Document RJO6rpJzb8aEO8Bg1gYLajJaB

SATURDAY, MARCH 25, 1972 WASHINGTON, D.C. Volume 37 Number 59 PART II DEPARTMENT GF THE INTERIOR Bureau of Mines a Respiratory Protective Devices; Tests for Permissibility; Fees No. 69--Pt. ii------ 1 CAPCO JEN 0005618 6244 RULES AND REGULATIONS Title 30--MINERAL RESOURCES Chapter I--Bureau of Mines, Department of the Interior SU3CHAPTE* B---- RESPIRATORY PROTECTIVE APPARATUS; TESTS FOR PERMISSIBILITY; FEES PART n--RESPIRATORY PROTEC TIVE DEVICES; TESTS FOR PER MISSIBILITY; FEES PART 12--SUPPLIED-AIR RESPIRATORS PART 73--GAS MASKS PART 74--FILTER-TYPE DUST, FUME, AND MIST RESPIRATORS PART 74a,--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. 369, os 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 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). 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.~o.-ed regulations specified that protection factors for certain types of respirators would be determined by tlie 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 data in order to incorpo rate requirements for protection factors into Fart 11 at a later date. Other significant technical revisions are: (1) Performance req;...--merits have Sec. Ill iU 11.3--1 lh I.4 Subpart A--G,n*rcl Provisions Purpoee. Approved respirators. Selection, nt, use, and mainte nance of approved respirators, Definitions. Incorporation by reference. Subport B--Application for Approval II. 10 11.11 11.13 Application procedure*. Contents of application. Delivery of respirators by appli cant; requirements. replaced certain design . -teciflcations: 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 Fart 11 (Subparts A through F). followed by all technical 11.30 .. 11.31 1133 Svbpart C--Foes Examination. Inspection, and testing of completerespirator assemblies; fees. Examination, inspection, and testing of respirator compo nents or subassemblies; fees. Unlisted fees; additional fees; payment by applicant prior to approval. requirements (Subparts G through I/O. Expanded and more stringent quality control requirements have been estab lished (Subpart E). Examples of causes which may result in revocation of the Svbpart D--Approval and Disapproval 11.30 1131 11.33 Certificates of approval; 6Cope of approval. Certificates of approval; contents. Notice of disapproval. 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 7 11.2). A suggestion was received that models submitted for testing and approval be made only on regular production tooling with no operations Included which would not be incorporated in regular produc tion processing in order to insure that commercially produced respirators would be identical in all respects to those tested and approved under these regulations. This suggestion was carefully considered. However, it was determined by the Bu reau and the Institute that such a re quirement might well operate to obstruct advances in respirator technology, since substantial investment would be neces sary to build production models with no adequate assurance of ultimate approval. 1133 1134 1135 11.3# 11.40 11.41 11.43 11.43 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 approved respirator.' Subpart E--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. Subpart F--Classification of Approved Respira tors; Scope of Approval; Atmospheric Hazards; Consequently it was decided to continue the testing of soundly designed and con structed prototype models: however, upon completion of such testing the Bu reau and the Institute may require the applicant to resubmit a production model for additional testing prior to issuance of a certificate of approval (see 55 11.11 (e> and 11.30). Service Time 11.60 1131 11.63 11.63 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 l)y SubpdrtG--General Construction and Performance Requirements revoking Parts 11, 12, 13. 14, and 14a, 11.60 and substituting therefor a new Part 11__ Construction and performance re quirements; general. Respiratory Protective Devices; Tests for ll.fil 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 11.84 ments. Component parts; minimum re quirements. Tost requirements; general. Pretesting by applicant; approval \V. T. Pecop.l. Ac:ini/ Secretary of the Interior. 11.05 of tost methods by the Bureau. Conduct of examinations. Inspec February 17, 1972. Elliot L. Richardson, Secretary of Health, Education, and Welfare. 11.6# tions, and te3ts by the Bureau and the Institute; assistance by applicant; observers; recorded data; public demonstrations. Withdrawal of applications; re March 10, 1072. fund of fees. FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 35, 1973 CAPCO JEN 0005619 RULES AND REGULATIONS 6245 Subport H--Self-Contained Breathing Apporoha Z*c. 11.70 11.71 11.73 11.73 Self-contained breathing appara tus; description. Seif-contalned breathing appara tus; required components. Ereathlng tubes; minimum re quirements. Harnesses; installation and con struction; minimum requlre- 11.74 11.75 Apparatus containers; minimum requirements. Half-mash facepieces* full faoe- ptecee, mouthpieces; fit; mini 11.76 mum requirements. Facepieces; eyepieces; minimum requirements. 11.77 11.18 Inhalation and exhalation valves; .minimum requirements. Head, harnesses; minimum re 11.79 quirements. Ereathlng _ gas; minimum re 11.73-1 11.89 quirements. Interchangeability of oxygen and air prohibited. Compressed breathing gas and liquefied breathing gas con tainers; minimum require 11.81 ments. Gas pressure gages; minimum re 11.83 11.83 quirements. Timers; elapsed time Indicators; remaining service life Indica tors; minimum requirements. Hand-operated valves; minimum requirements. 11.84 11.85 Breathing bags; minimum re quirements. Self-contained breathing appara tus; performance requirements; 11.85-1 general. Component parts exposed to oxy 11.85-2 gen pressures; minimum re quirements. Compressed gas filters; minimum requirements. 11.85-3 11.85-4 11.85-5 Breathing bag test. Weight requirement. Breathing resistance test; inhala Ll.85-6 11.85-7 1135-8 tion. Breathing resistance test; exhala tion. Exhalation valve leakage test. Gas flow test; open-circuit ap- 11.85-0 11.85-10 ' paratus. Gas flow test; closed-circuit ap paratus. Service time test; open-circuit apparatus. 11.85-11 Service time test; closed-circuit apparatus. 11.85-13 - Test for carbon dioxide 'In In spired gas; open- and cloeedclrcult apparatus; maximum allowable limits. 11.85-13 Tests during low temperature op eration. 1135-14 Man tests; testing conditions; 11.85-15 general requirements. Man tests 1, 3, 3, an-4; require ments. 11.85-16 Man test 6; requirements. 11.85-17 Man test 6; requirements. 11.85-18 Man testa; performance require ments. 11 85-19 Oas tightness test; minimum re quirements. I i *`9 II Di 11.91 1197 1194 Subport 1--Co* Maskt O.vs masks; description. Gas masks; required components. Canisters and cartridges in paral lel; resistance requirements. Canisters r.nd cartridges; color and markings; requirements. Filters used with canisters and cartridges; location; replace ment-. See. 1135 1136 11.97 11.98 1139 11.100 11.101 11.103 11.102-1 11.102-2 11.102-3 11.102-4 11.102-5 Breathing tubes; minimum -re quirements. Harnesses; installation and con struction; * minimum require meats. Oos mask containers; minimum requirements. Half-mask facepieces, full face- pieces, and mouthpieces; lit; minimum requirements. Facepieces; eyepieces; minimum requirements. : Inhalation and exhalation valves; minimum requirements. Head harnesses; minimum re quirements. Gas masks; performance require ments; general. Breathing resistance test; mini mum requirements. Exhalation valve leakage test. Facepiece tests; minimum re quirements. Dust, fume, mist, and smoke tests; canisters containing fil ters; minimum requirements. Canister bench tests; minimum requirements. Subpart J--Supplied-AIr Respirators 11.110 11.111 11.112 11.113 11.114 11.115 11.116 11.117 11.118 11.119 11.120 11.121 11.122 11.123 11.124 11.124-1 11.124-2 11.124-3 SuppHed-air respirators; descrip tion. Supplled-alr respirators; required components. Breathing tubes; minimum re quirements. Harnesses; Installation and con struction; minimum require ments. Respirator containers; minimum requirements. Half-mask facepieces, full facepieces, hoods, and helmets; fit; minimum requirements. Facepieces, hoods, and helmets; eyepieces; minimum require ments. Inhalation and exhalation valves; check valves; minimum require ments. Head harnesses; minimum re quirements. Head and neck protection; sup plled-alr respirators; minimum requirements. Air velocity and noise levels; hoods and helmets; minimum requirements. Breathing gas: minimum require ments. 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; Hand-operated blower test; mini mum requirements. Motor-operated blower test; min imum requirements. Method of measuring the power and torque required to operate blowers. 11.124-4 Type B 6upplled-alr respirator; minimum requirements. 11.124-5 Type C supplled-alr respirator, continuous Cow class; mini mum requirements. U.124-6 Type C supplled-alr respirator, demand and pressure demand class; minimum requirements. 11.124-7 Air-supply line tests; minimum requirements. 