Document 8RG1Oav6eVa6r9nNBOd7y7d9Z

SATURDAY, MARCH 25, 1972 WASHINGTON, D.C. Volume 37 Number 59 PART II DEPARTMENT OF THE INTERIOR Bureau of Mines Respiratory Protective Devices; Tests for Permissibility; Fees No. 69--Pt. II------ 1 CAPCO KIM nnnnfirM 6244 RULES AND REGULATIONS Title 30--MINERAL RESOURCES Chapter I--Bureau of Mines, Department of the Interior SU3CHAPTER B---- RESPIRATORY PROTECTIVE APPARATUS; TESTS FOR PERMISSIBILITY; FEES PART H--RESPIRATORY PROTEC TIVE DEVICES; TESTS FOR PER MISSIBILITY; FEES PART 12--SUPPLIED-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 36 Stat. 363, as amended 37 Stat. 681 (30 U.S.C. 3, S. and 7), and the authority vested in the Secretary of the Interior and the Secretary of Health, Education, and Welfare under sections 203(h), 204, and 508 of the Federal Coal Mine Health and Safety Act of 1969 (30 U.S.C. 842(h), 844, and 957). there was published in the Federal Register for March 10, 1971 (36 F.R. 4652) a notice of proposed rule making wherein it was proposed to revoke Parts 11. 12. 13. 14. and 14a of Subchap ter B, Chapter I, Title 30, Code of Federal Regulations (Bureau of Mines Schedules 13E. 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 prr.-osed regulations specified that prcvct-.on factors for certain types of respirators would be determined by tiie Bureau during the course of testing. A suggestion was received that protection factors be determined for all types of respirators. After thorough considera tion of this issue, the Bureau and the Institute have decided that although the concept of protection factors Is valid, present technology in this area is 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 ciata in order to Incorpo See. 11.1 1U 11-)--1 1J I. 4 Subpart A--Gvneral Provisions Purpose. Approved respirators. Selection, lit, use, and mainte nance of approved respirators. Definitions. Incorporation by relereace. Subpart B--Application lor Approval rate requirements for promotion factors into Part 11 at a later date. Other significant technical revisions are: (1) Performance req:,..-ements have replaced certain design . *rcLfications; and (2) tests have been Included for powered air-purifying respirators. - Certain procedural revisions have also 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 technical II. 10 11.11 11.12 11-20 11.21 11-22 AppUcatlon procedure*. Content* of application. Delivery of respirators byappli cant; requirements. Subpart C--Foes Examination, inspection, and testing of complete respirator assemblies; fees. Examination, inspection, and testtng of tespirator compo nents or subassemblies; fees. Unlisted fees; additional fees; payment by applicant prior to approval. requirements (Subparts G through MJ. Expanded and more stringent quality control requirements have been estab lished (Subpart 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 i 11.2). A suggestion was received that models submitted for testing and approval be made only on regular production tooling Subpart 0--Approval and Oitapproval 11H0 llfil 1U2 1123 1124 llfifi 11.36 Certificates of approval;scope of approval. Certificates of approval; contents. Notice of disapproval. Approval labels and markings; ap proval of contents; use. Revocation of certificates of ap proval. Changes or modifications of ap proved respirators; Issuance of modification of certificate of approval. Delivery of changed or modified 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 11.40 11.41 11.42 11.43 approved respirator. Subpart 5--Quality Control Quality control plans: filing requirements. Quality control plans; contents. Proposed quality control plans: aprovat by the Bureau and the Institute. Quality control records; review by the Bureau and the Institute; revocation of approval. sary to build production models with no Subpart F--ClaiiiRcation a) Approved Bttpira- adequate assurance of ultimate approval. ton; Scop* of Approval; Ahrtotpheric Hatords; Consequently it was decided to continue Sewic* Tim* 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 H 11.11 (e) and 11.30). 11.50 HA! 11.52 11.53 Types of respirators to be ap proved; scope of approval. Entry and escape, or escape only; classification. Respiratory hazards; classifica tion. Service time; classification. Subchapter B of Chapter I, Title 30, Code of Federal Regulations, amended by SubportG--Gn*ral Construction and Performance Requirements revoking Parts 11, 12. 13, 14, and 14a, 11.00 Construction and performance re and substituting therefor a new Fart 11-- quirement*: general. Respiratory Protective Devices; Tests for 11.51 General construction require Permissibility; Fees, as set forth below is herewith promulgated and'shall become effective 60 days following publication In the Federal Register. 11.63 11.63 11.64 ment*. Component parts; minimum re quirements. Test requirements; general. Pretesting by applicant; approval W. T. Pecqra. Actin'/ Secretary o/ the Interior. 11.63 of test method, by the Bureau. Conduct of examinations. Inspec Februart 17, 1972. Elliot L. Richardson, Secretary of Health, Education, and Welfare. 11.66 tions. and tests by the Bureau and the Institute; assistance by applicant; observers: recorded data; public demonstrations. Withdrawal of applications*, re March 10, 1972. fund of fees. FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO KIN 0000605 RULES AND REGULATIONS 6245 Subpart H--Self-Contained Breathing Apparatus 11.70 11.71 11.73 11.73 11.74 11.75 11.75 11.77 11.78 11.73 11.73-1 11.83 11.81 11.83 11.83 11.84 11.85 11.85-1 11.85-3 11.85-3 11.85-4 11.85-5 U.85-5 11.85-7 U-85--3 11.85-0 11.85-10 11.85-11 11.85-13 11.85-13 11.85-14 11.85-15 1133-18 11.85-17 11.85-18 11 85-19 11 'o 11 M 11.32 r. 07 U 94 Self-contained breathing appara- tus; description. Seif-contained breathing appara tus; required components. Ereathlag tubes; minimum re quirements. Harnesses; Installation and con struction; require ments. Apparatus containers; minimum requirements. Half-mask facepieces, full face- pieces. mouthpieces; fit; mini mum requirements. Facepieces; eyepieces; minimum requirements. Inhalation and exhalation valves: minimum requirements. Head, harnesses; minimum re quirements. Breathing _ gas; minimum re quirements. Interchangeability of oxygen and air prohibited. Compressed breathing gss and liquefied breathing gas con tainers; minimum require ments. Gas pressure gages; minimum re quirements. Timers; elapsed time Indicators; remaining service Ufe indica tors; minimum requirements. Hand-operated valves; minimum requirements. Breathing bags; minimum re quirements. Self-contained breathing appara tus; performance requirements; general. Component parts exposed to oxy gen pressures; minimum re quirements. Compressed gas filters; minimum requirements. Breathing bag test. Weight requirement. Breathing resistance test; inhala tion. Breathing resistance test; exhala tion. Exhalation valve leakage test. Oas flow test; open-circuit ap' paratus. Oas flow test; closed-circuit ap paratus. Service time test; open-circuit apparatus. Gervloe time test; closed-circuit apparatus. Test for carbon dioxide 'in In spired gas: open- and closedcircuit apparatus; maximum allowable limits. Tests during low temperature op eration. Man teste; testing conditions: general requirements. Uaa tests 1. 3, 8, ax>4; require ments. Man test 8; requirements. Man test 6; requirements. Man tests; performance require ments. Oas tightness test; minimum re quirements. Suhpart I--Ooi Mask* Gas masks; description. Gas masks; required components. Canisters and cartridges in paral lel; resistance requirements. Canisters rad cartridges; color and markings; requirements. Filters used with canisters and cartridges; location; replace ment Sec. 11.95 Sec. Breathing tubes; minimum re 11.124-0 quirements. Breathing tube ten: minimum requirements. 112)6 Harnesses: installation and con 11.124-10 Airflow resistance tost. Type a struction; * minimum require and Type AE supplled-air res ments. pirators; minimum require 11.97 Oas mask containers; minimum ments. requirements. 11.124-11 Airflow resistance tc*t; Type B 11.93 Half-mask facepieces, full face- and Type BE supplled-air res pieces. and mouthpieces; lit; pirators; minimum requ.re- minimum requirements. ments. 11.99 Facepieces; eyepieces; minimum 11.124-12 Airflow resistance test; Type C requirements. supplled-alr respirator, con 11.100 Inhalation and exhalation valves; minimum requirements. tinuous flow, class and Typo CE suppUed-alr respirator; 11.101 Head harnesses; minimum re minimum requirements. quirements. 11.124-13 Airflow resistance test; Type C 11.103 Gas masks; performance require supplled-alr respirator, demand ments: general. class; minimum requirements. 11.103-1 Breathing resistance test; mini- 11.124-14 Airflow resistance test; Type C mum requirements. supplled-alr , respirator, pres 11.103-3 Exhalation valve leakage test. sure-demand Class; minimum 11.102-3 Facepiece tests; minimum re requirements. quirements. 11.124-15 Exhalation valve leakage test. 11.102-4 Dust, fume, mist, and smoke ' 11.124-18 Man tests for gases and vapors tests; canisters containing Al supplled-air respirators; gen tera; minimum requirements. eral performance requirements. 11.102-5 Canister bench tests; minimum 11.124-17 Man tests for gases and vapors; requirements. Type A and Type AE respira Subport i--Supplied-Air Respirators tors; test requirements. - 11.124-18 Man tests for gases and vapors; 11.110 Supplled-alr respirators: descrip Type B and Type BE respira tion. tors; test requirements. 11.111 Supplled-alr respirators; required ll.124-19 Man test for gases and vapors; components. Type C respirators, continuous- 11.113 Breathing tubes; minimum re flow claas and Type CE sup- quirements. plled-alr respirators; test re 11.113 Harnesses: installation and con quirements. struction; minimum require 11.124-20 Man test for gasee and vapors; ments. Type C supplled-alr respirators, 11.114 Respirator containers; minimum demand and pressure-demand requirements. classes; test requirements. 11.115 Half-mask facepieces, full face- 11.124-21 Tests for protection during abra pieces. hoods, and helmets; flt; sive blasting: Type A2. Type BE. minimum requirements. and Type CE suppMcd-atr respi 11.118 Facepieces, hoods, and helmets; rators: general performance re eyepieces; . minimum require quirements. ments. 11.124-22 Test for protection during abra 11.117 Inhalation and exhalation valves; sive blasting; Type AE sup check valves; minimum require plled-alr respirator; test re ments. quirements. 11.118 Head harnesses; minimum re 11.124-23 Test for protection during abra quirements. sive blasting: Type BE sup- 11.119 Head and neck protection; sup- plled-atr respirator; test re plled-alr respirators; minimum quirements. requirements. 11.124-24 Test for protection during obra- 11.120 Air velocity and noise levels; hoods and helmets; minimum requirements. stve blasting; Type CE sup- pUed-alr respirator: test re quirements. 11.131 Breathing gas; minimum require ments. Subport K 1 Dmt, Fume, ond Mist Respirators 11.123 11.123 11.134 11.134-1 11.124-2 11.124-3 11.124-4 Air supply source; hand-operated or motor driven air blowers; Type A supplled-alr respirators; minimum requirements. Terminal fittings or chambers; Type B supplled-alr respirators; minimum requirements. Supplled-alr respirators; perform ance requirements; general. Band-operated blower test; mini mum requirements. Motor-operated blower test; min imum requirements. Method of measuring the power and torque required to operate blowers. Type B supplled-alr respirator; minimum requirements. 11.130 11.131 11.132 11.133 11.134 11.135 n.138 Dust, fume, and mist respirators; description. Dust, fiuns and mist respirators; required components. Breathing tubes: minimum re quirements. Harnesses; installation and con struction;- minimum require ments. Resplraftw containers; minimum requirements. Half-mask facepieces, full facepieces, hoods, helmets, and mouthpieces: flt; minimum requirements. Facepleees. hoods, and helmets: eyepiece*; minimum require ments. 11.124-5 Type C supplled-alr respirator. 11.137 Inhalation and cxn.vlatinn valves: continuous flow class;' mini minimum requirements. mum requirements. 11.138 Head harnesses; minimum re 11.124-8 Type C supplled-air respirator. quirements. demand and pressure demand 11.139 class; minimum requirements. Air velocity and aolce levels; hoods and helmets; minimum 11.124-7 Alr-supply line teats; minimum requirements. requirements. 11.140 Dust, fume, and mist respirators; 11.124-8 Harness test; minimum require performance requirements; ments. general. FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 r-MDnn umm nnnnfiDfi C246 RULES AND REGULATIONS See. 11.140-1 r.voamyt acetate tightness test; dust, fume, end mist respire* tors designed for respiratory protection Against fumes of various metals having on air Sec. 11.163 Chemical cartridge respirators; performance requirements; gen eral. 11.162- 1 Breathing resistance test; mini mum requirements. and the National Institute for Occupa tional Safety and Health of respirators or changes or modifications of approved respirators; (b> to establish a schedule of fees to be charged each applicant for contamination level not less 11.163- 2 Exhalation valve leakage teet; the inspections, examinations, and test than 0.05 milligram per cubic minimum requirements. ing conducted by the Bureau under the 11.140-2 meter; minimum requirements. Isoamyl acetate tightness test; respirators designed for respira tory protection against dusts, fumes, and mists having an air contamination level less than 11.162- 3 Facepiece test; minimum require ments. 11.162- 4 Lacquer and enamel mist tests; respirators with filters; mini mum requirements: general. 11.162- 5 Lacquer mist test; minimum re provisions of this part; (c) to provide for the Issuance of certificates of approval or modifications of certificates of approval for respirators which have met the ap plicable construction, performance, and 0.0S milligram per cubic meter, quirements. respiratory protection requirements set or against radionuclides; mini 11.162- 5 Enamel mist teet; minimum re forth in this part; and (d) to specify 11.110-3 11.110-4 11.140-5 mum requirements. Air-purlfylng filter tests; per formance requirements; gen eral. Silica dust test; single-use or re usable filters; minimum re quirements. Silica dust test; str.gie-use dust respirators; minimum require ments, 11.16211.162- quirements. 7 Oust, fume, and mist tests; res pirators with alters; minimum requirements; general. 8 Bench tests; gas and vapor tests; minimum requirements; gen eral. Subpart M--Pesticide Respirators 11.170 Pesticide respirators; description. minimum requirements and to prescribe methods to be employed by the Bureau and by the applicant in conducting in spections, examinations, and tests to determine the effectiveness of respirators used during entry Into or escape from hazardous atmospheres. 11.2 Approved respirators. 11.140- 6 Lead fume test, minimum re 11.171 Pesticide respirators; required (a) Until March 30, .1974, respirators 11.14011.140- quirements. 7 Silica mist test; ml::.mum re quirements. 8 Tests for respirators designed for respiratory protection against more than- one type of dispersold: minimum requirements. 11.172 11.173 11.174 components. Canisters end cartridges In paral lel; resistance requirements. Canisters and cartridges; color and markings; requirements. Filters used with canisters and cartridges; location; replace or combinations of respirators shall be considered to be approved for use during entry into hazardous mine atmospheres, escape from hazardous mine atmos pheres, or both, where such respirators or combinations of respirators are; (1) 11.140- 9 Airflow resistance tests; all dust. ment. The same in all respects as those respi fume, and mist respirators; 11.175 Breathing tubes; minimum re rators which have been approved after 11.140- 10 11.140- 11 minimum requirements, Exhalation valve leakage test; 11.178 minimum requirements. DOP filter test: respirators designed as respiratory protection 11.177 against dusts, fumes, and mists havtng an air contamination 11.178 quirements. Harnesses; Installation and con struction; minimum require ments. Respirator containers; minimum requirements. Half-mask facepieces, full face meeting the minimum requirements for performance and respiratory protection set forth in this Part 11; or (2) fabri cated, assembled, or built under any approval, or any modification thereof, issued by the U.S. Bureau of Mines. De level less than 0.05 milligram pieces, hoods and helmets, and partment of the Interior, in accordance per cubic meter and against mouthpieces; fit; minimum re with the schedules set forth below; and 11.140- 12 radionuclides; minimum re quirements. 11.179 Silica dust loading test; respira tors designed as protection against dusts, fumes, and mists 11.180 having an air contamination quirements. Facepieces, hoods and helmets; eyepieces; minimum require ments. Inhalation and exhalation valves; minimum requirements. (3) maintained in an approved condi tion: (i) Self-contained Breathing Appa ratus, Bureau of Mines Schedules 13. March 5. 1919; 13A, January 21, 1930: level less than 0.05 milligram 11.181 Head harnesses: minimum re I3B, August 12. 1935; 13C, July 9, 1946; per cubic meter and against quirements. 13D. September 22, 1956; and 13E, July radionuclides; minimum re 11.183 Air velocity and noise levels; 19, 1968. quirements. Subpart l--Chamlcot Cartridge Kvspirators 11.150 11.151 11.153 Chemical cartridge respirators; description. Chemical cartridge respirators; required components. Cartridges In parallel: resistance 11.183 11.183- 1 hoods and helmets; minimum requirement*. Pesticide respirators; performance requirements; general. (II) Gas Masks, Bureau of Mines Schedule 14P, April 23. 1955. (III) Supplied-air Respirators, Bureav Breathing resistance test; mini of Mines Schedule 19B, April 19.1955. mum requirements. (iv) Filter-type Dust, Fume, and Mist 11.183- 3 Exhalation valv* leakage test; Respirators. Bureau of Mines Schedule minimum requirements. 21B, January 19. 1965. 