 uu ijiMIiil iIiI JiItn.,,i.l,l iiii i { linjlfl I* * 01 *1iIj II Iin' il i ill !!i iij l]1 i ilfjHujL i;I|l|ji|j! mu i'.'lllilii! If Kli; i| ijii U* Cf toMd ckcuil oayorm f W fiUoq t f p l pqulpmsot is not IppiOvPd lor u l* ill 8ii'ii <?* Slip!, MS III Jl] 111! i! a <T5 O lit ill in, III! O' : ii i!i ill i! il I mm DUP 0960565 DU 040775 68 DU 040776 feBtta jiuiiUSaafBii^ DU 040777