11.124-8 Harness test; minimum require ments. Sec. 1024-0 11.124-10 11.124-11 11.124-13 11.124-13 11.124-14 11.124-15 11.124-16 11.124-17 11.124-18 11.124-19 11.124-20 11.124-21 11.124-22 11.124-23 11.124-24 Breathing tube test; minimum requirements. Airflow resistance test. Type A and Typo AE supplled-alr res pirators; minimum require ments. Airflow resistance test; Type B and Type BE supplted-alr res pirators; minimum require ments. Airflow resistance test; Type c supplled-alr respirator, con tinuous flow, class and Type CE supplled-alr respirator; minimum requirements. Airflow resistance test; Type C supplled-alr respirator, demand class; minimum requirements. Airflow resistance test; Type C supplled-alr . respirator, pres sure-demand class; minimum requirements. Exhalation valve leakage test. Man tests for gases and vapors supplled-alr respirators; gen eral performance requirements. Man tests for gases and vapors; Type A and Typo AE respira tors; test requirements. Man tests for gases and vapors; Type B and Type BE respira tors; test requirements. Man test for gases and vapors: Type C respirators, continuousflow class and Type CE sup plled-alr respirators; test re quirements. Man test for gases and vapors; Type C supplled-alr respirators, demand and pressure-demand classes: tese requirements. Tests for protection during abra sive blasting: Type AS, Type BE. and Type CE supplled-alr respi rators; general performance re quirements. Test for protection durtng abra sive blasting; Typo AE sup plled-alr respirator; test re quirements. Test for'protection during abra sive blasting: Type BE sup plled-alr respirator; test re quirements. Test for protection durtng abra sive blasting; Type CE sup plled-alr respirator; test re quirements. Subpart K--Dust, Fume, and Mitt Respirators 11.130 11.131 11.132 11433 11.134 11.135 11.136 11.137 Dust, fume, and mist respirators; description. Dust, fume and mist respirators; required components. Breathing tubes; minimum re quirements. Harnesses: installation and con struction;* minimum require ments. Respirator containers; minimum requirements. Half-mask facepieces, full face pieces, hoods, helmets, and mouthpieces; fit; minimum requirements. Facepieces, hoods, and helmets; eyepieces; minimum requirenvutts. Inhalation and exhalation valves; minimum requirements. 11.138 Head harnesses; minimum re quirements. 11439 Air velocity and noise levels; hoods and helmets; minimum requirements. 11.140 Dust, fume, and mist respirators; performance requirements; general. FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005620 C1M6 RULES AND REGULATIONS Sec. 11.140-1 Sec. Isoamyl acetate tightness test; I 11.162 dust. fume, end mist respire- I and the National Institute for Occupa Chemical cartridge respirators: tional Safety and Health of respirators performance requirements; gen or changes or modifications of approved 11.140-2 11.140-3 11.140-4 11.140-5 tors designed for respiratory , protection agatnst fumes of 11.162-1 various metals having an air contamination level cot less 11.162-2 than 0.05 milligram per cubic meter: minimum requirements. 11.162-3 Zjoamyl acetate tightness tost; respirators designed for respira 11.162-4 tor? protection against dusts, fumerf, and mists having an air contamination level less than 11.162-5 0.05 milligram per cubic meter, or against radionuclides; mini 11.162-6 mum requirements. Air-purifying Alter tests; per formance requirements; gen 11.162-7 eral. Slilca dust test; single-use or re 11.162-8 usable Alters; minimum re quirements. Breathing resistance test; ratnlmum requirements. Exhalation valve leakage test; minimum requirements. Facepiece test; minimum require ments. Lacquer and enamel mist tests; respirators with filters; mini mum requirepients; general. Lacquer mist test; minimum re quirements. Enamel mist test; minimum re quirements. Dust. fume, and mist tests; res pirators with filters; minimum requirements; general, Bench tests; gas and vapor tests; minimum requirements; gen eral. Silica dust test; single-use dust Subpart M--Pesticide Respirators respirators; <b) to establish a schedule of fees to be charged each applicant for the inspections, examinations, and test ing conducted by the Bureau under the 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 respiratory protection requirements set forth in this part; and <d> to specify minimum requirements and to prescribe methods to be employed by the Bureau and by the applicant in conducting in spections, examinations, and tests to determine the effectiveness of respirators used during entry into or escape from hazardous atmospheres. 11.140-5 11.140-7 11.140-8 11.140-9 11.140-10 11.140-11 11.149-12 respirators; minimum require ments. Load fume test, minimum re quirements. Silica mist test; mi:;.mum re quirements. Tests for respirators designed for respiratory protection against more than* one type of dispersold; minimum requirements. Airflow resistance tests; all dust, fume, and mist respirators; minimum requirements. Exhalation valve leakage test; minimum requirements. DOP fllter test; respirators de signed sa respiratory protection against dusts, fumes, and mists having an air contamination level less than 0.05 milligram per cubic meter and against radionuclides; minimum re quirements. Silica dust loading test; respira tors designed as protection against dusts, fumes, and mists having an air contamination level less than 0.05 milligram per cubic meter and against radionuclides; minimum re quirements. Subport l--Chemical Cartridge Respirators 11.150 11.151 11.152 11.153 11.164 21.155 11.156 11.157 11.158 Chemical cartridge respirators; description. Chemical cartridge respirators; required components. Cartridges In parallel; resistance requirements. Cartridges; color and markings; requirements. Filters used with chemical cart ridges; location; replacement. Breathing tubes; minimum re quirements. Harnesses; Installation and con struction; minimum require ments. Respirator containers; minimum requirements. Half-mask facepieces, full face pieces, mouthpieces, hoods, and helmets; At; minimum require 11.170 11.171 11.172 11.173 11.174 11.175 11.176 11.177 11.178 11.179 11.180 11.181 11.182 11.183 11.183-1 11.183-2 11.183-3 11.183-4 11.183-5 11.183-6 11.183-7 Pesticide respirators; description. Pesticide respirators; required components. Canisters and cartridges In paral lel; resistance requirements. Canisters and cartridges; color and markings; requirements. Filters used with canisters and cartridges; location; replace ment. Breathing tubes; minimum re quirements. Harnesses; installation and con struction; minimum require ments. Respirator containers; minimum requirements. Half-mask facepieces, full face pieces, hoods and helmets, and mouthpieces; At; minimum re quirements. Facepieces, hoods and helmets; eyepieces; minimum require ments. i Inhalation and exhalation valves; minimum requirements. Head harnesses; minimum re quirements. Air velocity and noise levels; hoods and helmets; minimum requirements. Pesticide respirators: performance requirements; general. Breathing resistance test; mini mum requirements. Exhalation valve leakage tost; minimum requirements. Facepiece test; minimum require ments. Silica dust test; minimum re quirements. Lead fume test; minimum re quirements. Dloctyl-phthalate test: minimum requirements. Bench tests; minimum require ments. Authorttt; The provisions of this Part 11 Issued under sections 202(h), 204, and 506 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 Stafc. 681 (30 11.2 Approved respirator?. (a) Until March 30, .1974, respirators 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) The same in all respects as those respi rators which have been approved after 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 partment of the Interior, in accordance with the schedules set forth below; and (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; 13B, August 12. 1935; 13C, July 9, 1946; 13D, September 22, 1956; and 13E, July 19, 1968. (ii) Gas Masks, Bureau of Mines Schedule 14P, April 23, 1955. (iil) Supplied-air Respirators, Bureau of Mines Schedule 19B, April 19, 1955. (iv) Filter-type Dust, Fume, and Mist Respirators, Bureau of Mines Schedule 21B, January 19, 1965. (v) Nonemergency Gas Respirators, Bureau of Mines Schedule 23Bf August 4, 1959. <b> After March 30, 1974, respirators 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, only where such respi rators or combinations of such respira tors are: (l) The same in all respects as those respirators which have been ap proved after meeting the minimum re quirements for performance and respira ments. U S.C. 3. 5, and 7). tory protection prescribed in this Part 12.lt: r.-.vptoct'S, hoods, and hornets; . .'cpieccs; minimum require Subpart A---Genera! Provisions 11; and (2) maintained in an approved 11.159 ments. Rihalatlon and exhalation valves; minimum requirements. condition. 11.1 Purpose. The purpose of the regulations con 11.2--J Selection, fit, and mainte nance of approved rr-piralors. 