11.153 11.164 11.155 11.156 requirements. Cartridges; color and markings; requirements. PUters used with chemical cart ridges; location; replacement. Breathing tube*; minimum re quirement*. Harnesses; Installation and con 11.183- 3 11.183- 4 11.183- 5 11.183- 5 Facepiece tat; minimum require ment*. Silica dust tat; minimum re quirements. Lead fume tat; minimum re quirements. () Nonemergency Gas Respirators, Bureau of Mines Schedule 23B. August 4, 1959. (b> After March 30. 1974, respirators or combinations of respirators shall be Dloctyl-phthslst* requirement*. tat; minimum considered to be approved for use during entry Into hazardous mine atmospheres, struction; minimum require 11.183- 7 Bench tests; minimum require escape from hazardous mine atmos ment*. ment*. pheres, or both, only where such respi 11.157 11.158 11.112-1 Respirator containers: minimum requirement*. Hair-mask facepiece*, full face pieces. mouthpieces, hoods, and helmets; fit; minimum require ments. 7. .-.-pl-cvs. hoods, and helmets; Authoxitt: The provision* of this Part 11 issued under sections 202(h), 204, and 508 of the Federal Coal Mine Health and Safety Act of 1969 (30 U.S.C. 842(h). 844. and 957) and 38 Stat. 369, as amended 37 Stat. 681 (30 U.S.C. 3.5, and 7). rators or combinations of such respira tors are: (1) The same in all respects as those respirators which have been ap proved after meeting the minimum re quirements for performnr.ee and respira tory protection prescribed in this Part . /cpieces: minimum require Subpart A--Genoral Provisions 11; and (2) maintained in an approved 11.150 11.160 ments. Inhalation and exhalation valves; minimum requirements. Head harnesses; minimum re quirements. 1X.1 Purpose. The purpose of the regulations con tained in this Part 11 is: (a) To establish procedures and prescribe requirements condition. 11.2--1 Selection, fit. li-e, arid nininto nance of nppro\cil rr^piraiorsv In order to insure the maximum 11.101 Air velocity and noise levels: hoods sad helmets; minimum requirements. which must be met in filing applications for joint approval by the Bureau of Mines amount of respiratory protection, ap proved respirators shall be selected. FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO KIN 0000607 RULES AND REGULATIONS 62-17 ntVKt, iu,ed. and maintained In accordancfc with the provisions of the American National Standard Practices for Respir atory Protection, Z88.2, obtainable from American National Standards institute. Inc.. U3C Broadway. New York, NY 10018. 11.3 Definitions. (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, filters, or respirabte gas source. (o' "Final inspection" means that ac tivity carried out on a product after all manufacturing and assembly operations As used in this part-- _are completed to insure completeness and (ai "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 91-596: 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, cither immedi (c> "Approval" means a certificate or ately or not immediately dangerous to formal document issued by the Bureau life or health: or (2) any oxygen-defi and the Institute stating that an individ cient atmosphere. ual respirator or combination of respi is) A "hood" or "helmet" is a respira rators has met the minimum require tor component which covers tile wearer's ments of this Part 11. and that the appli head and neck, or head. neck, and cant is authorized to use and attach an shoulders, and is supplied with incoming approval label to any respirator, respira respirable air for the wearer to breathe. tor container, or instruction card for any It may include a hcadhamess and con respirator manufactured or assembled nection for a breathing tube. in conformance with the plans and spec (t) "Immediately dangerous to life or ifications upon which the approval was health" means conditions that pose an based, as evidence of such approval. immediate threat to life or health or con (d' "Approved" means conforming to ditions that pose an Immediate threat of the minimum reauirrments of this severe exposure to contaminants, such Part 11. as radioactive materials, which are likely (c) "Auxiliary equipment" means a to have adverse cumulative or delayed self-contained breathing apparatus, the eil'eccs on health. use of which is limited in underground (u) "Incoming inspection" means the mine rescue and recovery operations to activity of receiving, examining, and ac situations where the wearer has ready cepting only those materials and parts access to fresh air and at least one crew whose quality conforms to specification equipped with appioved self-contained requirements. breathing apparatus of 2 hours or longer (v) "In-process inspection" means the rating. Is in reserve at a fresh-air base. control of products at the source of pro (f) `Bureau" means the U.S. Bureau duction and at each step of the manu of Mines, Department of the Interior. facturing process, so that departures (gi "Compressed breathing gas" from specifications can be corrected be means oxygen or air stored ir. a com fore defective components or materials pressed state and supplied to the wearer are assembled into the finished product. in gaseous form. (w> "Institute" means the National (h) "Concentration limits for radio Institute for Occupational Safety and nuclides" means the concentration limits Health. Department of Health, Educa set forth in Appendix B. Table 1. Column tion. and Welfare, I of Title 10 CFR Part 20. by the Atomic (x) "Liquefied breathing gas" means Energy Commission. oxygen or air stored in liquid form and (1) "dBA" means sound pressure levels supplied to the wearer in a gaseous form. In decibels, as measured with the A- (y) "Mist" means a liquid condensa weighted network of a standard sound tion particle with a size ranging from level meter using slow response. submicroscopic to macroscopic. (j) "DOP" means a homogenous liquid (z) "Not immediately dangerous to life aerosol, having a particle diameter of or health" means any hazardous atmos 0.3 micrometer, which Is generated by phere which may produce physical dis vaporization and condensation of dioctyl comfort immediately, chronic poisoning plitha'.ate. after repeated exposure, or acute adverse ('< ' "Dust" means a solid mechanically physiological symptoms after prolonged I" 1 particle vvliii a siae ranging exiv.-uve. . . :..:".`.croiCGp:c to ni.nroocopic. i "Oxygen deficient atmosphere" - -piraior:; "for entry into and means an atmosphere which contains ail from" means respiratory devices oxygen partial pressure of less than 143 pr-.v.dinj protection during entry Into millimeters of mercury (19.5 percent by .-'..I i scape from hazardous atmospheres. volume at sea level). m' Respirators "for escape only" (bb) "Pesticide" means (t> any sub :r.-ans respiratory devices providing pro stance or mixture of substances (includ tection only during escape from hazard ing solvents and impurities) intended to ous atmospheres. prevent, destroy, repel, or mitigate any 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 regulator, defoliant, or desiccant, as de fined in the .Federal Insecticide. Fungi cide. and Rodentlcide Act of 1947, as amended (7 U.S.C. 135-135k), excluding 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 number Z. mass number A=(N-(-Z). and atomic mass) which exists for a measur able time: decays or disintegrates spon taneously, emits radiation, and results in the formation of new nuclides. (ee) "Respirable dust" means a dust particle aerodynamically capable of reaching the terminal airways of the lung. (ff) "Respirator" means any device designed to provide the wearer with respiratory protection against inhala tion of a hazardous atmosphere. (gg) "Smoke" means the products of incomplete combustion of organic sub stances In the form of solid and liquid particles and gaseous products m air. usually of sufficient concentration to per ceptibility obscure vision. (hh) "Vapor" means the gaseous state of a substance that is solid or liquid at ordinary temperature and pressure. 11.4 Incorporation liy reference. In accordance with 5 U.S.C. 552(a) (1 >, 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 foi 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 trict and Subdistrict Office. Subpart B--Applieafion-for Approval 11.10 Application procedure-. (ii> Inspection. e:-. i:r,i'. Mid ' mg lending to the npprcv.d of tvg-v of respirators class'fieri ir. Su-ra.rt F 'A thi3 part shall be undertaker, by fho 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 ;o Approval and Testing, Bureau of Mines, 4800 Forbes Avenue, Pittsburgh, PA FFOERAl REGISTER, VOl. 37, NO. S9--SATURDAY1, MARCH 25, 1972 rAPrn kin nnnnfina 6248 RULES AND REGULATIONS 15213, and shall be accompanied by a check, bank draft, or money order In the amount specified In Subpart C of this part payable to the order of tSe U.S. Bureau of Mines. (c) Except as provided In 9 11.64. the examination, inspection, and testing of oil respirators shall be conducted by Ap proval and Testing, Bureau of Mines, Pittsburgh, Pa. 15213. (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 for 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, 11.11 Contents of application. (a) Each application for approval shall contain a complete written description of the respirator for which approval is re quested together with drawings and spec ifications (and lists thereof) showing full details of construction of the respi rator and Of the materials used. Draw ings and specifications (and lists thereof) shall be submitted >n triplicate. (b) 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, (c) Each application for approval shall contain a proposed plan for quality con trol which meets the minimum require ments 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 9 11.64, and shall include the results of such tests. (e> Each application for approval shall contain a statement that the respirator and component parts submitted for ap proval are either (1) prototypes, or (2) made on regular production tooling, with no operation included which will not be incorporated in regular production processing. 3 11.12 Delivery of respirator* by appli cant; requirement!. (a) Each applicant shall, when an ap plication is filed pursuant to i 11.10, be advised by the Bureau of the total number of respirators and component 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, Pittsburrh. Pa. 15213. i r: ntcTS and component parts ".i'::.-.- . J for approval' must be made from v.aterials specified in the apphea- < a - One completely assembled respiral w ../..rnved under the provisions of part may be retained by the Bu re: u os a laboratory exhibit, the remainin * respirators may be returned to the a"*;' 'ant at hi; own expense, upon writ ten request within 30 days after notice of approval. If no such request Is made, the respirators will be disposed of by the Bureau in such manner ns it deems appropriate. (e) Where a respirator fails 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 cant at his own expense, upon written request within 30 days after notice of disapproval. If no such request is made, the respirators will be disposed of by the Bureau in such manner as it deems appropriate. Subpart C--Fees 11.20 Examination, inspection and testing of comptete respirator assem blies; foes- Except as provided in $ 11.22, the fol lowing fees shall be charged by the Bureau for the examination, inspection and testing of complete respirator assemblies: (a) Self-contained breathing ap paratus-- (1) Entry and escape, 1 hour or mors____ ________.......... 13.600 (3) Entry and escape, less than ) hour _____ ....___ _____ -- 3,760 (3) Escape only 3,000 (b) Oas masks, Including pesti cide gas masks-- (1) Single hazard___ ........... 1.100 (3) Type H_____ 4.100 (c) SuppUed-alr respirators______ 750 (d) Dust, fuma and mist respi rators-- (1) Single particulate hazard hav ing an Air Contamination Level more than 0.03 mg./ m.' or 3 mlUlon particles per cubic foot_____............ 500 (3) Combination particulate haz ards having an Air Contami nation Lsvst mare than 0.05 mg/o.' or 3 million par ticles per cubic foot------------- 750 (3) Particulate hazards having an Air Contamination Lovel less than 0.05 mg/n.1 or 3 million partlclea per cubic foot, radon daughters____ 1,330 (4) Ail dusts, fumes anti mists.. 3,000 (e) rthemie^i cartrldga respira tors 1.160 (f) Paint spray respirators______ 1.600 (g) Pestlelds respirators__________ 1.600 11.21 Examination, inspection and testing of respirator components or subassemblies; fees. 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 1460 (b) Canl.tera ........................ (cl C-.rtriti.tes______________________ (d) F-.lcors............................................... ie) Hoses ___________________________ (f) Blowers _________________________ (g) Harnesses 100 SOO 000 OJ) 250 250 5 11.22 l*nli-icd fora; additional fees; payment l>y applicant prior to ap proval. (ft) Applications for the examination. Inspection and testing of ccmolote respirator assemblies which are not listed in 5 11.20, or for the examination, in spection, and testing of respirator com ponents or subassemblies which are not listed in 9 11.21, shall be accompanied by the following deposits: (1) Complete respirator assem bly ........... .......... ....................... (2) Each individual component or subassembly .....__________ Si. 500 SCO <b) The Bureau reserves the 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 ther 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. (c) The fees charged for the exami nation, inspection, and testing of un listed respirator assemblies, unlisted in dividual respirator components or subassemblies, and for the additional exam ination, inspection, and testing of listed respirator assemblies and components or subassemblies shall be at the rate of *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 shal advise the applicant in writing of the total cost 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. Subport D--Approval and Disapproval 11.30 Certificates of approval; .-cope of approval. (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 alii not issue certificates of approval for any respirator component or for any r.. t.pirator subassembly. (c) The Bureau ar.d the shall not issue an informal notification of approval. However, if the apuiication for approval, submitted ir. accordancv with 9 11.11, states that the submitted respirator and component parts are only prototypes, the Bureau will examine, in spect, and test such respirator and com poneot parts in accordance with the FEOERAl REGISTER VOl. 37, NO. 5?--SATURDAY, MARCH 2S, 1971 CAPCO KIM OOOnfiOP RULES AND REGULATIONS 6219 provisions at this Part H. If, upon com pletion of such examinations, inspections and tests, It is found that the prototype meets the minimum requirements set forth In this part, the Bureau ftnd the Institute may inform the applicant, in writing, of the results of the examina tions, Inspections, and tests, and may require him to resubmit respirators and 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. 11.31 Certificates of approval; con- tents. (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 5 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. fell 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 ! 11.33. (e) No 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 stature or regulation. (f) Each certificate of approval shall also contain the approved quality control plan as specified in i 11.43. 11.32 Notice of disapproval. (a) If, upon the completion of the exinunat.ions. Inspections, and tests reuured to be conducted in accordance '= provisions of this part. It is fo::.'. i i the respirator decs not meet ti.e rv.!:'-:::um requirements set forth in lius pari, the Bureau and the Institute shall issue a written notice of disapproval to the applicant. (b) Each notice of disapproval shall be accompanied by all pertinent data or findings with respect to the defects of the respirator for which approval was sought with a view to the possible correction of any such defects. (c) The Bureau and the Institute shall not disclose, except to the applicant or as required by statute or regulation, any data, findings, or other information with respect to`any respirator for which a notice of disappovai is Issued. 11.33 Approval labels and markings; approval of contents; use. (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 U.S. 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. (c> 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 Label type Location 5e!fenr.f u*:M Entire........., rfarnc fesemhly brev.hiri: :pna* -- and cnnl,tcr ratus. (where Applicable). Om mast........... Entire.... . Mask container end canister. SuppIM-.Ur r<"pi- Entire....... .. Respirator container rjtor. or mtruct!oa cord. Dust, fume, and Entire.... Respirator container mi<t respirator. and (titer con* miner. Abbrerl- Filters. ated. Chemical-cartridge Entire......... Respirator con* respirator, includ* tamer, cartridge Ing point spray container, and respirator. Alter container* (where appli* cable). Abbretl* Cartridges and ftl* ated. ten and Alter containers. Pesticide respirator. Entire......... Respirator eon* talner. and car* tridge and Alter containers. Abhreel* Cartridges and ated. biters* (f) The use of any Bureau and Insti tute approval label obligates the appli cant tt- viavn it Is issued to maintain or came to ba uauifaiavd 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 the certi ficate of approval is based. (g) Each respirator, respirator com ponent, and respirator container shall, as required by the Bureau and the Institute to assure quality control and proper use of the respirator, be labeled distinctly to show the name of the applicant, and the name and letters or numbers by which the respirator or respirator component is designated for trade purposes, and the lot number, serial number, or approxi mate date of manufacture. 11.34 Revocation of certificates 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. 11.33 Changes or modification of ap proved respirators; issuance of mod ification 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 modifi-uuon of the existing certificate to cover any proposed change. (c> The application shaii be accom panied by appropriate drawings and specifications, and by a proposed quality 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 wall be required. (aj Tlie 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. (f) If the 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 approval labels. 11.3(1 Delivery of changed nr modified approved rr-pirntor. An approved rw-pualoi- ... .. .. formal certificate of mcdificati.:'. been issued shall be deli.trod, w-.;h proper markings and containers, by the applicant to the Bureau of Mines, Ap proval and Testing, 4800 Forbes Avenue. Pittsburgh. PA 15213, as soon as it Is commercially produced. FcOERAl REGISTER, VOL U7. NO. S9--SATURDAY, MARCH 25, 1972 CAPCO KIN 0000610 6230 RULES AND REGULATIONS Sybpart E--Qualify Control 11.10 Quality control plans, filing re quirements. 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 wliich ap proval is sought. 11.11 Quality control plans; contents. (a) Each quality control plan shall contain provisions for the management of quality, including: (1) Requirements for the production of quality data and the use of quality control records: <2> control of engineering drawings, docu mentations. and changes; (3) control and calibration of measuring and test equipment: (4) control of purchased material to Include incoming inspection; (S) lot identification, control of proc esses. manufacturing, .fabrication, and assembly work conducted in the appli cant's plant; (6) audit of 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 accorr'rrce with procedures set forth in Military Standard MIL-STD-105D, 'S.-.nipilng Procedures and Tables for Inr.p.v::c'n 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 in-process inspection shall be sufficient to ensure control of product quality through the manufac turing cycle. fc) 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 .......i-'e any respiratory protection. a :'n?.t reduces protection and i; r. j-' -tctab'.e by the user: *3' .: :.-t B. A defect, other than Ma jor A or cinical, that is likely to result in rvi'Cvd respiratory protection, and is i-ctib'.e by the user: and Ci Minor. A defect that is not likely t.i materially reduce the usability of the re.p.rator for its intended purpose, or a defect that is a departure from estab lished standards and has little bearing on the effective use or operation of the respirator, (e) The quality control 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 items shall be rejected. (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; (2) Major B. 2.5 percent; and (3) Minor. 4.0 percent. (h) Except as provided in paragraph (i) of this section. Inspection level n as described in MIL-STD-10SD, or inspec tion level IV as described in MIL-STD414, shall be used for major and minor characteristics and 100 percent inspec tion for critical characteristics. <i> Subject to the approval of the 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 lewer level of in spection than that specified in para graph (h) of this section. 11.(2 Proposed quality control plans; approval liy the Bureau and the lu-ti. 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 wliich 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 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 liy the Bureau and the Institute; rev ocation of approval. (a) The applicant shall keep quality co'itrol ir.jf.jclion records sufficient to carry out the procedures required in MIL-STD-105D or MIL-STD-ill, or an approved equivalent sampling procedure. (b) The Bureau and the Institute re serve the right to have their representa tives inspect the applicant's quality con trol test methods, equipmen;, and rec ords, and to interview any employee or agent of the applicant in regard to quali ty control test methods, equipment, and records. (c) The Bureau and the Institute re serve the right to jointly revoke, for cause, any certificate of approval wher 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 Respirators; Scope of Approval; At mospheric Hazards; Service Time 11.50 Types of respirators to be ap. proved; scope of approval. Approvals shall be Issued for the tyoes of respirators which have been classified pursuant to this Subpart F, have been Inspected, examined and tested by the Bureau in accordance with the provi sions of Subparts O through M of this part, and have been found to provide respiratory protection for fixed periods of time against the hazards specified in such approval. 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. Cb) Escape only. Respirators designed and approved for use only during escape from a hazardous atmosphere. 11.52 Re-pir.ilory iiareril-; ri.i--ifiration. 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) Gases and vapors; (c) Particles. Including dusts, fumes and mists; and (d) Pesticides. 11.53 Service lime; classification. () 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; () Thirty minutes; (7) Fifteen minutes; (8) Ten minutes; (9) Fiveminutes; (10) Three minutes. (b> Other service times may be pre scribed by the Bureau Mid the In.*i"::i. Subpart G--General Construction and Performance Requirements 11.60 Con-trurtinn and perfurmnne requirement:*; general. (a) The Bureau and the Institute shall issue approvals for the types of respira tors described in Subparts H through M FEDERAL REGISTER, VOl. 37, NO. 59--SATURDAY, MARCH 25, 1972 rAPr.n kin nnnnfiii RULES AND REGULATIONS 6251 of this pan which have met the mini mum roquirements set forth for such respirators In this Part U. tb) In addition to the types ofrespira- tors specified In Subparts H through M, the Bureau and the Institute shall issue approvals for other respiratory protec tive devices not specifically described in this Part 11 subject to such additional requirements as may be Imposed in ac cordance with 511.63(c). 11.61 General coni-uction require- merits* (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 sincle-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, Subciv;o:er D of this chapter (Bureau of Mines Schedule 2G). 11.62 Component part*: minimum rc- (julrcment*. (a) The component parts of each respirator shall be: <1) Designed, constructed, and fitted to insure against creation of any hazard to the wearer: 12) 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 requirements; general. (a) Each respirator and respirator component shall when tested by the applicant and by the Bureau, meet the applicable requirements set forth in Sub parts 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. f !he ir.divid'i.'.l -viniior types i'.-.-.ve been combined shall, as : meet the m.i..i.v.um require' .r.is for such respira'.vrs set forth in Subpa. ts H through M of t?ils part, and ' Cvmbinatlon respirators, except as -tied In 5 11.70(b)(2). will be classifva the type of respirator in the com bination which provides the least pro tection to tiie user. (c) In addition to the minimum re quirements set forth In Subparts H tlirough M of tills 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. 1 1.64 Pretesting by applicant; ap. proval of test methods iiy 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 the severity of those prescribed in this part. (b> 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 ot' 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. 11.63 Conduct jf examinations, in spections, and tests by the Bureuu 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 or respirator component prior to test ing or in the operation of such equip ment diuin" testing. ci G.i'.y Bureau end Intitule Ti ne'.. pe.rcns assisting the Bure.-u pur suant to paragraph (b) of this section, end 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 prior 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 5 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 npp.i. rntus; 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 ot 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: (1) Compressed oxygen; or (ii) Chemical oxygen: or (iii) 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 tu the immediate environment is p-iriii'-p during la- rljn and negative n.:.-:ng.......I (ii; rressu'c-dcrr.t.r.u-type c: z.-.-z:zs. An apparatus in which the pressure in side the facepiece in relation to the im mediate environment Is positive curing both Inhalation and exhalation. (b) The following respirators may be classified as designed and approved for No. so--Pt. n- FEDERAl REGISTER, VOL. 37, NO. 59--SATUROAY, MARCH 25, 1972 CAPCO KIN 0000612 6252 RULES AND REGULATIONS use during emergency entry Into a haz ardous atmosphere: A combination respi rator wlxlch Includes a self-contained breathing apparatus and a Type "C" or Type "CE" supplied air respirator, where (l) the self-contained breathing appara tus is classified for 3-, 5-, or 10-minute service time and the air line supply is used during entry, or (2) the selfcontained breathing apparatus Is classi fied for 15 minutes or longer service time and not more than 20 percent of the rated capacity of the air supply is used during entry. (c) Self-contained breathing appara tus classified for less than 1 hour serv ice time will not be approved for use during underground mine rescue and recovery operations except as auxil iary equipment. <d> Self-contained breathing appara tus classified for less than 30 minutes' service time will not be approved for use as auxiliary equipment during un derground mine rescue and recovery operations. 11.71 Self-contained breathing appara tus ; required components. () Each self-contained breathing apparatus described in i 11.70 shall, where its design requires, contain, the following component parts: (1) Facepiece or mouthpiece, and nosecllp; (2) Respirable breathing gas con tainer: (3) Supply of respirable breathing gas: (41 Gas pressure or liquid level gages: (5) Timer: () Remaining service life indicator or warning device; (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 meet the minimum construction require ments set forth in Subpart Q of this part. 11.72 Breathing tubes; minimum requirements* (a) Flexible breathing tubes used In conjunction with breathing apparatus shall be designed and constructed to prevent: (1) Restriction of free head move ment; (2) Disturbance of the fit of face pieces and mouthpieces; (3) Interference with the wearer's ac tivities; and. (4i Shutoff of airflow due to kinking, or from chin or arm pressure. ' : '.7 : Il.irni'H1,; in-tali.itbm r.tiil r*.*i- minimum requirement-. : '.inch apparatus shall, where r.ecrit. be equipped with a suitable harne-s designed and constructed to hold i:;c components of the apparatus in po; against the wearer's body. b) Harnesses shall be designed and constructed to permit easy removal and i-:,:. .-.-ittcnc of apparatus parts, and, where applicable, provide for holding a full facepiece in the ready position when not in use. 11.7-1 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 nation of the respirator it contains, and all appropriate approval labels. (b) Containers supplied by the appli cant for. carrying or storing selfcontained breathing apparatus will be inspected, examined, and tested as com ponents of the respirator for which ap proval is sought. (c) Containers for self-contained breathing apparatus shall be designed and constructed to permit easy removal of the apparatus. 11.75 Tlalf-mask facepieces, full face, pieces, mouthpieces; 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 providing one facepiece size which will fit varying facial shapes and sizes. (b) Full facepieces shall provide for ths optional use of corrective spectacles or lenses which shall not reduce the respiratory protective qualities of the apparatus. (c) Apparatus with mouthpieces shall be equipped with noseclips which are securely attached to the mouthpiece or apparatus and provide an airtight seal. (d> Facepieces shall be designed to prevent eyepiece, spectacle, and lens fogging. 11.76 Facepieces; eyepieces; mini mum requirements. (a) Facepieces shall be designed and constructed to provide adequate vision which is not distorted by the eyepiece. (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. This Federal Specification is available from the Government Printing Offlce or the General Services Administration. 11.77 Inhalation and exhalation valves; minimum requirements. (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 influf-ard (2) Designed and constructed to pre vent inward leakage of contaminated air. 11.78 lb-ad lia-iic--c-: uiituiuuni re quirement*. (a) Facepieces shall be equipped with adjustable and replaceable head har nesses designed and constructed to pro vide adequate tension during suspension and an even distribution of pressure over the entire area in contact w'th the face (b) Mouthpieces shall be equippe where applicable, with adjustable an,, replaceable harnesses designed and con structed to hold the mouthpiece in place. 11.79 Breathing gas; minimum requirements. (a) Breathing gas used to supply ap paratus shall be respirable and contain no less than 19.5 (dry atmosphere) volume percent of oxygen. (b) Oxygen, including liquid oxygen, shall meet the minimum requirements for medical or breathing oxygen set forth in the UB. Pharmacopeia. ,(c) Compressed, gaseous breathing air shall meet the applicable minimum grade requirements for Type I gaseous air set forth in the Compressed Gas As sociation Commodity Specification for Air, G-7.1 (Grade D or higher quality). (d) Compressed, liquefied breathing 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). 11.79--1 Interchangeability of oxygen and air prohibited. Approvals shall not be Issued by the Bureau and the Institute for any appa ratus. combination of respirator assembliesv or any apparatus or respirator com ponent which Is designed or constructed to permit the Interchangeable use oxygen and air. 11.80 Compressed breathing gas and liquified breathing gas containers; minimum requirements. (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. (b) Such containers shall be perma 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) Containers normally removed from apparatus for refilling shall be equipped with a dial Indicating gage which shows the pressure in the con tainer. (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 Inset Connections, E57.1 (1D55>. oh** able from American National '"ar.-ltr is Institute, Inc.. 1409 Broadway, York. NY 10018. 11.81 Ga* prc?ure gage*; minium requirement*. (a) Gus pressure gages employed on compressed breathing gas containers shall be calibrated iti pounds per square inch. FSOERAt REGISTER, VCl. 37, NO. 59--SATURDAY, MARCH 25, 1972 nAPno kin nnnofiis RULES AND REGULATIONS 6253 fb) Liquid-level gages shall be cali brated in fractions of total container capacity, or lr. unite of liquid volume. (c) Gas pressure gages other than tltose specified In paragraphs (a) and (b) of tids section shall be calibrated in: (1) Pounds per square inch, or t2) In fractions of total container capacity, or 13) Both in pounds per square inch inch and fractions of total container capacity. (d> (1> 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) Tile full scale graduation of dialindicating gages shall not exceed 100 percent of the maximum rated cylinder pressures specified for the container in applicable Department of Transportation specifications or permits. ie> (1) Stem-type gages shall be 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. (3) Stem gaga readings shall not vary from true readings by more than onesixteenth inch per inch of stem travel. (f) The loss of gas through a broken gage or severed gage connection shall not exceed "0 liters per minute when the cylinder pressure is 6.900 fcX.-'in/ '1.000 pounds per square inch gr.ee> or when the lir.'ud level is at one-half. (?) Where gages are connected to the apr '.ratus through a gage iine. the gage and line shall be capable of being iso lated from tho apparatus except where the failure of the gage or line would not impair the performance or service life of th? apparatus. (h) Oxygen piessure gages shall have the words, "Oxygen" and "Use No Oil," marked prominently on the gage. f i) <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 p visible gage. S 11 .2*2 Timer*: etapcd lime indicator*: - .. ..\i<*c life min- *.i: y:*i ' la: :>;-.'d time indicators shall be p.o* :.:vd .v.r apparatus with a chemical o:cv;::i source, except: l Apparatus used for escape only; or. i?) Liquefied breathing gas apparatus equipped with gages visible to the wearer which Indicate the remaining liquid con tent in the container. ib) The timer or other Indicator shall be accurately calibrated In minutes of remaining service life. (c) Timers shall be readable by sight and by touch during use by the wearer. (d) Timers shall be equipped with au tomatically preset alarms which will warn 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 com pressed gas self-contained breathing ap paratus, except apparatus used for escape only, and shall operate automat ically without preadjustment by the wearer. (O Each remaining service-life Indi cator or warning device shall give an alarm when the remaining service life of the apparatus is reduced within a range of 20 to 25 percent of its rated service time. 11.03 Hand-operated valves; minimum requirements. (a) Hand-operated valves shall be de signed and constructed to prevent re moval of the stem from the valve body during normal usage to Insure against a sudden release of the full pressure of the container when the valve is opened. ib) Valves shall be designed or posi tioned to prevent accidental opening and closing, and damage from external forces. ic' Valves operated during use of the apparatus shall be Installed in locations where they can be readily adjusted by the wearer. id> Ma.n-llne valves, designed and 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 will not affect performance. <e> Hand-operated bypass systems designed and constructed to permit the 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. (i) 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 r?qu::*''rents: 1> The relief valve or s/stem shall operate automatically wlic-n the pressure in the breathing circuit on the inhala tion side of the breathing bag reaches 13 mm. lone-half inch) water-column height of pressure above the minimum pressure required to fill the breathing bag. within the breathing resistance re quirements for the apparatus. (2) The relief valve or system shall be designed to prevent external atmos pheres from entering the breathing circuit. <3) The relief valve or system shall be designed to permit manual overriding for test purposes and la the event of a failure in the valve or system. 