11.169 Head harnesses; minimum re tained in. this Part 11 is: (a) To establish quirements. procedures and prescribe requirements In order to insure the maximum 11.102 Air velocity and nolye levels; which must be met in filing applications amount of respiratory protection, ap hoods and helmets; minimum requirements. for joint approval by the Bureau of Mines proved respirators shall be selected, FEDERAL REGISTER, VOl. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005621 RULES AND REGULATIONS 6247 fitt'il. Used, and maintained in accord ance with the provisions of the American National Standard Practices for Respir atory Protection, Z88.2, obtainable from American National Standards Institute, Inc., 1430 Broadway, Now York, NY 10018. (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 respirable gas source. fo) "Final inspection" means that ac tivity carried out on a product after all 11.3 Definitions. manufacturing and assembly operations As used in tills part-- _are completed to insure completeness and (a i "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, either 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-defl- and the Institute stating that an individ clent atmosphere. ual respirator or combination of respi vs) A "hood" or "helmet" is a respira rators ha3 met the minimum require tor component which covers the 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 reouircments of this severe exposure to contaminants, such Part 11. as radioactive materials, which are likely <e> "Auxiliary equipment" means a to have adverse cumulative or delayed self-contained breathing apparatus, the elfccts on health. u=e 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. b:c..thing apparatus of 2 hour's 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. Rureau duction and at each step of the manu of Mines. Department of the Interior. facturing process, so that departures (g> "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 (i) "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, wliich is generated by phere which may produce physical dis vaporization and condensation of dioctyl comfort immediately, chronic poisoning plithalate. after repeated exposure, or acute adverse "Dust" means a solid mechanically physiological symptoms after prolonged ' l particle with a v;*/.e ranging a. :..:".icroiCopic to m.icrooco.iic. -pirate:-.; "for t-.ilry into and c from" means respiratory devices .cluing protection during entry into a". I < seape from hazardous atmospheres. ira'.i "Oxygen deficient atmosphere" meins an atmosphere which contains an oxygen partial pressure of less than 143 millimeters of mercury (19.5 percent by volume at sea level). "a1 Respirators "for escape only" (bb) "Pesticide" means (l> any sub is.-.'.ns 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 Rodenticide 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 in 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 !>v 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. 2.22.2, are available for examination in every Coal Mine Health and Safety Dis trict and Subdistrict Office. Subpart B--Application-for Approval 11.10 Application procedure-. (iii Inspection.e:-.-itriii.r-:and ins leading to the a;;;.:\-.v.:i of il.o typ-'s of respirators classmed in Suhpart F of this part shall be undertaken by the Bu reau only pursuant to written applica tions which meet the minimum require ments set forth in this Subpart B. (b) Applications shall be submitted to Approval and Testing. Bureau of Mines. 4800 Forbes Avenue. Pittsburgh, PA FEDERAL REGISTER, VOl. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005622 624S RULES AND REGULATIONS 15213, and shall be accompanied by a check, bank draft, or money order in the amount specified In Subpart C of thi* part payable to the order of the U.S. Bureau of Mines. <c) Except as provided in $ 11.64, the examination, inspection, and testing of all 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 la 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. fd> Each application shall contain a statement that the respirator has been pretested by the applicant as prescribed in 5 11.64, and shall Include the results of such tests. Ce' 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. 11.12 Delivery of respirators by appli cant; requirements, (a) Each applicant shall, when an ap plication is filed pursuant to 111.10, 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, Pittsbur.-h. Pa. 15213. i~ r: ncrs and component parts .'".i1:::-.' ...i for approval must be made from. materials specified in the appiica- 1 d'. One completely assembled respiral>r .-..proved under the provisions of part may be retained by the Bu re; as a laboratory exhibit, the remaini:: respirators may be returned to the nr-.' rant at h>; 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 maimer as it deem3 appropriate. Ce) Where a respirator falls to meet the requirements for approval set forth in this part, all respirators and compo nents delivered in accordance with this section may be returned to the appli 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. Subparf C--Fees 11.20 Examination, inspection and testing of complete respirator assem blies; foes- Except as provided in 5 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 eacope. 1 hour or more ................... S3.600 _ (2) Entry and escape, leu than J hour ___ 2, 750 (3) Escape only---------------- ------------ 2,000 (b) Oaa masks, tnetudlng pesti cide gas masks-- (1) 3tugle hazard------------- -----------(2) Type N..... ...................................(e) SuppUed-alr respirators____ 1,100 4. 100 750 (d) Dust, fume and mist respi rators-- (1) Single particulate hazard hav ing an Air Contamination Level more than 0.05 mg./ m.* or 2 minion particles per cubic foot___________________ 600 (2) Combination particulate haz ards having an Air Contami nation Level more than 0.05 mg./m.* or 2 million par ticles per cubtc foot________ 750 (3) Particulate hazards having an Air Contamination Level less than 0.05 mg./m/ or 2 million particles per cubic foot, radon daughters____ 1.250 (4) All dusts, fumes and mists__ (e) Chemical cartridge respira tors _- I, ISO 2,000 (f) Faint spray respirators______ 1,600 (g) Pesticide respirators__________ 1,000 11.21 Examination, inspection and testing of respirator components or subassemblies; fees. Except as provided In 5 11.22, 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 *450 (b) Conlstera ______ (cl Cartridges..................... (d) Filters ................................. (e) Hoses ----------------------------------------- (f) Blowers ........... (g) Harnesses______________________ D00 000 Ci) 250 250 100 11.22 T*nli.;rcl for*; niidition.il fees; p:t> incut ly applicant prior to ap proval. (a) Applications for the examination, inspection and testing of complete respirator assemblies which are not listed in 9 11.20, or for the examination, in spection. and testing of respirator com ponents or subassemblies which are not listed in 11.21, shall be accompanied by the following deposits: (1) Complete respirator assem bly -------------------------------------(2) Each Individual component or subassembly_________--.... 31,500 soo <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 the cost of such examinations, inspec tions, or tests against the applicant prior to the issuance of any approval for the respiratory equipment examined, in spected, or tested. (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 race 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. Subparf D--Approval and Disapproval 11.30 Certificates of approval; scope 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 the minimum requirements set forth in Subparts H through M of this part, as applicable. (b) The Bureau and the Institute will not issue certificates of approval for any respirator component or for any respira tor subassembly. (c) The Bureau and tho Institute shall not Issue an informal notification of approval. However, if the apulication for approval, submitted ir. occordancf with 5 11.11, states that the submitter, respirator and component parts are only prototypes, the Bureau will examine, in spect. and test such respirator and com ponent parts in accord? ncc with the fSCIERAl REGISTER VOl. 37, MO. 57--SATURDAY, MARCH 2S, 197: CAPCO JEN 0005623 RULES AND REGULATIONS 6249 provisions of this Part 11. If, upon com respirator for which approval was sought required by the Bureau and the Institute pletion of such examinations, inspections with a view to the possible correction of to assure quality control and proper use and tests, it is found that the prototype any such defects. of the respirator, be labeled distinctly to meets the minimum requirements set (c) The Bureau and the Institute shall show the name of the applicant, and the forth in this part, the Bureau and the not disclose, except to the applicant or name and letters or numbers by which Institute may inform the applicant, in as required by statute or regulation, any the respirator or respirator component is writing, of the results of the examina data, findings, or oth'er information'with designated for trade purposes, and the tions. inspections, and tests, and may require him to resubmit respirators and respect to "any respirator for which a notice of disappoval is issued. lot number, serial number, or approxi mate date of manufacture. component parts made on regular pro duction tooling, with no operations In cluded which will not be Incorporated In regular production processing, for fur ther examination, inspection, and test ing. prior to issuance of the certificate of approval. (d) Applicants required to resubmit respirators and component parts made on regular production tooling, with no operation included which will not be Incorporated in regular production proc essing, shall be charged fees in accord ance with Subpart C of this part. g 11.33 Approval labels and markings; approval of contents; use- fa) 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 end 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 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. 