11.84 Breathing bags; minimum recruirexnenU* (a) Breathing bags shall have suffi cient volume to prevent gas waste during exhalation and to provide an adequate reserve for inhalation. (b) Breathing bags shall be con structed of materials which are flexible and resistant to gasoline vapors. (c> Breathing bags shall be Installed in a location which will protect them from damage- or collapse by external forces, except on apparatus classified for escape only. 11.85 St'If^onlained breathing oppa* ratus; performance requirement*; general. Self-contained breathing apparatus and the individual components of each such device shall as applicable meet the requirements speoified in S3 11.85-1 through 11.85-29. 11.85--1 Component parts exposed lo oxygen pressures; minimum require ments. Each applicant shall certify that the materials employed in the construction of component parts exposed to oxygen pressures above atmospheric pressure are safe and compatible for their intended use. 11.85--2 Compressed gas filter-: mini, mum requirements. All self-contained breathing apparatus using compressed gas shall have a filter downstream of the gas source to effec tively remove particles from the gas stream. 11.85--3 Breathing bag test. () Breathing bags will be tested in an air atmosphere saturated with gasoline vapor at room temperature (2V-30* C./ 75'-S5* 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./min. will be used.* (d) The air within the bag's) shall not contain more than 100 parts per mil lion of p.asolin" v r-.or r.i th-? *1 * e test. 'Silverman, L.. a. Lee, T. P It:. l. Amory, and A. R. Yancey. Fundamental Factors tn Design of Protective Equipment. O-S.n.D. Report No. 5732, Issued Apr. 1. ir**,a. The dimensions of the breathing machine cam axe available from the Dureau upon request. FEDERAL REGISTER, VOl. 37, NO. 59--SATUR0AY. MARCH 2S, 1972 rAPnn KIN 0000614 6254 RULES AND REGULATIONS 8 11.37--4 Weight requirement. {:. he completely assembled and full;- trged apparatus shall not weigh more ..an 16 kg. (35 pounds) T however, w here the weight decreases by more than 25 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 13 kg. (40 pounds). (b> Where an apparatus employs equipment which contributes materially to the wearer's comfort, e.g., a cooling 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. 11.83--S Breathing resistance test; in halation. (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 11.85-3. (b> The inhalation resistance of open- circuit apparatus shall not exceed 32 mm. (1.25 inch) water-column height (at a Sow rate of 120 liters per minute). (c) The Inhalation resistance of closed-circuit apparatus shall not ex ceed the difference between exhalation resistance (5ll.85-6(e)> and 10 cm. (4 Inches) water-column height. 11.83--6 Breathing resistance test; ex halation. (a) Resistance to exhalation airflow will be measured In the facepiece or mouthpiece of open-circuit apparatus with air flowing at a continuous rate of 85 liters per minute. (b>. The exhalation resistance of de mand apparatus shall not exceed 25 mm. (1 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 mm. (2 inches) water.column height. (d) The static pressure (at zero flow) in the facepiece shall not exceed 38 mm. (1.5 inches) 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 $ 11.85-3, and the exhalation resistance shall not exceed 51 - mm. (2 inches) water-column height. 11.83--7 Exhalation valve leakage teat. (a) Dry exhalation valves and valve seats will be subjected to a suction of 25 mm. U 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. . ( '"-2 G.l- flow I;.-;: , . i .-tu-. :i.:- (.* A rtatic-flow test will be perfc r::ied on all open-circuit apparatus. fb'i The flow from the apparatus shall Vs rie.;i?r than 200 liters per minute .-l:cn th.: pressure in the facepiece of demand-apparatus is lowered by 51 mm. (2 inches) water-column height when full container pressure Ls applied. (c) Where pressure demand appara tus are tested, the flow will be measured at zero gage pressure in 'he facepiece. (d) Where apparatus with compressed-breathlng-gas containers are tested,' the flow test shall also be made with 3,450 kN/m.' (500 ps.l.g.) container pressure applied. 11.83-9 Cns flow test; closed-circuit apparatus* (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 entire rated service time of the apparatus. (b> Where constant flow is used in conjunction with demand flow, the con stant flow shall be greater than 1.5 liters per minute for the entire rated service time. (e) AU demand-flow devices shall pro vide at least 30 liters of oxygen per minute when in the fully open position. 11.85--10 Service time test; open-cir cuit apparatus. (a) Service time will be measured with a breathing machine as described in } 11.85-3. (b) The open-circuit apparatus will be classified according to the length of time it supplies air or oxygen to the breathing machine. (c> The service time obtained on this test will be used to classify the opencircuit apparatus in accordance with 3 11.53. 11.83--11 Service time tct; closed-circuit apparatus* (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. 11.83--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 ram will be used. (*' The apparatus will hs tested at a temperature of 2V2* C. (C0'-5` F.).5 5 Kloos. E. J., and J. Larr.onic.i, A -MachlcoTest Method for Measuring Carbon Dioxide in the Inspired Air of Self-Contained Breathing Apparatus. Bureau of Mines Report of In vestigations 6365, 1960. 11 pp. (5) A concentration of 5 percent carbon dioxide in air will be exhaled into the facepiece. (b> .Closed-circuit apparatus: (1) The concentration of carbon d: ide in inspired gas in closed-circuu, 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 paragraphs (a) and (b) of tills 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 tion portton of the breathing cycle shall not exceed the following limits: Where the service Maximum c.llotcable average concentration if carbon dioxide in inspired air, time 1st 'sreent by volume Not more than 30 minutes.___________ 1 hour 2.0 a hours i. s 3 hours... ... ... ... i.o 4 hours i. o 2. S <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 will be taken from the closed-circuit ap paratus at a point downstream of the carbon dioxide sorbent, and they sV not contain more than 0.5 percent bon dioxide at any time. 11.83-13 Tests 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 co 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 bo 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, akemate 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 Vi inches) high at s. rate of 30 cycles per minute. (e) (1) The apparatus shall function satisfactorily at the specified minimum trm.perai.ure on duplicate tests. (2) The wearsr shall have s".:Vv:cr.`. unobscured vision to perform the work. (3) The wearer shall not e:rpericr.ce undue discomfort because of airflow re striction or other physical or chetnis changes In the cocration of the apparatus. R95BAL RcGIJTSR, VOl. 37, NO. 5?--SATURDAY, MARCH 25, 1972 CAPCO KIN 0000615 RULES AND REGULATIONS 6255 ([) Auxiliary low-temperature parts 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. U.85-14 Man tc-Hl tcstinj? condi tions; general requirements. (a) The man tests described in Tables 1. 2, 3. and 4 represent the workload per formed in the mining, mineral, or allied industries by a person wearing the appa ratus tested. ib) 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. cd) 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 wall be repeated. 11.85--15 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; f3) Evaluate the apparatus under dif ferent types of work and physical ori entation; and (li Provide information on the op erating and breathing characteristics of the apparatus during actual use. 11.05--15 Man tc-t 5; requirements. (a) Test 5 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 I 11.79(a) of this part, and the maximum allowable average concentration of carbon dioxide specified in 5 11.85-12(0. (d) One sample of in.-piration will be taken in the case of 3-. 5-. and 10-minute apparatus. 11.85--17 Man tv.t f>: i-rquirement*. 'a) Man test 6 will be conducted with respect to liquefied breathing gas appara tus only. i b i This test will be conducted to eval uate operation of the apparatus in other than vertical positions. <c> The wearer will lie 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 charce of liquefied breathing a as. id) Tiie 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. 11.85--18 Man tc-l:.; pcrfurm.int'e requirfnuMit*. (a) The apparatus shal1 satisfy the respiratory requirements of the rear-r 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 duiing testing is 24*ri6' C. (VS'^lO' F.). 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.); \\"li>*l< * C Vj'rt* ,(f* of n| (until* i* - Wisrei'rH* upevi*rcnt hUuKmf.uidvidtyuair is-- M itlr.tum ft SMH n./t ' 'VUf 4 <: s.r tv--1- F. C. lu.ur w 1. <t ..... J4u<ur int hour... 1 to 2 Imurs.......... Shouts. ... .. 4 hours.. (Mfl V0*--5h0O MIk--U .V0M-4.0V) ik-Jii 40*100 1r2\3 !W Uj ` 1*0 IP) t n.o 1'iA ` ?3 t * 1 3j ` When* ivreent mhtlve humidity Is 4Mno mi .tppa* rUu* is tU-Miru"! for ^cipe only, th'-sr mulnurn '*r* will be inc:<*a.vd by S' C.: I K 11.83--19 Cas tightnC"* tc$t; minimum requirement*. (a> Each apparatus will be tested for tightness by persons wearing it in or. atmosphere of 1,000 p.p.m. is-.amyl 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. TaRi.e 1.- *. wn Skmckvce or .Jfrif activities for Test t, lx Mivctes CF R Pirt 11. 5u* p rt II, l U.^4, et srq.) Activity Srr.lnu*.. s 4 minutes Service time-- 10 minutes 14 minutes 30 minutes 44 minute* Sampling and readings. 222 Walks at 4.8 km. (3 miles) p*r bour.............................. 3 Sampling and readings..................................... ........... ................... $ 31 4 52 12 2 Walls at 4.8 km. (3 miles) per hour.................................................... 3 5 8 12 Sampling and readinp...................... ............................................... Walks at 4.8 km. (3 miles) per hoar........--................................ Sampling and readings....................................................................... 2 2 2 6 2 13 22 l bour 3. and 4 ; 2 Preform 1 hour test 2. 3. or 4 ttmes resr-atrely. 18 2 18 2 16 2 FEDERAL REGISTER. VOL 37. NO. 59--SATURDAY. MARCH 25, 1972 CAPCO KIN 0000616 6236 Activity or- *c-v-t. RULES AND REGULATIONS TlBL* 2. --DURATION AND SEQUENCE Of SfECITtC ACTITITIM TOR TEST 2, W MINUTES (30CPR Part tl. Subpart H, | U.S5, at seq.) 3 minute* 6 minutes 10 minute Service Time-- 13 minutes 30 minutes 46 minutes 1 hour 2,3 and 4 sours minutes. minutes. minutes. 3 times ln6 minutes. 4 times In 8 minutes. Carrl*-i 33 kg. (SO pound) weight over................... overcast. Walks At 4.8 km. (3 mites) per hour............................ ...................... walks at 4 4 km. (3 miles) per hour. a minutes. 3 times In 6 minutes. 4 times in 8 minutes. 1.................. .. 3................... . 3.......... ........ 5 times In lo minutes. 4 6 times In 10 minutes. activities once. 1 Total t-?t *'.m* for T.'jt 2 for 2-hour, 3-hour. *nd 4-hour sop*raCU9 Is 2 hours. * Tre.t ir'lil :* be helmed 15'* from vertical nd operated at espied of 1 foot per second. TaSLC 3.--DURATION AND SEQUENCE Of SfECTTIC ACTIVITIES TOR TEST 3, Isf MINUTES (30 CFR Part tl, Subpart H, | 11.85, et ssq.)* 3 Activity 3 minutes Sampling and readings. Runs at 3.7 km. (4 miles) per hour...... 1.. PuLt .v kg. (45 pound) weight to 5 feet........ LI-*? on sld*................... ........................ Vi, L>5 or. byk...........................................Vi. Crw;$ o:i hands and knees......... . 1., Sasr.ji.irc -.r.rt ti-vhrgs................................... Wei'st v. > km. `3 miles) Per hour. Tulls 3-/ U5 pound) weight to 6 feet. 8erapC::g and readings......................... Walks at 4 8 km. (3 miles) per hour..... Lies on side................... ...................... Lies on back..................... .................. Sampling and readings......................... 3 minutes 1........... 15 times la l 1. minute. 11.. 10 minutes Service time-- t3 minutes 30 minutes 45 minutes l hour 2,3 and t hours > ii.. lt.. i. 30 times in 2 minutes. 1. 2........... 1.............. 1.............. 30 times la 2 222...m......i...n...u...t...e...s.......... 1. 221.............................. 33 tiroes In 2 minutes. 3222................................................... 21........................ 60 times In 6 minutes. 3. 2. 22.................... 1.............. 30 times in 2 minutes. 4.................. 322.............................................. 1.............. 3.................. 60 times ta 6 suniites. 4. 22.. 2........... 31............................... 60 times (n 6 6..m..i.n.u..t.e.s..... 223..................................... t.................. 10................ 60 times In 6 21.0m....i..n..u..t..e..s..... 4.................. 21........................ Parform test So. 3 for I hr. appara tus; then perform test So. 1 for l hour apparatus. t Tots! test tima (or Test 3 tor 2-hour, 3-hour, and 4-bour apparatus is 2 hours. FEDERAL REGISTER. VOL 37. NO. 59--SATUROAY, MARCH 25, 1972 CAPCO KIN 0000617 RULES AND REGULATIONS 6257 Tadus 4.--Dgjutk>n and Scqu*nc* of Sfecotc Acnrmu rot Tmt a, in Mlsctu (30 CPU Pari 11, Sabpart II, | u., Acttvttr Sarrlo* tlmw-- 3 siiaatM 3 mlnuia* 10 mJauUj 13 mlnutas 30 mtnuts 43 tulnuuj lbour 3 boon 3 boon aad f^Adlop.................... -..................................... 2. 2........... . 2. 2.............. Perform tost "Wiat Mtm. fnii*i) par hour......................................................... 1. 2....... 2, No. I (or 30 2.............. minute apparatus; then perform ('.m.iij r-rtical trciulmiU 1 (or * ............. 1............... 1.............. 1. 1............t. test No. 4 1............... (nr l-hour . 'imval'-nt). apparatus; tt'.tllc* at l.S km, (3 milos) p*r hour.....................1................. 1.............. 1. 2 ............2. then perform 2.............. test No. I for 30-raln- ute appera* tus. Tulls .-.) kr, (45 pound) weight to 5................. 30 time* 30 times 30 times 60 times 60 times 60 times .......................... ft l, to 2 in 2 in 2 ' in 6 in 6 in 6 minutes. t $ kia. (3 miles) per hour......................................... minutes. 1............... minutes. 1............ minutes, minutes. minutes. 3......................................... C trri* .`3 kg. t50 (>ounu) wij*nt ....................................................... 1 tuns in 1 lime m 2 times in 4 times In ......................... o'*`> r ov-roait. 5 iriphnz ant readings..................... u i;'<% a'. *AWn. <3miW) per hour... ni,,,v.v.: km. ft>mtk<) p r hour... ............. 1............ 1......... l min* 1 min* 3 aud 8 min uts. it te. 2 utes. 2 2.u.t.e.s..................... zYYYYYYYYY. tYYYYYYYY.. 4......................................... t' ,m. (50 pound) weight over ................................... I time In I limn in 2timjln 4tim**sin 6 times in vv-rCAit. 1 min l min* 3 min* 6 min* 9 min ute. uto. UP*. ute*. utes. pijll, X) kg. (15 pound) weight to 5 15 times ................................ 15 tim.<s 60 times 30 times 36 times ft el. in l m l in 5 In 2 in 3 5 i. :j I1.15 .uid readings W.i.k * .it 4 s km. (3 miles) jvr hour IMhll.t.30 kg. (15 pound) weight to 5 minute. minute. .2...m....i.n...u..t.e...s.22.....m...i..n..u..t..e..s... minutes. ................. 60 times W time* in 5 in 5 minutes. minutes. C irrv? 30 ke (45 pound) weight and ..................3................. 3............... u us at 4.3 km. \Z miles) p*r hour. Sjmpjn'g and readings....................... 2. Perform test No. I for l* hour appara tus: then per form test No. 4 for l* hour appara tus: then per* form test No. l for l-hour apparatus. Perform test No. I fgr l* hour appara tus: init per* form test No. 4 for l* hour aprnrv tus: then per form te>t No. I for 1hour appara tus twiew (i e.. two or.e-hgur testa). i Tr* idmiU shall be melim-d 15* from vortical and operated t a -P* 1 of 30 cm. (I foot) p**r second. Subpart 1--Gas Masks 11.90 Gus ntu.ks; devrription. Maximum use concentration, per cent by volume ia) 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 hazardous atmos pheres containing adequate oxygen to support life are described as follows: U) 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 acid 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 gat mask. A gas mask which consists of a full facepiece, a can ister which is usually attached to the facepiece, and associated connections. (4) Escape gas mask. A gas mask de signed for use during escape only from hazardous .atmospheres which consists m ,if-nssk facepiece or mouthpiece, a .-.(.r, and associated connections. Gas masks shall be further dc- sci ibed according to the specific gases or vapors against which they are designed to provide respiratory protection, as follows: Typo or front-mounted or b.vck- mvonted gas mask: Acid gss *. Ammonia* - Carbon monoxide *__________ 2 Organic vapors*.*___-- 2 3 *2 Maximum us* concentration, per cent by volume Type vf chin-style gas mask: Acid gas * _____________ Ammonia ..........-- Organic vapors * *______ `0.5 .5 *.5 Maximum use concentration, parts per million Type of escape gas mask: Acid gas*-* *...........__.... *1.000 Ammonia*..._______ ......... S. 000 Carbon monoxide............. 10.000 Organic vapors a a8,000 * Approval may be for acid gasea or organic vapors ss a class or for specific acid gasea. ammonia, or organic vapors. Approval may also be grsnted for combinations of add gases, organic vapors, and other gases and vapors. * Not for use against acid gases or orgnnle vapors v,ith poor warr.l i lopcrtiej or v.-:iich generate h!yh heats .vc*ion with sor bent materials in the ti-.-tcr. `Suggested maxim-'.:: use concentrations are lower than these lur some acid gasea and organic vapors. * Eye protection may be required in certain concentrations of acid gases, ammonia, and organic vapors. (c) Gas masks for respiratory protec tion against gases and vapors other than these specified in paragraph (b) of tins 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 Gas masks; required compo nents, (a) Each gas mask described in } 11.90 shall, where its design requires, contain the following component parts: (1) Facepiece or mouthpiece and noseclip; (2) Canister or cartridge: *31 Canister harness: (4) External check valve: ar.d 15) Breathing tube. (b) The components of each gas mask shall meet the minimum construction re quirements set forth In Subpart G of this part. FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO KIN 0000618 6258 -- RULES AND REGULATIONS 11.92 Canisters and cartridges In parnllet; resistance requirements. Where two or more canisters or car tridges are used In parallel, their resist ance to airflow shall be essentially equal. 