11.31 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 wliich shall be met by the applicant during commercial production of the respirator. fd) 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 5 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 statute or regulation. <f) Each certificate of approval shall also contain the approved quality control plan as specified in i 11.42. 11.32 Notice of disapproval. 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 I.obet typo i/ocatlon Si'lf'Cor.f br<*V!'irc *pp,v En--tire.......... Finnic*'. assembly ami onni.tcr ratil*. (where applicable). Gasmask..., ... Entire.... .. Mask container and canister. Supplied* Ur rv*pi- Entire.... . Respirator container rator. or tiihtructlon c-ird. Dui-t. tum<\ amt Entire.... , R^pirator container ihm respirator. and filter con tainer. Abbrevi Filters. ated. Chemlcabcartrldce Entire......... Respirator con* respirator, Includ- tamer. cartrldM ln paint spray container, and respirator. filter containers (where appli cable). Abbrerl- Cartridges and ft]- ated. ters and filter containers. Fcstlclde respirator. Entire......... Respirator con- talner, and cor* ttidco and filter containers. Abbrerl- Cartridges and ated. filters. 11.35 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'-ation of the existing certificate to cover any proposed change. (c) The application shali 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 will be required. (3) The Bureau shall inform the ap plicant of the fee required for any addi tional testing and the applicant will be charged for the actual cost of any exami nation, inspection, or test required, and such fees shall be submitted in accord ance with the provisions of Subpart C of this part. (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 (a) If, upon the completion of the exiruinations. Inspections, and tests reliurod to be conducted in accordance provi.ior.s of this part, it is fo:;.'.-: -.nit the respirator dees not meet t':.e r.;u- ::ui:n requirements set forth in tins pari, the Bureau and the Institute shall issue a written notice of disapproval to the applicant. (b) Each notice of disapproval shall (f) The use of any Bureau and Insti tute approval label obligates tlie appli cant t; vhivn it Is issued to maintain or cause t.a in.v.niauv.-d t:>e 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 llic certi ficate of approval Is based. approval labels. 11.36 Delivery- of changed nr modified :i|i;nn\ed rr-pirntor. An approved r.-i-p-i ator .`or -. .. formal certificate of modification lias been issued shall be deli.ared, with proper markings and containers, by the applicant to the Bureau of Mines, Ap proval and Testing, 4800 Forbes Avenue, be accompanied by all pertinent data or (g) Each respirator, respirator com Pittsburgh, PA 15213, as soon as it is findings with respect to the defects of the ponent, and respirator container shall, as commercially produced. FEDERAL REGISTER. VOL. S7, NO. 5?--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005624 6230 RULES AND REGULATIONS Subpart E--Quality Control 11.10 Quality control plana, 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 wlilch 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; (5) 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 accorfance with procedures set forth in Military Standard MIL-STD-105D, "fcV.niphn g Procedures and Tables for Inspvcimn 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 --ny respiratory protection, o" a that reduces protection and is r.- J-- ccrab'.e by the user; (3 .:;' t B. A defect, other than Ma jor A ar cubical, that is likely to result in redu-vd respiratory protection, and is detectable by the user; and (4 ,a.'i"or. A defect that is not likely t-> materially reduce the usability of the rc.plraaor 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 II as described in MTL-STD-105D, 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 lower level of in spection than that specified in para graph (h) of this section. ll.i2 Propowd quality control plans; approval Iiy the Bureau ami the imli- Into. (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 ol res piratory protection provided by the respirator for which an approval Is sought. (b) If the Bureau and the Institute de termine that the proposed quality control plan submitted by the applicant will not insure adequate quality control, the Bu 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. g 11.43 Quality control record' 5 review Iiy the llttrcatt and the InMitnte; rev ocation of approval. (a) The applicant shall keep quality control ir.sf.?c!:on records sufficient to carry out the procedures required in MZL-SrD-iO-tD or MIL-STD-4 i 1, 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, equipmenr, 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 types 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 G 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, (b> Escape only. Respirators designed and approved for use only during escape from a hazardous atmosphere. 11.52 Rc>piratcry liarard-; cl.i--ifira- tion. Respirators described in Subparts H through M of this part shall be classified as approved for use against any or all of the following respiratory hazards: (a) Oxygen deficiency; <b> 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 following 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) Five minutes; (10) Three minutes. (b> Other sendee times may Ire pre scribed by the Bureau and chs Ii'..':'u:o. Subpart G--General Construction and Performance Requirements 11.60 Construction nml performanc rcMfuiremeiits; 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 CAPCO JEN 0005625 RULES AND REGULATIONS 6251 o.' this pan which have ir.et the mini mum requirements set forth for such respirators in this Part 11. (b> In addition to the types of respira tors specified in Subparts H through M, tiie 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 5 11.63(c). 11.61 General coni-action require ments. (a) Respirators will not be accepted by the Bureau for examination. Inspec tion and testing unless they are designed on sound engineering and scientific prin ciples, constructed of suitable materials and evidence good workmanship. (b) Respirator components which come into contact with the wearer's skin shall be made of nonirritating materials. (c) Components replaced during or after use shall be constructed of mate rials which will not be damaged by nor mal handling. (d) Mouthpieces, hoods, helmets, and facepieces, except those employed in sin gle-use respirators, shall be constructed of materials which will withstand re peated disinfection as recommended by the applicant in his instructions for use of the device. (e) The components of each respira tor approved by the Bureau and the In stitute for use where permissibility is re quired shall meet the requirements for permissibility and intrinsic safety set forth in Part 18, Subchvpter D of this chapter (Bureau of Minos Schedule 2G). 11.62 Component part-: minimum rc- qulromrnts. (a) The component parts of each respirator shall be: 11 > 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. fb) 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 Subparts H through M of this part. (b) Where a combination respirator is assembled from two or more types of respirators, as described in this part. the individu.-.l .-...ir-tor typos n.y.e boon combined shall, us : ' ...T-b'.e. meet the mb ir.-.um require> ;r.:s :or such respirators sot forth ir. Sut.na.ts H through M of tiiis part, and - f'.; Cvinbination respirators, except as in 11.70(b)(2), wlH be classi fied by the type of respirator in the com bination which prorides the least pro tection to tiie user. (c) In addition to the minimum re quirements set forth in Subparts H through 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 tiie reasons for such requirements, ex aminations, Inspections, or tests. 11.61 Pretesting by applicant; ap- prov.ii of teat methods hy 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 stave that the respirator meets the minimum requirements of Subparts H through M of this part, as applicable. Complete examination, in spection. and tost data shall be revained on file by the applicant and be sub mitted, upon request, to the Bureau. (ci 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 wifi not issue an ap proval to the applicant until it has veildated the applicant's test results. 