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 <b) The maximum allowable resist ance requirements for gas masks are as follows: Mixuux itrsuTi.vca (us. watsr--damn baljit) 11.93 Canisters and cartridges; color mask. and markings; requirements. (c) Half-mask facepieces shall not in The color and markings of all can terfere with the fit of common Industrial isters and cartridges or labels shall con safety spectacles, as determined by the form with the requirements of the Ameri Bureau's facepiece tests In } 11.102-3. can National Standard for Identification (d) Gas masks with mouthpieces shall of Gas Mask Canisters. K13.1, obtainable be equipped with noseclips which are from American National Standards In securely attached to the mouthpiece or stitute. Inc,, 1430 Broadway, New York, gas mask and provide an airtight seal. NY 10018. (e) Facepieces shall be designed to prevent eyepiece fogging. 11.94 Filters used with canisters and cartridges; location; replacement. 11.99 Facepieces; eyepieces; minimum (a) Particulate matter filters used in requirements. conjunction with a canister or cartridge (a) Full facepieces shall be designed shall be. located on the inlet side of the and constructed to provide adequate canister or cartridge. vision which is not distorted by the eye (b) Filters shall be incorporated in or piece. firmly attached to the'canister or car (b) All eyepieces shall be designed and tridge and each filter assembly shall, constructed to meet the impact and where applicable, be designed to permit penetration requirements specified in its easy removal from and replacement Federal Specification. Mask, Air Line: in the canister or cartridge.. and Respirator, Air Filtering, Industrial, 11.93 Breathing tubes; minimum re. GGG-M-125d, October U, 1985. quirements. 11.100 Inhalation and exhalation (a) Flexible breathing tubes used in valves; minimum requirements. conjunction with gas masks shall be de (a) Inhalation and exhalation valves signed and constructed to prevent: shall be provided where necessary and (1) Restriction of free head move protected against damage and distortion. Type o( gu mask' Lnha^tloa -----------------F.ihatal- Pinal: lailoa Ual FronimounfeU or baok.mouataU (without particular ftlfer)........... eo Froat-mouutad or btck-monntwl (with approval partlculaU (lifer).... ................ I.................... Chln-styla (without particular* 70 40 Chln-styla (wttb approvad partto- ulat* altar)......______________ 65 Escap* (without particulate Altar).. 60 Escape (with approved particular* alter)............................................ * 2 3704 75 S* 55 S7O5 S5 30 50 50 30 30 a > Measured at end o(tha service lira specified la Tabl** I, 6, and 7. 11.102--2 Exhalation valve leakage test. Ca) Dry exhalation valves and valve seats will be subjected to a suction of 25 mm. water-column height whiie in a normal operating position. (b) Leakage between the valve and valve seat shall not exceed 30 milliliters per minute. 11.102-3 Facepiece tests; minimum Requirements. (a) The complete gas mask will be ment: (b> Inhalation valves shall be designed fitted to the faces of persons having (2) Disturbance of the fit of facepieces and constructed to prevent excessive ex varying facial shapes and sizes. or mouthpieces; haled air from adversely affecting car (b) Where the applicant specifies o. (3) Interference with the wearer's tridges, canisters, and filters. facepiece size or sizes for the pas m activities; and, (c) Exhalation valves shall be pro together with the approximate meast,. . - (i) Shutoff of airflow due to kinking, tected against external influence, and ments of faces they are designed to fit. or from chin or arm pressure. designed and constructed to prevent in the Bureau will insure that test subjects 11.96 Harnesses; installation, and con* struction; minimum requirements. (a) Each gag 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. ward leakage of contaminated air. 11.101 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 adjustable and replaceable harnesses designed and con structed to hold the mouthpiece in place. suit such facial measurements. (c> Any gas mask parts which must be removed to perform the facepiece or mouthpiece fit test shall be replaceable without special tools and without dis turbing the facepiece or mouthpiece fit, (d> The facepiece or mouthpiece fit test, using positive or negative pressure recommended by the applicant and de scribed in his instructions will be used before each test specified in paragraph (e) of this section, and in } 11.102-4. (e) (1) Each wearer will enter a cham ber containing 100 p.pm. isoamyl acetate 11.97 Gas mask containers; minimum requirements. (a) Gas masks shall be equipped with a substantial, durable container bearing markings which show the applicant's name, the type and commercial designa tion of mask it contains and all appro priate approval labels. | 11.102 Gas masks; performance requirements; general. Gas masks and the Individual- com ponents .of each such device shall, as appropriate, meet the requirements for performance and protection specified in the tests described in Si 11.102-1 through 11.102-5. vapor for a half-mask facepiece and i ,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: <b) Containers for gas masks shall be designed and constructed to permit easy removal of the mask. 5 ll.''S Hulf-matk facepieces, full facej.ic-rs and mouthpiecej; fit; mini, ninni requirements! tj.) Half-mask facepieces and full facepieces shall be designed and con structed to lit persons with rarious facial 11.102-1 Breathing resistance test; minimum requirements. (a) Resistance to airflow will be meas ured in flic facepiece or mouthpiece of a gas mask mounted on a breathing ma chine both before and after each test conducted in accordance with Si 11.1023, 11.102-4, and 11.102-5, with air flow (I) Two minutes, nodding and turn ing head; (II) Two minutes, callsthcnic arm movements: Oil) Two minutes, running in place, and (lv) Two n;lnutes, pumping with a tire pump into a 23 liter (1 cubic foot) con tainer. shapes and sizes cither: (1) By provid ing at a continuous rate of- 85 liters per (4) Each wearer shall not detect the ing more than one facepiece size, or (2) minute odor of isoamyl acetate during the test. FEDERAL REGISTER, VOL 37, NO. 59--SATUR0AY, MARCH 25, 1972 CAPCO KIN 0000619 RULES AND REGULATIONS G239 11.102--t Dust, lune, mist, and smoke tests, canisters containing filters; minimum requirements. (a) Gas mask canisters containing filters for protection against dusts, fumes, mists, and smokes in combination with gases, vapors, or gases and vapors, will be tested as prescribed in 5 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 DOP leakage through the canis ter shall not exceed 0.03 percent of the test concentration. 11.102-5 Canieler bench tests; mini mum requirements. (a) (1) Bench tests, except 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*m2.5* C.) to enter the canister continuously at concentra tions and rates of flow specified in Tables 5, 6, 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 6 hours, (4) Two canisters, other than those described in paragraphs (a) (2) and (3) of this section, will be equilibrated at room temperature by passing 85 percent relative humidity air through them at 64 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 factorily remove carbon monoxide from the Inhaled air. (2) Other types of front- and back- mounted canisters may also be equipped with a window or other Indicator to warn of Imminent leakage of other gases or vapors. (3) Hie window indicator canisters will be tested as regular canisters, but shall show a satisfactory indicator change or other warning before the allo.vabU canister penetration has occurred. <d> Chin-style gas mask canisters shall meet the minimum requirements set fo: th in Table 6. (el Escape gas mask canisters shall meet the minimum requirements set forth in Table 7. Tabu !.-Ciram Bench Tun and Reqciucuenti roi Front and Bace-Mocnted Oas M us c lnutsrb (Kl CFR Port It, Snbpirt I, i u.ljwj CjiilMer type Test condition Teat atnosphera Om or vapor CoRcetijr^y tton, p.p.m. Flow rate, 1p.m. Maximcm allow il/.a Somber penetra* Minimum service o( tloa, lire, testa p.p.m. nisuvj t Acid em.../............As received................ CU NO* Equilibrated........... SO* Clt NO* Organic vapors.........As received................ .. ecu Equilibrated........... .. ecu Ammoola................. A3 received............... .. NHa Equilibrated............ .. NU* Carbon monoxide... As received............. ... CO CO CO Type N.................... As received............... cu NO* ecu NH CO CO CO Equilibrated............ .. so* NO* ecu Nils 50,000 :o,oco 50.000 50,000 50,000 50,000 20.000 50.COO 30,000 30.000 50,000 6. COO 3.000 20,000 50,000 20,000 50.000 30.000 50,000 6,000 3,000 20,000 20,000 20.000 50,000 30, COO 64 64 64 32 32 32 64 U 64 32 *64 32 *32 64 64 64 64 64 *64 32 *32 32 32 32 32 32 35 36 36 46 46 4S 3S 46 3 60 4 60 2 <*) 3 P> 3 2 0) i 3 3 5$ 36 3 60 2O 3 <*> 3 <-) 45 4S 46 4s *4 CO 12 12 12 12 12 12 12 CO 60 660 6 6 6 Q CO 60 CO 6 6 i Minimum ltf will be dvtennlnvd et the Indicated penetration. > Relative humidity of t*xt etmc.'phere will b 9S3 percent; temperature of test itmojpher.wtll be lAiC.VC. i Maximum allowable CO penetration ertli be 331 cc. during the minimum m#. The peneHatloa shall not exceed 100 o.p-m. durtng this time. * Relative humidity of trst atmosphere wtll be 9S3 percent; temperature of test atmosphere entering the test fixture will be 0+2.6* C.-0* C. Table 9.--Canister Bench Tests and Rxqutjuulnts roi Chw-Sttle Oas Mise Canuteu (30 CFR Fort 11, Subpart 1,111.103-6) Canbter typo T^st condition Teat atmosphere Maximum -------------------------------- '-- Number allowable Gas or vapor Conr^ntra* ttou, p.p.m. Flow rate, l.p.ffi. of penetra tests tion. p.p.m. Mlulmum j-rvicv* :tf*. mlr.uti* 1 Add fas................ . As received......... .......EO, cu NO* Equilibrated....... .... 80s CU NO* Organic vapors.... . As received......... .......ecu Equilibrated....... .... ecu Ammonia.............. . As received........ .... NH* Equilibrated....... .... NH* 6,000 6,000 6,000 5,000 6.000 6.000 3,000 6,000 6,000 6.000 64 3 64 3 64 3 32 4 32 4 32 4 64 3 32 4 64 3 32 4 5 6 5 6 5 S 6 6 60 60 ,y 12 \2 15 12 11 12 12 12 12 Minimum life will bo determined st theIndicated penetration. Table 7.--Canister Bench Tests and Requirements tor Escafe Oas Masx Canisters (30 CFR Psrt 11, Babpart t, | U.lOJ-6) CanliUr type Tost coodltloa Test atmosphere Oaa or vapor Concentra Flow tion, rmu, p.p.m. Lpua. Maximum Number allowable or penetra tests tion, p.p.m. Minimum service life. znlautas 1 Add fas................. . As received............ ... SO* 6,000 64 3 6 CU 6,000 64 3 6 NO, 6,000 64 3 S Equilibrated......... ... 50* 6,000 32 4 s cu 6.000 32 4 $ NO* 6,000 32 4 5 Ortaolc vapors.... . As received........... ecu 6,000 64 3 6 Equilibrated.......... ... ecu 6,000 32 4 6 Ammonia.............. . As received........ 6,000 64 3 60 K-TdllVued.......... ... Nil* Carbon moj.jtl*!-4.. . A- nc.:ved............ ... CO 6.0T0 lo. r*.`j *:,32> 4 6) 2 (M CO 5.000 3 f) CO 3, U00 *32 3 () 12 12 12 12 12 12 12 12 12 .1, , *, O I Minimum life wilt be determlnrd at the Indicated penetration. Relstlre humidity of test atmosphere will be 95*3 percent: temp-'rature of test atmosphere will 23*C 5* C. 1 Maximum allowable CO psnotratlon will be 336 cc. dtxrioc tbe minimum life. The penetraticu shall not execed 600p.p.m. during this time. If effluent temperature exceeds 100* C. during this teat, the escape {U mash shall be equipped with an effective beet exchanger. Relative bamidtty of teat etxnoepbere will be 96*3 perceat; lemperatxira of test etmoepbere entering the t*et fixture will be 0+W* C.-0* C. No. 59--Ft. H- FEDERAl REGISTER, VOL 27, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO KIN 0000620 6260 RULES AND REGULATIONS Subpart J--Supplied-Air Respirators 11.110 Supplied-air respirators; de scription. (a) Suppiicd-air respirators. Including- all completely assembled respirators de signed for use as respiratory protection during entry into and escape from hazardous atmospheres are described as follows: (1) Type "A" suppliei-air respirators. A hose mask respirator, for entry into and escape from hazardous atmospheres, which consists of a motor-driven or hand-operated blower that permits the free entrance of air when the blower is not operating, a strong large-diameter hose having a low resistance to airflow, a harness to which the hose and the life line are attached and a tight-fitting facepiece. (2) Type "AE" supplied-air respira tors. A Type "A" supplied-air respirator equipped with additional devices designed to protect the wearer's head and neck against impact and abrasion from re bounding abrasive material, and with shielding material such as plastic, glass, woven wire, sheet metal, or other suitable material to protect the window(s) of facepieces, hoods, and helmets which do not unduly interfere with the wearer's vision and permit easy access to the ex ternal surface of such window(s) for cleaning. (3) Type "B" supplied-air respirators. A hose mask respirator, for entry into and escape from atmospheres not im mediately dangerous to life or health, which consists of a strong large- diameter hose with low resistance to air flow through which the user draws inspired air by means of his lungs alone, a harness to which the hose is attached, and a tight-fitting facepiece. (4) Type "BE" supplied-air respira tors. A type ``3'' supplied-air respirator equipped with additional devices de signed to protect the wearer's head and neck against impact and abrasion from rebounding abrasive material, and with shielding material such as plastic, glass, woven wire, sheet metal, or other suit able material to protect the window(s) of facepieces, hoods, and helmets which do not unduly interfere with the wearer's vision and permit easy access to the external surface of such window(s) for cleaning. (5) Type "C" supplied-air respirators. An airline respirator, for entry into and escape from atmospheres not immedi ately dangerous to life or health, which consists of a source of respirable breath ing air, a hose, a detachable coupling, a control valve, orifice, a demand valve or pressure demand valve, an arrange ment for attaching the hose to the wearer, and a facepiece, hood, or helmet. C5> T;. "CE" supplied-air respira tor;. A '. . supplied-air respirator additional devices de signed to piovct the wearer's head and t.cck again.it impact and abrasion from rebounding abrasive material, and with liiir'.u'.ng mnerial such as plastic, glass, woven wire, sheet metal, or other suit able material to protect the windowfs) c! f.-ccjvece?. hoods, and helmets which do not unduly interfere with the wearer's vision and permit easy access to the ex ternal surface of such wmdow(s) for cleaning. 11.111 Supplied-air respirators; re quired component-!. () Each supplied-air respirator de scribed in 5 11.110 shall, where its design requires, contain the following compo 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; () Flexible breathing tube; and (7 > Respirator harness. (b> The component parts of each suppiied-air respirator shall meet the minimum construction requirements set forth in Subpart G of this part. 11.112 Breathing tubes; minimum re quirements. (a) Flexible breathing tubes used in conjunction with supplied-air respirators shall be designed and constructed to fftevent: (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 tivities; and (4) Shutoff of airflow due to kinking; or from chin or arm pressure. 11.113 Harnesses; installation and construction; minimum require ntenti. (a) Each supplied-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. 11.114 Respirator containers; mini mum requirements. Supplied-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. 11.ITS Half-mark fnrrpiccet, fuff facepieces, hoods, nnd 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 (l) 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 res piratory protective qualities of the respirator. (c) Hoods and helmets shall be de signed and constructed to fit persons with various head sizes, provide for the optional use of corrective spectacles orlenses, and insure against any restriction of movement by the wearer. <d) Facepieces, hoods, and helmets shall be designed to prevent eyepiece fogging. 11.116 Facepieces, hoods, and hel mets; eyepieces; minimum require ments. fa) 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 except those on Types B, BE, C, and CE supplied-air respirators shall be designed and con structed to meet the impact and pene tration requirements specified In Federal Specification, Mask, Air Line, and Res pirator. Air Filtering, industrial GGGM-125d, October 11,196S. (c) (I) The eyepieces of AE, BE, and CE type supplied-air respirators shall be shielded by plastic, glass, woven wire, sheet metal, or other suitable 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 tor cleaning. 11.117 Inhalation and exhalation valves; check valves; minimum re quirement*. (a) Inhalation and exhalation valves shall be provided where necessary and protected against distortion. (b) Exhalation valves shall be: (1) Protected against damage and ex ternal influence; and (2) Designed and constructed to pre vent inward leakage of contaminated air. (c) Check valves designed and con structed to allow airflow toward the facepiece only shall be provided in the con nections to the facepiece or in the hose fitting near the facepiece of all Type A, AE, B, and BE supplied-air respirators. 11.118 Head harnesses; minimum re quirements. Facepieces shall be equipped with ad justable and replaceable head harnesses which are designed and constructed to provide adequate tension during use. and an even distribution of pressure over the entire area in contact with the face. 11.119 Head and neck protection; sup. plied-air respirators; minimum requirements. Type AE, BE, and CE supplled-atr respirators shall be designed and con structed to provide protection against Impact and abrasion from rebounding abrasive materials to the wearer's head and neck. 11.120 Air velocity and noi-e lc\eU; hoods and helmets; minimum re quirements. Noise levels generated by the respira tor will be measured inside the hood or helmet at maximum airflow obtainable FEDERAL REGISTER, VOL 37, NO. S9--SATURDAY, MARCH 2S, 1972 CAPCO KIN 0000621 RULES AND REGULATIONS G261 R-.thia pressure and hose length require ments and shall not exceed 3D dSA. 11.121 Breathing gas; minimum re tirements- ' (a) Breathing gas used to supply sup* plied-alr respirators shall be respirable breathing air and contain no les3 than 19.5 volume-percent of oxygen. (b) Compressed, gaseous breathing air shall meet the applicable minimum grade requirements for Type I gaseous air set forth in the Compressed Gas Associa tion Commodity Specification for Air, G-7.1 (Grade D or higher quality). (c> Compressed, liquefied breathing air shall meet the. applicable minimum grade requirements for Type IX liquid air set forth in the Compressed Gas Association Commodity Specification for Air, G-7.1 (Grade B or higher quality). 11.122 Air (upply source; hand-operated or motor driven air blowers; Type A supplied-air respirators; min imum requirements. (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 Filtitiq. nr chambers; Type U supplied-air rr-pirators; mintmum requirement1*. (a) Blowers or connections to air supplies providing positive pressures shall not be approved for use on Type B sup plied-air respirators. (b) Terminal flttlnjs or chambers employed In Type B supplied-air respi rators. shall be: (1) Installed in 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. In diameter (149 mi crometers, 100-mesh, U.S. Standard sieve). (3) Installed to provide a means for fastening or anchoring the fitting oi chamber in a fixed position in a zone of respirable air. S 11.124 Supplied-.ir respirators; performance requirements; general. Supplied-air respirators and the In dividual components of each such device shall, as appropriate, meet the require ments for performance and protection r-in the tests described in il '--4--1 through 11.124-24. 11.12!--1 Hand-operated blower te-t; minimum requirements. (a) Hand-operated blowers shall be tested by attaching them to a mechanical drive and operating them 6 to 8 hours daily for a period of 100 hours at a speed necessary to deliver 50 liters of air per minute through each completely as 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 to each blower or manifold outlet de signed for hose connections. (b) The crank speed of the hand- operated blower shall not exceed 50 revolutions per minute In order to de liver the required 50 liters of air per minute to each facepiece. (c) 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-lnch) crank, as defined in 11.124-3. (d> The blower shall operate through out the period without failure or indica tion of excessive wear of bearings or other working parts. 11.124--2 Motor-operated biower teat; minimum requirements* (a) Motor-operated blowers shall be tested by operating them at their speci fied running speed 6 to 8 hours daily for a period of 100 hours when assembled with the kind and maximum length ot hose for which the device is to be ap proved and when connected to each blower or manifold outlet designed for hose connections (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. (c) The blower shall operate through out the period without failure or indica 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-inch) crank, as defined in f 11.124-3. (e) Where the respirator is assembled with the facepiece and 15 m. (50 feet) of the hose 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 into the respiratory-inlet cov ering shall not exceed 150 liters per minute. 11.124--3 Method of measuring the power and torque required to operate blower*. As shown In 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 this wire cord. A mark is made on the cord-about 3 to 4.5 m. (10 to 15 feet) from the weight, c. Another mark is placed at a measured distance (6-9 m./ 20-30 feet is convenient) from the first. These are used to facilitate timing. Jo determine the torque or horsepower re quired to operate the blower, the drum is started in rotation manually at or slightly above the speed at which the power measurement is to be made. The blower is then permitted to assume con stant speed, and then as the first mark on the wire leaves the drum, a stopwatch is started. The watch is stopped when the second mart leaves the drum. From these data the foot-pounds per minute and the torque may be calculated. 11,124--4' Type B supplied-air respira tor; minimum requirements. No Type B suppUed-alr respirator shall be approved for use with a blower or with connection to an air supply de vice at positive pressures. 11.124--5 Type C supplied-air respira tor, continuous flow class; minimum requirements. (a) Respirators tested under this sec tion shall be approved only when they supply respirable air at the pressures and quantities required. (b) The pressure at the Inlet of the hose connection shall not exceed 863 VN/m*. (125 pounds per square Inch gage). (c) Where the pressure at any point in the supply system exceeds 863 kN/m.` (125 pounds per square inch gage), the respirator shall be equipped with a pres sure-release mechanism that will prevent the pressure at the hose connection from exceeding 863 kN/m.' (125 pounds per square inch gage) under any conditions. S 11*12-1--6 Type C Mipplicl-aip respira tor, demand and prepare demand class; 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) Hie manufacturer shall specify the range of air pressure at the point of attachment of the air-supply hose to the air-supply system, and the 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. (15 to 250 feet) of air-supply hose. (c) The specified air pressure at the point of attachment of the hose to the air-supply system shall not exceed 863 kN/m.' (125 pounds per square Inch gage), <d) (1) Where the.pressure In the alrsupply system exceeds 863 kN/m.* (125 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 nolnt :[ r.ltach:r.-:nl of the here to thy tom from exceeding f,.!3 kM.'in.*' (125 pounds per square inch gage.1. (2) The pressure-release mechanism shall be set to operate at a pressure not more than 20 percent above the manu facturer's highest specified pressure. For example, if the highest specified pres sure is 863 kN/m.* (125 pounds per square Inch), the pressure-release mechanism FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH IS, 1971 CAPCO KIN 0000622 6262 RULES AND REGULATIONS would be set to operate at a maximum o against closing off by kinking or by chin 11.1-1--12 Airflow resistance test; 1,035 fcN7m.' (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 disturb the wearer. tinuous flow class and Type CE supplied-air respirator; minimum re 11.121--7 Air-supply line mum requirements. tests; minP~ (b) Breathing tubes employed on Type C supplied-air respirators of the con Air supply lines employed on Type A. tinuous flow class shall meet the mini Type B, and Type C supplied-air respi mum requirements set forth in paragraph rators shall meet the minimum test re (a) of this section, however, an exten quirements set forth in Table 8. sion of the connecting hose may be em 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 Harness test; minimum re- quirrm**ut,4. (a) (1) Shoulder straps employed on Type A supphed-air 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. (3) The hose shall be firmly attached ployed in lieu of the breathing tubes required. (c) (1) A flexible, nonkinking type breathing tube shall; (i) Be employed on Type C supphed-air respirators of the demand and pressure-demand class; and (ii) 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 ing off by kinking or by chin or arm pres 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 air at a rate of 85 liters (3 cubic feet) per minute shall not exceed 25 milli meters <1 inch) of water. 11.124--1*4 Airflow resistance test; to the harness so as to withstand a pull sure, and shall not create a pull that will of 113 kg. (250 pounds) for 30 minutes loosen the facepiece or disturb the without separating, and the hose at wearer. Type C supplied-air respirator, pres sure-demand class; minimum require ments. tachments shall be arranged so that the 11.121--10 Airflow resi-inure lest. (a) The static pressure In the face- pull or drag of the hose behind an ad Type A and Type AE supplied-air res piece shall not exceed 38 mm. (1.5 vancing wearer does not disarrange the pirators; minimum requirements. inches) of water-column height. harness or exert pull upon the facepiece. (4) The arrangement and suitability of all harness accessories and fittings will be considered. (b) (1) The harness employed on Type B supplied-air 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 a pull of 45 kg. (100 pounds) for 30 min (a) Airflow resistance will be deter mine^ 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 (b> The pressure in the facepiece shall not fall below atmospheric at Inhalation 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. 11.121--1.1 Exhalation v:il,r 1,'aK.iee tot. utes 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 Maximum length of how Maximum resistance, mm. water-column height while in a nor attachment of the line shall permit drag ging the maximum length of hose con /or which nsplmur is approved water column h.'lght mal operating position. (b) Leakage between the valve and sidered for approval over a concrete floor without disarranging the harness or Feet Meters Inchat Millimeters valve seat shall not exceed 30 milliliters per minute. exerting a pull on the facepiece. (5) The arrangement and suitability of all harness accessories and fittings will be considered. (c) The harness employed on Type C respirators shall be similar to that re quired on the Type B respirator, or. It 75 23 1.5 33 ISO 46 15 64 250 70 3.5 so 300 91 4.0 : (c) Tlie exhalation resistance shall not exceed 25 mm. (1 inch) of water-column 11.121--16 Man tests for cases and vapors; supplicd.air respirators; gen. eral performance requirements. (a) Wearers will enter a chamber con taining a gas or vapor as prescribed In ${ 11.124-17. 11.124-18, 11.124.19, and may consist of a simple arrangement for attaching the hose to a part of the wear er's clothing in a practical manner that prevents a pull equivalent to dragging the maximum length of the hose over a concrete floor from exerting pull upon the resplratory-lnlet covering. (d) Where supplied-air respirators have a rigid or partly rigid head covering, a suitable harness shall be required to assist In holding this covering In place. height at a flow rate of 85 liters (3 cubic feet) per minute when the blower Is not operating or under any practical condi tion of blower operation. 11.124--11 Airflow resistance test; Type D and Type BE supplied-air 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 11.124-20. (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-liter (1 cubic foot) 11.121--0 Hrratliinc tube teat; mini- length to be considered for approval, container, or equivalent work. muiii coiled in loops 1.5 to 2.1 m. (S 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 air respirators shall employ one or two flexible brc-.ithing tubes of the non kinking type which extend from the facepiece to a connecting hose coupling (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. air breathed during any such test, and the wearer shall not be subjected to any undue discomfort or encumbrance be attached to the belt or harness. (c) Hie exhalation resistance shall cause of the fit. air delivery, or other (2) The breathing tubes employed shall not exceed 25 mm. (1 Inch) of water-col features of the respirator during the permit free head movement. Insure umn height at tills flow rate. testing period. FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25. 1972 CAPCO KIN 0000623 RULES AND REGULATIONS 6263 11.12!--17 Man teat for g.ies and maximum pressure with the minimum (1) The amount of particulate matter vapor?: Type A and Type All la-pirn- hose length. In the air withdrawn from the respira- l.irs: let requirements, (a) The completely assembled respi rator will be worn in a chamber contain ing 0.1 n 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 isoamyl 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). (c) The 10-minute wort test will be repeated with the blower In operation at any practical speed up to 50 revolu tions of the crank per minute. 11.121--16 Man test for ca*es am! vapors; Type B and Type Ills re-plrntori; test requirements. (a) The completely assembled respi rator wall be worn in a chamber contain ing 0.1 w 0.025 percent isoamvl acetate vapor, and 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 isoamyl acetate atmosphere will draw his inspired air through the hose and connections by means of his lungs alone. 11.121--10 Man lost for gases and vapors; Type C rc'piralivi, continu- ou --fl,I" and Type (.11 -upplicd- air re-pirator?: tv-t requirement-. u< The cjinplotely assembled respi rator v..l! be worn :n a chamber contain ing 0 1.0 C25 percent isoamyl 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 actytate-free air. (b The minimum flow of air required to maintain a positive pressure in the respiratory-inlet covering throughout the entire breathing cycle w.ll be sup plied to the wearer, provided however, that airflow shall not' be less than 115 liters per minute for tight-fitting 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. 11.121--21 Tesla for protection during ultra-ivc bl.isling; Type AE, Tyne LIE, and Type CK -upplied-air re-pirators; general performauee requirements. (a) Tests will be made under condi tions of typical abrasive blasting opera tion. (b) The tests prescribed in 55 11.124- 22. 11 121-23, and 11.124-24 wtll be con ducted under the following conditions: (1) A suction-feed abrasive blasting outftit will be used by the wearer; (2) The diameter of the air jet shall be 5 mm. (A inch); (3) Air pressure will be 27G-483 kN/ m.' '40-70 pounds per square inch); (4) The abrasive used will contain a composition of 99+ percent free silica (SiO,); (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 (S) The No. i 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 standard- mesh sieves. <c) Tests will be conducted for 30 min utes continuously. (d) (1) The person wearing the res pirator will sandblast the innde surface of a common iron kettle cf approximate hemispherical shape (about 70 cm. >30 inches) in diameter, and 113 C liters <30 gallons1 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 blast 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. (0 Inches) from the surface, and with his head approximately 46 cm. (18 inches) from the nozzle. (5) The wearer will move his liead for tory-lrJet covering shall not exceed the amount of particulate matter supplied to the respirator by more than 0.5 mg. for the 30-minutc 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. 11.12-1--22 Test for protection during abrasive blasting; Type AE suppliedair respirator; test requirements. (a) The respirator will be arranged as prescrioed in 5 11.124--17(a). and the tests prescribed in 5 11.124-21 will be performed. (b) The wearer will draw his in spired air through the hose, connec tions, and all parts of the air device br 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. 11.124--23 Test for protection during abrasive blasting; Type BE suppliedair respirator; test requirements. (a) The respirator will be arranged as prescribed in 5 11.124-18(a>, and the tests prescribing in 5 11.124-21 will be performed. (b) The wearer will draw his inspired air through the hose, connection.;, and all parts of the air device by means of his lungs alone. 11.124--2-4 Test for protection d urine: abrasive blasting; Type CK supplied* atr respirator; test requirement:*. (a) The respirator will be arranged as pi-escribed In 3 U.124-19'a>, and the tests prescribed in 11.124-21 wiU be performed. 11.121--20 Man teat for gases and ward, backward, and sideways during vapors; Type C fupplied-air respira each blasting operation. tors, demand and pressure-demand (e) (1) Air will be withdrawn continu classes; test requirements, ously during the test at the rate of 32 (a) The completely assembled respi rator will be worn In a chamber contain ing 0.tP:0.025 percent lsoamyl acetate vapor, ihc intake of the hose will be Con ner* ni to a suitable source of respirable liters (1.13 cubic feet) per minute from the respiratory-lniet covering at a point as near as convenient to the wearer's nostrils. (2) Simultaneously air will be drawn more than 2."> vf iho at ti.c -.a.T ).'<: from `.he r:1.. *; in- y '...`i i v.iii be Iccum:u i.-.o.unvl t.kc ,.i. :< :`ie -c-piratcr. a .:-;air. (f) r.e-:>ira*ors tested in ac-n. ace ,b) The test will be conducted at the ir.m.mmr. .--lOsSure with the maximum ho-; le:- '. .'.rd will be repeated at the with >5 11.124-22. 11.121-73, and 11.124-21 shall meet the follow;:'.; mini mum requirements: Figure l.---Apparatus for twu'irf.; ; .*-- required tJ operate Slower. ; C. T.: Suhpar: J, S 11.12W) FEDERAL REGISTER, VOL 37, NO. 59--SATUPDAY, MARCH 25, 1972 oADm u'im nnnnR9A CAPCO KIN 0000625 -A in -S i'rri.Y -I.tsr. n cQ U irru csm ano T r * n ; r o c m Perl ll..cubptt 3, \ 1I.I24-?) T a m . * 8 --A m -3 c rri.Y -l.iN e Urquinr.MCSTS and T ia ra --C o iitln u rd (30OPR Part 11. S u b p a rt J, |1 U 2 1-7) RULES AND REGULATIONS 6265 Subpart K--Dost, Fume, and Mist Respirators 11,130 Dust, fume, and mist respira tors; description. - Dust, fume, and mist respirators, in cluding all completely assembled respi rators designed for use as respiratory protection during entry into and escape ftom harardous particulate atmospheres which contain adequate oxygen to sup port life, are described as follows: (a) Respirators, either with replace able or reusable filters, 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 (2) dusts having an air contamination level not less than 2 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 ing, quarrying, and tunneling, and in dusts produced during Industrial opera 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. :ron, lead, magnesium, manganese, mercury 'except mercury vapor), and .:nc, which result from the sublimation or condensation of their respective vapors, or from the chemical reaction between their respective vapors and gases. fc) Respirators, with replaceable fil ters. designed as respiratory protection against mists of materials having an air contamination level not less than 0.05 milligram per cubic meter or 2 million particles per cubic foot, e.g., mists pro duced by spray coating with vntrecus 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 iSeryl- hum. and against radionuclides. (e) Respirators, with replaceable fil ters. designed as respiratory protection against radon daughters, and ra.don daughters attached to dusts, fumes, and mi: : unitors. with rc-pla-table (li ter;, de-.n.