11.63 Conduct jf examinations, in spections, and tests hy the Bureau and titc Institute; assistance by applicant: observers; recorded data; public, demonstrations. (a) All examinations, inspections, and tests conducted pursuant to Subparts H through M of this part will be under the sole direction and control of the Bureau and the Institute. (b) The Bureau and the Institute may, as a condition of approval, require the assistance of the applicant or agents of the applicant during the assembly, dis assembly, or preparation of any respira tor o.- respirator component m ior to test ing or in the operation of such equip ment dsirin'* testing. ci OX.i Bureau .'lid Institute p>r_- nol. pe.yr.ns assisting the B'lreru pur suant to paragraph (b) of this section, and such other persons as arc requested by the Bureau, tiie Institute, or the appli cant to be observers, shall be present dur ing any examination, inspection, of 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 tiie fees submitted, the Bureau shall refund the balance together with a statement of the charges made for services rendered. Subpart H--Self-Contained Breathing Apparatus 11.70 Self-contained breathing appa ratus; description. (a) Self-contained breathing appara tus, including all completely assembled, portable, self-contained devices designed for use as respiratory protection during entry into and escape from or escape only from hazardous atmospheres, are de scribed as follows: (1) Closed-circuit apparatus. An ap paratus of the type in which the exhala tion Is rebreathed by the wearer after the carbon dioxide has been effectivcly 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 to the immediate environment is p-.Mti-e cl::ri:; q exVu.'.a- Gon and negative during (si) rressure-dement'-type, r; pr.*a.'vs. An apparatus in which the pressure in side tiie 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. 59--Pt. n- FEDERAt REGISTER, VOl. 37, NO. 59--SATURDAY, MARCH 25, T972 CAPCO JEN 0005626 6252 RULES AND REGULATIONS use during emergency entry Into a haz ardous atmosphere: A combination respi rator wliich Includes a self-contained breathing apparatus and a Typo "C" or Type ``CE'' supplied air respirator, where (1) 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. Cd) Self-contained breathing appara tus classified for less than 30 minutes' service time will not be approved for use ns auxiliary equipment during un derground mine rescue and recovery operations. 11.71 Sclf-conluined breathing appara tus; required components. () Each self-contained breathing apparatus described in 5 11.70 shall, where its design requires, contain, the following component parts: (1) Facepiece or mouthpiece, and noseclip: 12) Respirable breathing gas con tainer: (3) Supply of respirable breathing gas; (4) Gas pressure or liquid level gages; t5> Timer; () Remaining service life indicator or v. aiming device: (7) Hand-operated valves; (8) Breathing bag: (9) Safety relief valve or safety relief system; and (10) Harness. Co) The components of each. selfcontained breathing apparatus shall meet the minimum construction require ments set forth in Subpart G of this part. . 11.72 Breathing tiibcs; minimum re quirements. (a) Flexible breathing tubes used in conjunction with breathing apparatus shall be designed and constructed to prevent: (1) Restriction of free head move ment; (2) Disturbance of the fit of facepieces and mouthpieces; (3) Interference with the wearer's ac tivities: and. (4) Shutoff of airflow due to kinking, or from chin or arm pressure. * *. * ll.'rnr-.e-; In-tnll.itiim ::iul r..*i. -Pom: minimum requirement*. : Tach apparatus shall, where nec essary. lie equipped with a suitable it a me <3 designed and constructed to hold the components of the apparatus in po.-tiion against the wearer's body. b) Harnesses shall be designed and constructed to permit easy removal and i .~.-:i:cnt of apparatus parts, and. where applicable, provide for holding a full facepiece in the ready position when not in use. 11.74 Apparatus containers; minimum requirements. (a) Apparatus may be equipped with a substantial, durable container bearing markings which show the applicant's name, the type and commercial desig 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 Half-majk 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 the 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 noscclips 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; cscpicees; mini- mum requirements, (c.) 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. Tnis Federal Specification is available from the Government Printing Office 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 in flurare, urrt (2) Designed a.td constructed to pre vent inward leakage of contaminated air. 11.70 Head ha-ne--e-: iiiiuiinuni re quirements. (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 with 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 re quirements. (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 njs. 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 assem blies^ any apparatus or respirator com ponent which is designed or constructed to permit the interchangeable .use oxygen and air. 11.0 Compressed breathing env 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 Inlet Connections, E57.1 (1365), obtain able from American National standards Institute, Inc., 1430 Broadway, New York, NY 10018. 11.81 Gas pressure gages: minimi! requirements. (a) Gus pressure gages employed o:i compressed breathing gas containers shall be calibrated in pounds per square inch. FEOtRAL REGISTER, VCL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005627 RULES AND REGULATIONS 6253 fb) Liquid-level gapes shall be cali brated In fractions of total container capacity, or in units of liquid volume. fc) Gas pressure gages other than those specified in paragraphs (a) and (b) of tills section shall be calibrated in: (1) Pounds per square inch, or (2) In fractions of total container capacity, or 13) Doth 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) Tire full scale graduation of dial- indicating gages shall not exceed 150 percent of the maximum rated cylinder pressures specified for the container in applicable Department of Transportation specifications or permits. re) (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, one- half. three-quarters, and full. <3> Stem gage readings shall not vary from true readings by more than oncsixteenth inch per inch of stem travel. <f> Tlie loss of gas through a broken gage or severed gage connection shall noc exceed 70 liters per minute when the cylirdvr pressure is 6.900 fcN rn.: '1.000 pounds per square inch gage) or when the iiq'ud level is at one-half. <g) Where gages are connected to the ap" '.rains through a gage iine. the gage and line shall be capable of being iso lated from the apparatus except where the failure of the gage or line would, not impair the performance or service life of the apparatus. (h) Oxygen piessure gages shall have the words, "Oxygen" and "Use No OU," maiked prominently on the gage. fi) <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 ? visible gage. 5 1 '.32 - Timer-: r-!npcd time indicator*: life niin- r.-qnirrmrnt-. - E: time indicators shall be p.o'.niid fc.r apparatus with a chemical ox'-'.-w source, except: i' Apparatus used for escape only; or. <?' Liquefied breathing gas apparatus equipped with gages visible to the wearer which Indicate the remaining liquid con tent in the container. (b) 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. Ce) 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. (f) Each remaining service-life indi cator or warning device shali 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. (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 in the event of a failure in the valve,or system. 11.84 Breathing bags; minimum re quirements. (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 Self-contained breathing appa ratus; performance requirements; general. 11.03 Hand-operated valve.*; minimum Self-contained breathing apparatus requirements* and the individual components of each (a) Hand-operated valves shall be de such device shall as applicable meet the signed and constructed to prevent re moval of the stem from the valve body requirements speoified tlirough 11.85-19. in 5J 11.85-1 during normal usage to Insure against 11.85--1 Component parts exposed to a suc'den release of the full pressure of the container when the valve is opened. oxypen prcsurcs; minimum require* mentfl. fb) Valves shall be designed or posi tioned to prevent accidental opening and closing, and damage from external forces. ic1 Valves operated during use of the apparatus shall be Installed In locations where they can be readily adjusted by Each applicant shall certify that the materials employed in the construction, of component parts exposed to oxygen pressures above atmospheric pressure are safe and compatible for their intended use. the wearer. 11.85--2 Comprc-sed ga* filters; mini <d> Ma.n-Uno valves, designed and mum requirements. constructed to conserve gas in the event of a regulator or demand valve failure, shall be provided in addition to gas con tainer valves, except when such failure All self-contained breathing apparatus using compressed gas shall have a filter downstream of the gas source to eectively remove particles from the gas will not affect performance. stream. ie> Hand-operated bypass systems designed and constructed to permit the 11.85-3 Breathing hag test. wearer to breathe and to conserve his (a) Breathing bags will be tested in an gas supply in the event of a regulator or air atmosphere saturated with gasoline demand valve failure, shall be provided vapor at room temperature <24*-30` C./ where necessary. 75*-85* P.) for a continuous period of (f) Valves installed on apparatus shall twice the rated time of the apparatus be clearly distinguishable from one (except for apparatus for escape only another by sight and touch. where the test period shall be the rated (g) The bypass system valve control time of the apparatus). shall be colored red. <b) The bag will be operated during <h) A main-line or bypass valve or this test by a breathing machine with system will not be required on apparatus 24 respirations per minute and a minute- for escape only. volume of 40 liters. (i) Safety relief valves or systems, de (c) A breathing mactune cam with a signed and constructed to release excess work rate of 622 kg.-m./min. will be pressure In the breathing circuit, shall used.1 be provided on closed-circuit apparatus, artd shall meet the following requiroir-ents: <d) The air within the bag(s) shall not contain more than 100 parts per mil lion of r.-.asolia v i-'.or r.t fine ei:i ; - >1' The relief valve or system shall test. operate automatically when the pressure in the breathing circuit on the Inhala tion side of the breathing bag reaches 13 mm. fone-half inch) water-column height of pressure above live minimum pressure required to fill the breathing bag. within the breathing resistance re v Silverman. L,, G. Lee, T. Piotkin, L. Amory, and A. R. Yancey. Fundamental Factors In Design of Protective Equipment. O.S.RD. Report No. 5732. Issued Apr. 1. 1PJ5. The dimensions of the breAthtr.g machine cam ore available from the Dureau upon quirements for the apparatus. request. FE02S.U REGISTER, VOt. 37, NO. 59--SATURDAY. MARCH 25, 1972 CAPCO JEN 0005628 G254 RULES AND REGULATIONS 11.83--4 Weight requirement. demand-apparatus is lowered by 51 mm. (5) A concentration of 5 percent (c. '.to completely assembled and full;- irged apparatus shall not weigh more .-.an 16 kg. (35 pounds): however, where 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. 11.85--5 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 5 11.85-3. (b) The inhalation resistance of opencircuit apparatus shall not exceed 32 mm. (1.25 inch) water-column height (at a flow rate of 120 liters per minute). (c) The inhalation resistance of closed-circuit apparatus shall not ex ceed the difference between exhalation resistance ( U.85-6(e)) and 10 cm. (4 inches) water-column height. 11.85--6 Breathing resistance test; ex halation. la) Resistance to exhalation airflow will be measured in the facepiece or mouthpiece of open-circuit apparatus with a:r flowing at a continuous rate of (2 inches) water-column height when full container pressure Is applied. (c) Where pressure demand appara tus are tested, the flow will be measured at zero gage pressure in 'lie facepiece. (d> Where apparatus with com pressed-breathing-gas containers are tested,* the flow test shall also be made with 3,450 kN/mJ (500 p-s.l.g.) container pressure applied. 11.85-9 Cas flow lest; 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. (c) 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 lest; 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 5 11.53. carbon dioxide in air will be exhaled Into the facepiece. (b). Closed-circuit apparatus: (1) The concentration of carbon di lde in inspired gas in closed-circuit apparatus will be measured at the mouth while the parts of the apparatus con tributing to dead-air space are mounted on a dummy head and operated by the breathing machine as in paragraphs (a) (1) through (5) of this section. (c) During the testing required by 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 portion of the breathing cycle shall not exceed the following limits: Maximum allowable average concentration Where the service of carbon dioxide in inspired air, time is; percent by volume Not r.ioro than 30 minutes____________ z. s 1 hour 2.0 3 hours l.s 3 hours i. o 4 hours____ ____________________ l.o (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 si* not contain more than 0.5 percent c<. bon dioxide at any time. 85 liters per minute. 11.85--11 Service time test; closed-cir (b) . The exhalation resistance of de cuit apparatus. 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. (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 5 11.53. 11.85--13 Tests during low tempera ture operation. (a) The applicant shall specify the minimum temperature for sale opera tion and two persons will perform the tests described In paragraphs (c) and (d) of this section,* wearing the appa ratus according to applicant's directions. At the specified temperature, the appa ratus shall meet all the requirements de scribed In paragraph (e) of this section. (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. 11.85--12 Test for carbon dioxide in inspired gas; open- and closed-circuit apparatus; maximum allowable limits. (a) Open-circuit apparatus: (1) The concentration of carbon dioxide In Inspired gas in open-circuit (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. 11.85--7 Exhalation valve leakage test. apparatus will be measured at the mouth while the apparatus mounted on a (d) During the tost period, alternate 1-minute periods of exercise ard rest will (a) Dry exhalation valves and valve dummy head Is operated by a breathing be required with the exercise periods seats will be subjected to a suction of machine.' consisting of stepping onto and off a 25 mm. (1 Inch) water-column height while in a normal operating position. (b) Leakage between the valve and the valve seat shall not exceed 30 milli liters per minute. . It..*"-!) Ca- fl*'"*' t.*-:: oji'ii-ri.vi.ii :l.:- , .'I .`.In*. (2) The breathing rate will be 14.5 respirations per minute with a minutevolume of 10.5 liters. (3) A sedentary breathing machine cam wiil be used. (' The apparatus will b tested at a temperature of 27*ri2* C. (CO'rio' F.). box 21.5 cm. (8'/i inches) high at s. rate of 30 cycles per minute. (e) (1) The apparatus shall function satisfactorily at the specified minimum temperature on duplicate tests. (2) Tiie wearer shall have su.Tcicr.t uno'oscured vision to perform the work. (.-.' A static-flow test will be perfc raied na ail open-circuit apparatus. fbi The flow from the apparatus shall yi-'-iier than 200 liters per minute ' Kloos. E. J,, and J. Lamonic.i. A MaclilceTest Method for Measuring Carhon Dioxide In the Inspired Air of Self-Contained Breathing Apparatus. Bureau of Mires Report of In (3) The wearer shall not experience undue discomfort because of airflow re striction or other physical or cheinlc changes Ln the GDeration of the .-'icn tli.: pressure In the facepiece of vestigations 6065, 1060, 11 pp. apparatus. Fiete-M REomsR, vol. 37, no. s?--Saturday, march 25, 1972 CAPCO JEN 0005629 RULES AND REGULATIONS 6255 (Ci Auxiliary low-temperature parts (3) Evaluate the apparatus under dif 11.85-18 Man tc-ti.; prrform.titrc re whirl* are commercially available to the ferent types of work and physical ori quirement?. user may be used on. the apparatus to meet the requirements described in par agraph (c) of this section. 11.It5-1-l Man IC'Hi testing condi tions; general requirements. (a> The man tests described in Tables 1. 2, 3, ar.d 4 represent the workload per formed in the mining, mineral, or allied industries by a person wearing the appa ratus tested. (b) The apparatus tested will be worn by Bureau personnel trained in the use of self-contained breathing apparatus, and the wearer will, before participating entation; and (1) Provide Information on the op erating and breathing characteristics of the apparatus during actual use. 11.05--16 .Man Ic?t 5; requirement?. (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 silting at rest. (b) The wearer .vill manipulate the devices controlling the supply of breath ing gas to the advantage of the apparatus. (a) Tiie apparatus shal1 satisfy the respiratory requirements of the wearer for the classified service time. (b) Fogging of the eyepiece shall not obscure the wearer's vision, and the wearer shall not experience undue dis comfort because of fit or other charac teristics of the apparatus. (c) When the ambient temperature during testing is 24* 6* C. (75'iio* 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.): ` in these tests, pass a physical examina (c) Samples of inspiration from within tion conducted by a qualified physician. (c) All man tests will be conducted by the Bureau. (d) The apparatus will be examined before each man test to ensure that it is in proper working order. (e) Breathing resistance will be meas ured within the facepiece or mouthpiece and the wearer's pulse and respiration rate will be recorded during each 2 min ute sample period prescribed in tests 1, 2, 3, and 4. (f) Man tests 1. 