-d as respiratory protection against n.-beitos-containiiig ri-iscs and mists. 'g) Respirators, with replaceable Al ters. ci'-signed as protection against var ious combinations of particulate matter. <1ij Single-use dust respirators de signed as respiratory protection against pneumoconiosis- and fibrosis-producing dusts, or dusts and mists, including but not limited to aluminum, asbestos, coal, flour, iron ore, and free silica. <i> The types of dust, fume, and mist respirators in paragraphs (a) through (g) of this section may also be classified according to their design as follows: (1) Air-purifying respirators: and (2) Powered air-purifying respirators. 11.131 Dust, fume and mist respira tors; required components. (a) Each dust, fume, and mis respi rator described In J 11.130 shall, where Its design requires, contain the following component parts: (1) Facepiece, mouthpiece with noseclip. hood, or helmet; (2) 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. 11.132 Breathing tubes! minimum re quirements. '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 tivities: and (4) Shutoff of airflow due to kinking, or from chin or arm pressure. 11.133 Ilnrne-ves: installation 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 wearer'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 wnen not in use. 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 p-,_vciit coitramina'inq of re.-yira-tors .v'.i.c't are net removed, and to pre vent damage to respirators during trans it. 11.133 H.ilf-mn-k furrnn-rcs, full facepieces. hood*. lielrncl-. ami numllipiccc*: lit: minimum rrquir-mrut-. 'a) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial shapes and sizes either: (1) Ey providing more than one facepiece she, or. (2) by providing one facepiece she which wii fit varying facial shapes and shes. (b) Full facepieces shall proride for optional use of corrective spectacles or lenses, which shall not reduce the respi ratory protective qualities of the respira tor. Cc) 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 noseclips 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 mined by the Bureau's facepiece tests in 11.140-1 and 11.140-2. 11.135 Facepieces, hoods, and helmet*; eyepieces; minimum require* menu. Facepieces, hoods, and helmets shall he designed and constructed to provide ade quate vision which is not distorted by the eyepieces. 11.137 Inhalation and exhalation valves; minimum requirements. (a) Inhalation and exhalation valves shall be protected against distortion. fb) Inhalation valves shall bo designed and constructed and provided where nec essary to prevent excessive exhaled air from adversely affecting filters, except where filters are specifically designed fo resist moisture as prescribed in 3 11.140-5. <c) Exhalation valves shall be: (l> Provided where necessary: (2) protected against damage and external influence: and (3) designed and constructed to prevent inward leakage of contaminated air. 11.138 Fiend harnesses; minimum re quirements. fa) 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, vn'I- - -'ji;--;- tcr-able ham:..; r...- .. crusted to hold tit; tr.cfhp: ve - 11.139 Air velocity am! u**i-.- I-uc'-i hoods ami hclim-i-: mir.-hu-im requir.-ments. hfotso levels generated by :r.-j respira tor will be measured inside the hood cr helmet at maximum airfiow obtainable and shall not exceed 80 dBA. FEDERAL REGISTER. VOl. J7, NO. 59--SATURDAY. MARCH 25, 1972 r.APr.n kim nnnno G266 RULES AND REGULATIONS 11.110 DmsL, fume, and mist respira tors; performance requirements; general. Dust, fume, and mist respirators and the mdiv.uuai components of each such device shah. as appropriate, meet the requirements for performance and pro tection specified :n the tests described in 5 11.140-1 through 11.140-12 and pre scribed in Tables 9 and 10. 11.1 10-1 Isoamyl acetate tightness tcM; dnt, fume, and mist re-pirutors designed for respiratory protection against fumes of various metals hav ing an air contamination level not less limn 0.05 milligram per cubic meter; minimum requirements. (a) The respirator will be modified in such a manner that all of the air that normally would be inhaled through the inhalation port(s) is drawn through an efficient activated charcoal-filled can ister, or cartridge(s), without interfer ence with the face-contacting portion of the facepiece. (h> The modified respirator will be worn by persons for at least 2 minutes each In a test chamber containing 100 parts (by volume) of isoamyl-acetate vapor per million parts of air. (c) The odor of isoamyl-acetate shall not be detected by the wearers of the modified respirator while in the test atmosphere. 11.1-10--2 I-oamvl acetate tightness test: respirators designed for rc'piratory protection against dusts, fumes, and m|.1< having an air contamina tion tcvi*i less titan 0.05 milligram per cubic meter, or against radio nuclides; minimum requirements. (a) Tito applicant shall proride 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 fdter ..rut. (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 isoamyl-acetate vapor per million parts of air. (2) The following work schedule will be performed by each wearer in the test chamber: (1) Two minutes walking, nodding, and shaking head in normal movements; and (ii) 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 odr.r c. iso.imyl-acetate shall not be ' '. >i. curing :ho t. . . .. .. - -t-spirator is cqu.pcod : . c .-.rc, hood, holme:. c-r .-.... -. t .mioter or cartridge will i ; ;.-:.tc- of the filter unit, and - - - -,:h v. ear the modified res- , . . -. : iv-.rmg for 5 minutes in containing 1,009 parts (by \. '.::! isoamyl-acctate vapor per in of r.-r, performing the work schedule specified in paragraph (b) (2) of this section. 11.110--3 Air-purifying filter tests; performance requirements; general. 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. 11.140--4 Silica dust test; single-use or reuseahle filters; minimum require ments. (a) Three respirators with single-use filters will be tested for periods of 90 minutes each at a continuous airflow rate of 32 liters per minute for air-puri fying respirators, and for periods of 4 hours each at a flowrate not less than 115 liters per minute to tight-fitting facepieces, and not less than 170 liters per minute to loose-fitting hoods and-hel mets for powered air-punfying respira tors. (b) The relative humidity in the test chamber will be 20-80 percent, and the room temperature approximately 25* C. (c) The test suspension in the chamber will not be less than 50 nor more than 60 milligrams of flint (99+ percent free silica) per cubic meter of air. (d) The flint in suspension will be ground to pass 99+ percent through a 270-mesh sieve. (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 exceed 2. (f) The total amount of unretained 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 tight-fitting facepiece, and 21.3 milligrams for a powered air-purify ing respirator with loose-fitting hood or helmet. (g) Three respirators with reusable fil ters will be tested and shall meet the requirements specified in paragraphs (a)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. 11.140-5 Silira-duat test; single-use dust respirators; minimum require ments. (a) Three respirators will be tested. (b) As described in 5 11.140-4, 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 wi'h a work r; 'c of 422 kg.-n:.' mittu-"-e shall be i---y-.i. (C) Air exitaled till-/.; :h the re. puator will be 35* z:-' C. '5V ,;3- F.t with 94 3 percent relative humidity. <d) Air inhaled through the reipirator will be sampled and analyzed for respirator leakage. (e) The total amount of unretained test suspension, after drying, in samples taken during testing, shall not exceed 1.8 milligrams for any single test. 11.140-6 Lead fume 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 US 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 relative humidity in the test chamber will be 20-80 percent, and the room temperature approximately 25* C. (c) The test suspension in the test chamber will not be less than 15 nor more than 20 milligrams of freshly gen erated lead-oxide fume, calculated as lead (Pb), per cubic meter of air. (d) The fume will be generated by Impinging an oxygen-gas flame on molten lead. (e) Samples of the test suspension will be taken during each test period for analysis. (f) The total amount of unretained test suspension In the samples taken dur ing testing, which is analyzed and calcu lated as lead (Pb), shall not exceed 1.5 milligrams of lead for an air-purifying respirator, 4.2 milligrams of lead for a 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 helmet. 11.110-7 Silica nul tC't; 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 test 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 air-purifying respirator with loose-fitting hood or helmet. FEOkPAl EECISTBR, VO',. 3/, MO. 59--SATURDAY, MARCH 25, 1972 i i 7 * i i .2 i % i I t 4 I 1 V ? CAPCO KIN 0000627 RULES AND REGULATIONS 6267 11.110-3 Test** for respirators dcriuned for respiratory protection nzain'.t more than one type of jlispcrsoitl; minimum requirements. Respirators designed as 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. X 1.140-9 Airflow resistance tests; all dust, fume, and mist respirators; minimum requirements* (a) Resistance to airflow will be meas ured In the facepiece, mouthpiece, hood, or helmet of a Just, fume, or mist res pirator mounted on a test fixture with air flowing at a continuous rate of 85 liters per minute, both before and after each test conducted in accordance with 55 11,140-4 through 11.140-7. (b) The maximum allowable resistance requirements for dust, fume, and mist respirators are as follows; . StAxutm Resistance 7mm. wiUr*cotuznn bright) InltUl Final Exhala. tnhalt* Inhnla* Moa 11.110--il DOR filler test: respirator) designed as respiratory protection against dusts, fumes, and mists hav ing an air contamination level less titan 0.05 milligram prr cubic meter anil against radionuclides; minimum requirements. (a) All single air-purifying respirator filter units will be tested in an atmos phere concentration of 100 micrograms 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 pain, the flow rates will be 16 and 42.5 liters per minute, respectively, through each filter. (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 dust loading test; respirators designed as protection against dusts, fumes, and mists hav ing an air contamination level less than 0.05 milligram per cubic meter and against radionuclides; minimum requirements. Three respirators will be tested In accordance with the provisions of 5 11.140-4 and shall meet the minimum requirements of 55 11.140-4 and 11.140.9. Table o--F.vcErtEct Test RtqnaEitE.sTS GO CrP. Part It. Subpnrt K, 111.1 W-t. etseq.) \t 1 mist. Da?: .vl m!it,, %i*r. r ___ Rat]................. Asboiios dust and mist-- 30 w 20 40 IS 25 1* 25 30 7) 15 11 t Me vnrM afttr stlic* dust test described is 5 11.140-4. 11.140--10 Exhalation valve leakage test; minimum requirements, i a) Dry exhalation valves and valve seats will be subjected to a 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. Tlrcpirutur tyr-'S Fr<sur* ti&li'n** rsonajrl acM.iu tA*.t t*si' IL140-1 11.140-2 Dusts:Air ContaralnitlOQ Level not lee tbaaO.Oi tne/M* or 2 mppef......... Furoe: Air Contuv.inv (ton Lovrl no* los ibna Misti: Air Cent \minatloa Lvvei sot less than 0.05 mc/M* or 2 mpp'f.. Dusts. Kura. and Mistt; Air Cor.'jjmr.auon L*r*l lea than 0.05 mtf Mi or 2 ntnrwf, end Asbetos-couuuuing dusts X X X x X X X X X . ____ > Tat Is required only when applicable. Table io--Am-Peairrao add Fowesso Ais-Pueittixo Resrbatoi Foxes Tests Reotoeo to* Arntoru (90 CFB Pvt 11. tobpart 1C I U.UM, et uq.) Ruplracor types Lmd allies DOP Sfllea dust tests turae mist tees --------------------------------------- test teat ILIUM 1LMM It 140-12 IL MM h. 140-7 1L140-11 Dusts: Air Centsruination Lsrel oat less tbsa 0.05 m*/ X ............. .........___ ___ ____ ____ -- ----------------- M' or 2 tappet. F11v::l:- a AI: Contamination Lerel oat teas than 0.03 me/ -- X r_______ ------ ' , - (' i ui O.'S *nj/________ _______.................u X :......... : f. : AC1*1 vii Misiv Air Co...................... - ' M* Vf i mppei, *;r.i r tTonurtedfii. ... *i..........................................................3 71' -vi' ,;:mi.ndr m;>.t rrqApnidrntiirg - ---, X*--` ..2..*... , V. ..................*....... -- -V. X* ------X-*--? X1 L----W : F r r- ,n** only. * i 1 .'r.Mon onl7. 1T. a* r- i\ire*i only whef applicable Subpart L--Chemical Cartridge Respirators 11.150 Chemical cartridge re-pirators; description. Chemical cartridge respirators includ ing ail 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 destgned to provide, respiratory protection, as follows: Maximum use Type of chemical concentration, parts cartridge respirator: per million Ammonia _____________________________ Chlorine ...______________________ Kydrogea chloride__________________ Methyl amine....___________________ Organic vapor1 1,000 Sulfur dioxide____ __________________ 300 10 50 100 50 rtfoC for use against organic vapors artth poor warning properties or those which gen erate high heats of reaction with sorbent material In the cartridge. 1 Maximum use concentrations 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 gases or vapors, which are not specifically listed with their maximum use concentration except pesti cides, may be approved if the applicant sub mits a request for such approval. In wrttlr.to the Bureau. The Bureau and the Institute shall consider each such application and ac cept or reject the application after a -cvicw of the effects on the wearer's health and safety and In the light of any field experience In use of chemical cartridge respirators as protection against such hazards. 11.151 Chemical cartridge rrpirators; required components. () Each chemical cartridge respira tor described In 111.150 shall, where Its design requires, contain the following component parts: (1> Facepiece, mouthpiece, and nosecllp, hood, or helmet; (2) Cartridge; (3) Cartridge with filter; (4) Harness; (5) Breathing tube; and () Attached blower. (b> The components of each chemical cartridge respirator shall meet the mini mum construction requirements set forth in Subpart G of this part. 11.152 Cartridges in parallel; resist ance requirements. Where two or more cartridges are used in parallel, their resistance to airflow shall be essentially equal. C.nrtruliiri: color ami m i.-k< S^5 rrtfuirement** The color and markings of all car tridges or labels shall conform with the requirements of the American National Standard for Identification of Gcs Mask No. 53--Pt. H- FEDERAt REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 35. 1973 C.APC.O KIN 0000628 6268 RULES AND REGULATIONS Canisters, K13.1, obtainable from Amer ican National Standards Institute, InCj, 1430 Broadway New York, NY 10018. 11.154 Filters used with chemical car tridges; location; replacement (a) Particulate matter filters used In conjunction with a chemical cartridge shall be located on the inlet side of the cartridge. Co) 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 from and replacement on the cartridge. 11.155 Breathing tubes; minimum re quirement's. (a) Flexible breathing tubes used In conjunction with respirators shall be designed 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 activities; and (4) Shutoff of airflow due to kinking, or from chin or arm pressure. 11.156 Harncues; installation and construction^ minimum require* menu. (a) Each respirator shall, where nec essary, be equipped with a suitable harness de-i-ncd and constructed to hold the compoi'.'.ments of the respirator in position against the wearer's body. (b> Harn?:;*cs shall be designed and constructed permit easy removal and replacement c; respirator parts and, where applicable, provide for holding a full facepiece tn the ready position when not in use. 11.157 Re-pir:.tor 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 s.U appropriate approval labels. 11.158 llaif-ma-k facepieces, full facepiece-, mouthpieces, hoods, and helmets; tit: 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 rtr.d helmets shall be de signed and constructed to fit persons with voriou.- head sizes, provide for the optional u-~ corrective spectacles or e'u-'h r:: riovT.n . ; .g.-.aiot any restrur.'ion -.-.-arcr. (c) Mon*.: os shall be equipped with nostc which are securely at tached to ' r.- mthniece or respirator and provi i- - :t fit. (d) Full facepieces shall provide for optional use of corrective spectacles or lenses which shall not reduce the respi ratory protective qualities of the respi rator. (e> Facepieces, hoods, and helmets shall be designed to prevent eyepiece fogging. 11.158-1 Facepieces, hoods, and hel mets; eyepieces; minimum require ments. Facepieces, hoods, and helmets shall be designed and constructed to provide ade quate vision which is not distorted by the eyepieces. 11.159 Inhalation and exhalation valves; 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. (c) Exhalation vatves shall be; (1) Protected against damage and external influence, and (2) designed and con 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. 11.161 Air veloeity and noie levels; hoods and helmets; minimum requirements. Noise levels generated by the respira tor wall be measured inside the hood or helmet at maximum airflow obtainable and shall not exceed 80 dBA. 11.162 Chemical cartridge respirators; performance requirements; general. 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 H 11.182-1 through 11.162-8. 11.162-1 Breathing resistance test; minimum requirements. (a) Resistance to airflow will be meas ured in the facepiece, mouthpiece, hood, or helmet of a chemical cartndsTi respi rator mounted on a test fixture with air f*.v.vir.v at a contin;;--rat*' of Sf# litem ;vr minute, balk b;;c.e anti -r each conducted tn icc-t.uir.ie with ii a.162-5 through 11.162-3. (b) The maximum allowable resistsure requirements for chemical cartridge re pirators are as follows: MaXIUOK RulstiXCE (nun. iratencctuan bu^ht) Typo of chemical cartridge Inhalation ExhtUa* Initial Final > Por gut*, npora, or gates and fapoo.......................... .. 40 45 For cum, Tipors, or gates and ripen, and dusts, fumes, and nusts....... ........... M 70 For vapora. or gates and rapom, and mists of paints, IncQurn. and oamslu*,,...... W 70 20 so 00 1 Measured st end of Mrrlcs Uf spscifled la Tabl* 1L 11.162--2 Exhalation valve leakage test; minimum requirements. (a) Dry exhalation valves and valve seats will be subjected to a 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. 11.162--3 Facepiece test; minimum re quirements. (a) The complete chemical cartridge rzspirator_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 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. (ci Any chemical cartridge respirator part wliich 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. (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) (1) Each wearer will enter a cham ber containing 100 p.pjn. isoamyl acetate vapor for half-mask facepieces, and 1,000 p.p.m. for full facepieces, mouthpieces, hoods, and helmets. (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: (1) Two minutes, nodding and turning head: <U) Two minutes, calisthcnic arm movements; (lii) Two minutes, running in place: and (iv) Two minutes, niur.:-:..; - 'i'.'-. i pump into a 28-liter c c."- container. (4) Each wearer shall not ct--.eet the odor of isoamyl-acetate vapor ti'rrki:; the test. FEDERAl REOISTER, VOl. 37, MO. 59--SATURDAY, MARCH 25, 1972 CAPCO KIN 0000629 RULES AND REGULATIONS 6269 11.162--4 Larquer and enamel n' i*l toU; respirator* with filter*; mini mum requirement*; general. (a) 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 5 11.162-8. (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 IS 11.162-5 and 11.162-6. 11.162--5 Lacquer mist lest; minimum requirement*. (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 atomizer employed will be a No. 64-5 nozzle with setup 3, or equiv alent, operating at 69 fcN/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 156 minutes for air-purifying respirators and 240 minutes for powered air-purify.ing respirators. <D The total amount of unretained mist in the samples taken during testing, weighed as cellulose nitrate, shall not ex ceed 5 milligrams for an air-purifying respirator. 28 milligrams for a powered air-purifying respirator with tight- fitting facepiece, and 41 milligrams for a powered air-purifying respirator with loose-fitting hood or helmet. 3 11.162--6 Enamel mist test; minimum requirement*. (a) Temperature in the test chamber will he approximately 25* C. n>) 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-flt- tinr facepieces and 170 liters per minute to e-:itt.;r.g hoods and helmets of powered air-purifying respirators. (c) Airfior; through the chamber will be 20-25 air changes per minute. (d> The atomizer employed will be a No. 64 nozzle with setup 1A, or equiv alent, operating at 69 kN/m*. (10 pounds per square inch gage). (c) 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 'IT--E489b. May 12, 1953 (an enamel having a phthaiic alkyd resin 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 air-purifying respirators. (i) The total amount of unretained mist in the samples taken during testing, weighed as ash, shall not exceed 1.5 milligrams for any air-purifying respi rator. 8.3 milligrams for a powered airpurifying respirator with ttght-fltting facepiece, and 12.3 milligrams for a powered air-purifying respirator with loose-fitting hood or helmet. 11.162-7 Dust, fume, and m!t test*; respirators with filters; 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! 11.162-8. (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 $111.140-1 through 11.140-14. however, the maxi mum allowable resistance of complete dust, fume, and mist, and gas, vaper, or gas and vapor chemical cartridge res pirators shall not exceed the maximum allowable limits set forth in 3 11.162-1. 11.162--8 Bench tests; gas and vapor tests; minimum requirements; gen. oral. (a) Bench tests will be made on an apparatus that allows the test atmos phere at 50 m5 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 benen 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 and 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.pm.)) for 6 hours: Mrfiov type of cartridge: rate, l.p.m. Air purifying 25 Powered air purifying with tlght- ftttlng facepiece..____............. 115 Powered air purifying with loose- tlttlng hood or helmet________ _____ 170 (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 temperatures, end tested within 18 Lours. (g) Cartridges will be tested and shall meet the minimum requirements set forth in Table 11. Tsait 11.--C UTiuoo* Benc* Tests and IlEQVoixiiEHT* O0 CFR Part 11, Subpsrt L, 111.10-*) Cartridge Teat condition Teat atmoaphera Oaior Cencentzv vapor Uon (p.p.a.) Flowrate . Number Pen*- MInimura Q.p.cn.) of teeta trattoa1 ure< (p.pjn.) (into.) Ammonia................ . NHj . NH, 1000 64 1000 32 3 50 4 60 Cbkrrice................ . CIt 500 M 3 5 ChJortne............... . Cl, A3) 33 4 5 Hydrofen chloride. As received........ IiCl 500 64 3 6 Hydrogen chloride.... Equilibrated....... . HCt 500 33 4 5 Methyl amine........ . cu Nm 10uO 64. 3 10 Methyl amine........ .. Equilibrated......... CU| NHi 1000 33 4 10 Ortanle upon___ . ecu moo 64 3 5 Organic vapors.... , ecu l"0O 32 4 3 Sulfur dioxide..... .. As received........ SO, fiftO 64 3 6 Sulfur dioxide........ .. Equilibrated......... SO, 500 * 32 4 6 so 35 35 so 53 50 s) Z) JO 1 'M: I.'.' *'!! h* d:l '.rM at th* In 4J* 1 V. here *. r-i'.-lrAtof ta destined for r-rtpf.\tof7 this 5* r a x.'.pn-. as for a** io .ii.-.jsnnlv >ni tn chlorine, the nlni-iiuu Jif* ie os*-:. .-S-v.*n for r-irb */[ of or vapor. Wt-sf* * respirator la d&Mjtned ? *r rwpira:or7 prott'Ctj.fa more than one gas of & tjpe, a* *or ore la chlorUe and anlfar dioxide, cfce elated minimal life sbnll apply. JTo. SO--Pt. TT* FEDERAL REGISTER. VOL 37, NO. 59--SATURDAY, MARCH 25, 19/2 r.APm kin nnnnfisn C270 RULES AND REGULATIONS Subpari M--Pesticide Respirators 5 11.170 Pe.iiridr rc*pir.Hor.*; descrip- tion. Pcstic'.c'.e respirators, Including aU 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 gas masks; (b) Chin-style gas mask: (c) Chemical cartridge: (d) Air-purifying respirator with a1, lached blower: and. (e> Other devices, including combina tion respirators. 11.171 Pesticide repira;ors; required COtnfHHtffUa. (a) Each pesticide respirator described in 5 11.170 shall, where its design re quires, contain the following component parts: (1) Facepiece, mouthpiece, and nose- clip, helmet, or hood: (2) Canister with filter: (3) Cartridge with filter: (4) Harness: (5) Attached blower: and, (G) Breathing tube. (b> The components of each pesticide respirator shall meet the minimum construction requirements set forth in Subpart G of this part. 11.172 Cini.tiT. and rurlnilgM in p:ir. ai!.-l* re-i-lnner rrqjirttnient*. Where two or more canisters or car tridges r.re used in parallel, their resist ance to airflow shall be essentially equal. 11.173 Cani-trrs and cartridge*; color and markings: 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 Gas Mask Canisters, K13.1. 11.171 Kilters u*cd nilli canisters and cartridge*; location; replacement. (a) Paiticulate matter filters used In 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 ench filter assembly shall, where applicable, be designed to permit its easy removal from and replacement on the canister or cartridge. 11.175 Breathing tube*; minimum requirements* faf Flexible breathing tubes used In conjunction with respirators shall be dc v nd constructed to prevent: on of free l:; d - (2; I* -.uib-.ncc of the fit of f.'.cep/roulUpieces, hoods, or helmets: 12) T. reference with the wearer's ,\ctl-.'.rid. <: .ii'i .toST of airflow due to ki'd-.ir.j, er I", ,r. chin or arm pressure. 11.176 Harnesses; inMallation and 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 removal and replacement of respirator parts, and, where applicable, provide for holding a full facepiece in the ready position when not in use. 2 11.177 Respirator container*; mini mum requirement*. (a) Respirators shall be equipped with a substantial, durable, container bearing 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. 11.178 Half-mask facepiece*, full facepiece*, hoods and helmet*, and mouthpieces; fit; minimum requirenients* (a) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial shapes and sizes cither: (1) By providing more than one facepiece size, or (2) by providing one facepiece size which will fit varying facial shapes and sizes. ` tb< Fuii facepieces shall provide for optional use of corrective spectacles or lenses, which shall not reduce the respiratory protective quality of the respirator. (cl Hoods and helmets shall be de signed and constructed to fit persons with various head-sizes, rerrnit 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 noseclips which are securely attached 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 interfere with the fit of common indus trial safety corrective spectacles as deter mined by the facepiece tests in i 11.183- 3. 11.179 Facepieces, bonds, and hel mets; eyepiece*; minimum require ment*. (a) Facepieces, hoods, and helmets .!'. he "d and ea'i.-rir'-rr.-.J Vj p;-,-.. vidj a.:cq:;..:e vision -chicii i; n.>; dis torted h> the eyepiece. (b) Ail eyepieces of gas masks shall be designed and constructed to meet the impact ai:tl penetration rcq'urements specified in Federal Specification, Mask, Air line: and Respirator, Air filtering. Industrial, GGG-M-125d, October 11; 1963. 11.180 Inhalation and exhalation *alvcs; minimum requirement*, (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 ternal influence: and, (3> Designed and constructed to pre vent Inward leakage of contaminated air. 11.181 Head harnesses; 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. 11.182 Air velocity and noise levels; hoods and helmets; minimum re quirements. 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. 11.133 Pe-ticide respirator*: perform* ancc requirement.*; general. Pesticide respirators and the individua> components of each such device shall, aj appropriate, meet the requirements for performance and protection specified In the tests described in 5 11.183-1 through 11.183-7. 11.183--1 Breathing re*i*tancc test; minimum requirements. (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 la accordance with fi 11.183-4 and 11.183-7. (b) The maximum allowable resist ance requirements for pesticide respira tors are as follows: MAXiutnc RQistascx (mat. wtr<otuma hcichO TchaJatlon Etha* Type of Pesticide respirator la:ion Imti.d Firiil1 or bic'c-;r.et:n:M ni\\.......................................... C!ur.-r'.c jpu m-v**:................... I'uwire'] air-pnrifyin?.............. Chm'ckl rartndfJ............... "n f' *M M Vi *7*) 7v . *.*i vO .* Measured e.:i o( the s*?nlc211i* 12 la Tilda * itaftfanc* of curry's), **:J b*~ tcbc(s) only biu'.'or uot feosral Register, voi. 37, no. S9--Saturday, marc.i 25, 1972 CAPCO KIN 0000631 RULES AND REGULATIONS 6271 11.183--2 Exhalation valve leakage ti'vt; minunum requirement*. (a.) Dry exhalation valves and valve seats will be subjected to a suction of 2S nun. water-column height while-in a notmal operating position. <b) Leakage between the valve and valve seat shall not exceed 30 milliliters per minute. 11.133-3 Facrpicee lest; minimum re quirements. (a) The complete pesticide respirator will be fitted to the faces of persons hav ing varying facial shapes and sizes. (b) Where the applicant specifies a facepiece size or sizes fer 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. (c) Any pesticide respirator part which must be removed to perform the facepiece fit test shall be replaceable without special tools and without disturbing face- piece fit. (d> The facepiece or mouthpiece fit test using positive or negative pressure recommended by the applicant and de scribed in his instructions will be used during each test. Ce) (1) Each wearer wilt enter a cham ber containing 1,000 p.p.m. isoamylacetate vapor for a respirator equipped with a full facepiece, mouthpiece, hood, or helmet and 100 p.p.m. isoamyl-acetate vapor for a respirator equipped with a half-ma^k facepiece. 2) The facepiece, mouthpiece, hood, or helmet may be adjusted, tf necessary, in the test chamber before starting the weac. (3) Each wearer will remain in the chamber while performing the follow ing activities-. ti) Two minutes, nodding and turn ing head: fii) Two minutes, calisthcnic arm movements; iiii) Two minutes, running in place; and. tlv) Two minutes, pumping with a tire pump into a 23-liter (1 cubic foot) container. (4) Each wearer shall not detect the odor of isoamyl-acetate during the test. (d) The particle size distribution of the test suspension will have a geometric mean diameter of 0.4 to 0.6 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. 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, ba^k-mounted. and chin-style gas mask pesticide respirators and chemical cartridge pesticide res pirators and not less than 115 liters (4 cubic feet) per minute, for powered airpurifying respirators with tight-fitting facepieces, and not less than 170 liters (6 cubic feet) per minute for powered air-purifying respirators with loosefitting hoods and helmets. (b) The test aerosol will contain 1520 milligrams of freshly generated leadoxide fume, calculated as lead, per cubic meter of air. fc) The fume will be generated by im 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 00 minutes and powered air-purifying pesticide res pirators will be tested for 4 hours. (e) The total amount of unretained test suspension, which is analyzed and calculated as lead, shall not exceed: tl) 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. 11.133--fi Dioctyi-plttliaiau- last: min imum requirements. (a) All canisters submitted for use with front-mounted and back-mounted gas mask pesticide respirators will be tested In an atmospheric concentration of 100 micrograms of dioctyi-phthalV.e per liter of air at continuous flow rates of 32 and 35 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. 11.183--7 Bench tests; minimum re quirements. (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. (2) Canisters and cartridges will be tested as they are used on each pesticide respirator, either singly or in pairs. (3) Tliree canisters or cartridges or pairs of cartridges will be removed from containers and tested as received from the applicant. (4) Two canisters, cartridges, or pairs of cartridges will be equilibrated at room temperature by passing 25 percent rela tive humidity air through them at the following flow rates (expressed as liters per minute (l.p.m.)) for 6 hours: Type of canister or cartridge Air-purifying canUter...... Air-purifying cartridge......... Powered air*purify;r.g w: flume facepiece... Powered air-purifying ?. fitting hood or helmet... Airflow l.p.m. 64 ocje17.1 *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 6 hours. ($) The equilibrated canisters or car tridges will be resealed, kept in an up right position at room temperature, and tested within Id hours. (b) Canisters and cartridges tested in accordance with the provisions of this section shall meet the requirements spec ified in Table 12. 11,183--4 Silica dust test; minimum re quirements. Three completely assembled pesticide respirators will be tested with a mechanical-testing apparatus as fol lows: (a) Temperature in the test chamber will be approximately 23* C. (b) Continuous airflow through the respirator will be 32 liters per minute for front-mounted, back-mounted, and chin-style gas mask pesticide respirators and chemical cartridge pesticide respira tors. and not less than 115 (4 cubic feet) liters per minute to tight-fitting face pieces and 170 titers (6 cubic feet) per minute to loose-fitting hoods and hel mets of powered air-purifying respira tors. (c) The test aerosol will contain 50-60 milligrams of 99+ percent free silica per cubic meter of air. Tabic 12.-C.\*oon TcttAcraoRioc Bcscri Teats and Reql*i*f.mests ro* Canisters and Cartridofj (90 CFR Ptrt 11. Sabput M, | U. 183-7) Tip* of pesticide respirator Test concentre- Flow rU Minimum life. Uons^g.p.m. l.p.m. Number of tots minutes Chest-mounted or beck-mounted |oi mask to received)............ ...................................................... Chwt-mounted or back-mounted pas mask (equil ibrated) ..................... ............................................... Chin-style mask (as weired).................................. Chin-style p.is uruk (rqiulibraltd).............................. Chetr'i jI C ir"rl,*e rv-?p:r.Tfor revived*.............. -ii-MUiri* q:ihlr.r**.'........... l\.*wr-i*i"f i*.-r '-V. v r* ccfv.-dj............................................. Powvr.-l w.r*iar*.fv::.ir rt-d-irn'or (AcepKC*.e;'i:lilr-\te*l)............................................ Power*d sir-piir.ijinc respirator (Wve-fiiii.'w hood or helmet rcevired).................................................... Powered a:r*|Mnftin: r<-3p,raQe fleoMtittin; hood or helmet, i-init/brated)........................................... 20.000 20.000 5.000 5.000 1.000 I,W>J l.tfrt 1.000 1.000 1,000 64 32 61 M M 115 > 115 *170 *170 3 4 3 4 .1 4 3 4 3 4 i Minimum lifewlU to determined at5 p.p.m. leakoce. ` The flow rate shalt be the eiTccltre flow rateof the detlca, but shall to notleas th-vj 115 Lp.au * The flow rato shall to the eflecUre flow rate of tha dorfoe, but shall to not loss than 170 Lp.nu fPR Doc.72-411$ Filed 3-24-72:8:46 am] 12 3 ) M !6 FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 15, 1972 CAPCO KIN 0000632