2. 3. 4, 5, and 6 will be conducted in duplicate. Cg) If man tests are not completed through no fault of the apparatus, the test will be repeated. 11.85--15 Man tests 1, 2, 3, and 4; the apparatus facepiece or mouthpiece shall be taken once every 15 minutes, and shall meet the minimum requirement for oxygen specified in 5 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 tc-l fit requirement?. (a) Man test 6 will be conducted with respect to liquefied breathing gas appara tus only. <b) This test will be conducted to eval uate operation of the apparatus in other than vertical positions. <c) The wearer will lie face downward vi*e life of ar par tu.< is- - Where percent rel-.tiv Msilitx!.l*mtuuim*| .f-rrvmuri?tk* humidity o inspired uir of fll ill not 'tedeaedir -- U-- F. c. ! Liuror !...... i 5l"ur io hour... 1 to 2 lnurs............ 3 horns.................. 4 hours........... . IWC* 0-50 M.VW-MmJO.tit .V0-M5*.1O H3*i 30*100 133 125 t 1M 115 l p.j IP) l p>> M3 !?3 s: 32 *O 4<13 ;i 3j 1 When* percent relative IminMitj* Is vvl appa- ruu* Is d* turned fop euripe only. tli*s<s maximum r*r* mv-sililf i**!iijH nttuffs will be incuusi'd by S' C.i K.J. 11.33--19 Gas tisMuc-** lest; minimum requirement requirements. for orie-fourth the service life of the ap- (a' Each apparatus will be tested for (a) Man tests 1, 2, 3. and 4, set forth par.nus with a full ch.nge of liquefied tightness by persons wearing it in on in Tables 1. 2. 3. and 4 respectively, pre breathing gas. and then a one-quarter atmosphere of 1,000 p.p.m. Steamy! scribe the duration and sequence of spe cific activities. These tests will be conducted to: (1) Familiarize the wearer with the full charge of liquefied breathing eas. idi Tiie test will be repeated with the wearer lying on each side and on his oack. acetate. (b) Six persons will each wear the ap paratus in the test concentrations spec apparatus during use: (e) The oxygen content of the gas sup ified in paragraph (a) of this section (2) Provide for a gradual increase in plied to the wearer by the apparatus will for 2 minutes and none shall detect the activity; be continuously measured. odor or taste of the test vapor. T\i'ir i,~ PfK\Ti Skncrvce nr ' ? Cil r ir- a.-tivities tor Test 1. In Minutes CFR P irt 11. 5u5 p rt If. \ tl.sS, et s<*q.) Activity 3 :r.tout>s 3 minutes Service tlne~ 10 minutes 13 minutes 30 minute* 43 minutes l hour 2,3, and 4 lours Sampling an*! reading*, 2 2 2 2 Perform I hour test 2,3. or 4 Walk* it 43 km. (3 miles) per hour.............................. 3 334 times respectively. S 12 18 Sampling and reading*................................................................... 22 Walks at 4.4 krn. 13 miles) per hour................................................... 3 8 12 18 Sampling and readings...................................................................... Walks at 4.8 km. (3 miles) per boor........ ................................... 2 26 2 13 2 16 Sampling and readings...................................................................... 222 FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005630 6256 RULES AND REGULATIONS Table 2.--Duration aw Sequence or Sfscute Act:tit5 ro Test 2, Of Minutes (30 CFR Port 11. Subpart H, f 11.83. t seq.) Activity 3 minutes 6 minutes 10 minute Service Time-- 15 minutes 30 minutes 45 minutes 1 hour 2,3 and 4 hour* PirrpJJns ond ridings....................................................... Walks a: 4.fkm. <3mi13>perhour....................................... Carrie 23 kg. (50 pound) weight over........................... 07* rc'.*t. Walks at 4.3 km. (3 miles) per hour....... ........................ Climbs vertical treadmill* (or equlva- 1.....................1. tout). . Walks at 4.8 km. (3 miles) per hour..................................* Climb* vertical treadmill (orequivalent)...........................1. Sampling and readings......................................................... V. &lks nt 4.S km. (3 miles) per hour....................................... Climbs vertical treadmill tor equivalent)............................. Carvb-i 23 kg. (50 pound) weight over............................ overcast. Sampling and readings..... ................................................. Walks at 4.8 km. (3 miles) per hour. ............................ Climbs vertical treadmill (or equivalent)............................. Walks at 4.8 km. (3 miles) per hour. ............................ CUmhs vertical treadmill for equivalent).............................. Carr! *3 20 kg. (15 pound) weight andi 1......................... walks a*. 4 4 fcsa. (3 miles) per hour. Walks ot 4.3 km. n miles) per hour. 1.................... 2. Sampling and readings........................... ............................ .1..............................12........................ 1 time In 3 1 time In 2 ....m..i.n..u.t.e..s....... 1...m...in..u..t.e.s... I..................I............ . 1................................ . 11...................... I time In 2 minutes. 2. 1. T *.........................2....................... 2......................... J. 3.......................4................... . 6....................... 10. 2 times In 4 3 times la 6 4tlra*sln5 5 times In 10 minutes, minutes. minute*. minutes. 3........................ 3....................... 3.........................8. 221............................... 3 times in a minutes. TiM..Y..Y....Y....I.Y... 21.................t... 31............................ illmesloft 2.m..i.n.u.t.e.s.. 31............................. 1. 3............. 21............................. 61................................. 5 times in 10 2.z.n..lo.u.t.e.*... 3................. 1................... 3................. 21........................ 5. 2111.. . 1. 5 times In 10 minutes. 2. Then repeat above activities once. 2. 2. i Total tot tin* tor T.'st 2 tor 2-hour. 3-hour. nnd 4-hour apparatus Is 2 hours. * Tr-> i l:Mll shall be Inclined IS* from vertical and operated at a sp*ed of 1 tout per second. Table 3.--Duration and Sequence o Srscmc Activities tor Test 3, In* Minutes (30 CFR Part 11, Subpart If, J 11.85, etseq.) Activity 3 minutes 5 minutes 10 minutes Sampling and readings...............i....................................... Walks at 4.S km. <3 miles) per hour.................................... ..................... 1. Hurts at 2.7 km. (6 mi!*s) per hour..........1......................... Pulls .v kg. (45 pound) weight to 5 feet............................. 15 times In l ... I.t`S OR Sid*................................................. );..................... Ll*s or. bvk....................... .......................i't.................. . Crawls on hands and knees.....................I......................... 1..m..i.n.u..t.e.......... 1, 1.................. 1. 1......... .-......i. Satr.ph: a -.t*.d t. vijpgs......................................................... Kun* &tk:u. .) per hour..................................... WaA* <t' km. *3 m:les) per hour.................................... Tulls 2/ kg. (45 pound) weight to 6 feet............................. 30 times in 2 minutes. Sampling and readings......... ............................................... Walks st 4 g km. (3 miles) per hour.................................... 1. Lies on side........... ............................................................... Lies on back.................. .............. ...................................... Sampling and readings......................................................... Service time-- 15 minutes 30 minutes 45 minutes 1 hour 1....................... 22.................... 3dVlmesTnV*' 33 times In V 222...m......i...n...u...t...e...s............. minutes. 32.............................. 22........................ 1. 21.............................. 60 times In 6 minutes. 3. 2. 22....................... 30 Umes'lnV minutes. 4................... 322.......................................... 8I................................ 60 times tn 6 minutes. 4. 2. 2. 2........ 3............... 60 times In minutes. 5................... 232....................................... 11.0........................... 60 times In 6 210.m....i..n..u..t.e...s..... 412........................................... 2,3 and 4 hours > Perform test No. 3 for 1 hr. appara tus; (ben perform test No. 1 tor 1 hour apparatus. t Total test tim* tor Test 3 tor 2-hour, 3-hour, and 4-bour apparatus is 2 hours. rSOESAl REGISTER. VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005631 RULES AND REGULATIONS TaDLX 4.--DpruTlOtf AND StQUANCX or SrXCOTC AcnvniEX FOX TE.4T 4, lx MlSCTKS (SI CPU Part It, Sabput Jt, I lt.33, otsraJ Acuity . Servloe time-- 3 mlnatee 5 minutes 10 mlauUs 13 minutes 30 minutes <3 minutes 1 hour ** l'ulls si kg. (45 pvund) weight to 3 r<i. Cirri- *!J kg. (30 j>ouad) wdgnt c%*i r o** re.tit. 30 times in 2 minutes. In 2 minutes. In 2 * minutes. In 6 minutes. in 6 minutes. in ft minutes. 1 min* ut*. 1 min ute. 3 min utes. S min utes. 2 hours No. 1 for 30minute apparatus; then perform tost No. 4 apparatus; then perform for 30-min ute appara tus. 6257 3 hours 4 hours No. 1 for l* hour appara tus; then per form test No. 1 for lhour appara tus; then per form test No. 1 for 1'hour apparatus. Perform test No. 1 for 1hour appara tus; tnn per form test No. 4 for l* hour app-uv tus; then per form test hour appara tus twice (l.e.. tiro one-huur tests). C .rr:.*- .'I(50 pound) weight over uv-rcisi. .'O kg. (U pound) Wright to 3 IS times i`. ct. i:i l minute. f.t. n ulo hour. t.S km. i3 miles) [> r 1 ti:n* In 1 min ute. 1 timo In 1 tnlii* 3 tim*s in 3 min 4 tinvs In 0 min ft t0immeisnin ut*. utes. ute*. utes. in l In 5 in 2 In 3 minute. * minutes. minutes. n minutes. in 5 In ft minutes. minutes. * i Tr* i-licill shall be Inelitivl 15* from vertical and operated at a -1*'' I of 30 cm. (I footl p-T second. Subpart I--Gas Masks 11.90 Gas nia-ks; ctcfrriptinn. 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: tl) 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 gas mask. A gas mask which consists of a full facepiece, a can ister which is usually attached to the facepiece, and associated connections. (4) Escape gas mask. A gas mask de signed for use during escape only from hazardous atmospheres which consists o'. ,i 1. f-mask facepiece or mouthpiece, a railidler, and associated connections. iii Gas masks shall be further de scribed according to the specific gases or vapors against which they are designed to provide respiratory protection, as follows: Type of front-mounted or back- m'.nnted gas mask: Acid gas * * Ammonia' -- Carbon monoxide -------------------------Organic vapors'* *------------------------- 2 3 2 *2 Maximum use concentration, per cent by volume Type it chin-style gas mask: Acid gas'-4 *0.5 Ammonia Organic vapors '4-- .5 . 5 Maximum use concentration, parts per million Type of escape gas mask: Add gas'-. '1,000 Ammonia 4 6,000 Carbon monoxide ___________ 10.000 Organic vapors * > ______ ___ 5,000 > Approval may be for acid gases or organic vapors as a class or for specific add gases, ammonia, or organic vapors. Approval may also be granted for combinations of acid gases, organic vnpors, and other gnses and vapors. 4 Not for use against ecl-.l gases or organic vapor.-, v, ith poor warn1, i mpcrtles or which generate hl-dr heats r.ncMon with sor bent materials In the . ;i..stcr. * Suggested maxlr:".:: use concentrations arc lower than these lor some acid gases and organic vapors. 4 Eye protection may be required In certain concentrations of add gases, ammonia, and organic vapors. (c) Gas masks for respiratory protec tion against gases and vapors other than those specified in paragraph (b) of this section may be approved. The applicant shall submit a request for approval, in writing, to the Bureau of Mines. Approval and Testing, 4800 Forbes Avenue. Pitts burgh, PA 15213, listing the gas or vapor and suggested maximum use concentra tion for the specific type of gas mask. The Bureau and the Institute will con sider the application and accept or reject the application on the basis of effect on the wearer's health and safety and any field experience in use of gas masks for such exposures. If the application is ac cepted the Bureau will test such gas mask in accordance with the requirements of this subpart. 11.91 Cas masks; required compo nents* (a) Each gas mask described in 5 11.90 shall, where its design requires, contain the following component parts: (1) Facepiece or mouthpiece and noseclip; (2) Canister or cartridge: '3i Canister harness: (43 External check valve: ar.d (5) Breathing tube. (b) The components of each gas mask shall meet the minimum construction re quirements set forth in Subpart G of this part. FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005632 6258 RULES AND REGULATIONS 11.92 Canisters and cartridges in par allel; resistance requirements. Y/here 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: Sriintuv IUsuTAScx (mm. watar-aoltmn baijht) 11.93 Canisters and cartridges; color mask. and markings; requirements. (c) Half-mask facepieces shall not in InbatstfoQ 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 lot* Final1 latloa 11*1 form with the requirements of the Ameri can National Standard for Identification of Gas Mask Canisters, K13.1, obtainable from American National Standards In stitute, Inc., 1430 Broadway, New York, NY 10018. 11.94 Filters used with canisters and cartridges; location; replacement. (a) Particulate matter filters used in Bureau's facepiece tests in i 11.102-3. (d> Gas masks with mouthpieces shall be equipped with noseclips which are securely attached to the mouthpiece or gas mask and provide an airtight seal. (e) Facepieces shall be designed to prevent eyepiece fogging. 11.99 Facepieces; eyepieces; minimum requirements* Fraat-mountal or bsck-snountad (without paitlculata filter)........ SO Front.raouutod or back-mounted (with approved particular altar)......................................... 70 Chtn-stria (without particular filter)--.............................. so Chln-styla (with approved partio* u]ato alter)........................... S5 F.scap* (without paitlculata filter).. SO, Escape (with approved particular filter).......................................... . 70 75 0) S3 70 5s so so so 75 20 65 SO* 2 3 4 conjunction with a canister or cartridge shall be located on the inlet side of the canister or cartridge. Cb) Filters shall be incorporated in or firmly attached to the'canister or car (a) Full facepieces shall be designed and constructed to provide adequate vision which Is not distorted by the eye piece. (b) All eyepieces shall be designed and t Meamred at end of the service Ufa specified In Tobies 6,6, and 7. 11.102--2 Exhalation valve leakage test. tridge and each filter assembly shall, constructed to meet the impact and <a) Dry exhalation valves and valve where applicable, be designed to permit penetration requirements specified In -seats will be subjected to a suction of 25 Its easy removal from and replacement Federal Specification, Mask, Air Line: mm. water-column height while in a in the canister or cartridge. 11.95 Breathing tubes; minimum re quirements. (a) Flexible breathing tubes used in conjunction with gas masks shall be de signed and constructed to prevent: and Respirator, Air Filtering. Industrial, GGG-M-125d, October 11, 1965. 11.100 Inhalation and exhalation valves; minimum requirements. (a) Inhalation and exhalation valves shail be provided where necessary and 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. (1) Restriction of free head move protected against damage and distortion. (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 a. (3) Interference with the wearer's tridges. canisters, and filters. facepiece size or sizes for the gas m activities: and, (c) Exhalation valves shall be pro together with the approximate measn., - (4) Shutoff of airflow due to kinking, tected against external influence, and ments of faces they are designed to lit. 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 gas mask shall, where necessary, be equipped with a suitable harness designed and constructed to hold the components of the gas mask In posi tion against the wearer's body. (b) Harnesses shall be designed and constructed to permit easy removal and replacement of gas mask parts, and where-applicable, provide for holding a full facepiece In the ready position when not in use. ward leakage of contaminated air. 11.101 Head harnesses;-minimum rcquircincnts* Ca) 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 5 11.102-4. (e) (1) Each wearer will enter a cham ber containing 100 p.p.m. 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 Cas masks; performance re quirements; general. Gas masks and the individual- com ponents .of each such device shall, as appropriate, meet the requirements for performance and protection specified In the tests described in 5 11.102-1 through 11.102--5. vapor for a half-mask facepiece and 1.000 p.p.m. isoamyl acetate vapor for a full facepiece or mouthpiece. (2) The facepiece or mouthpiece may be adjusted, if necessary, in the test chamber before starting the tests. (3) Each wearer will remain in the chamber for 8 minutes while performing the following activities: (b) Containers for gas masks shall 11.102--1 Rrcnthing resistance test; (1) Two minutes, nodding and turn be designed and constructed to permit minimum requirements. ing head; easy removal of the mask. 11.'>3 Half-made facepiece*, full face;.avcs anti mouthpieces; lit; minini'im requirements". (a) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial (a) Resistance to airflow will be meas ured in the facepiece or mouthpiece of a gas mask mounted on a breathing ma chine both before and after each test conducted in accordance with 5 11.1023, 11.102-4, and 11.102-5, with air flow (ill Two minutes, calisthenlc arm movements; (lit) Two minutes, running In place, and (Iv) Two njlnutes, pumping with a tire pump Into a 28 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--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005633 RULES AND REGULATIONS G259 11.102--4 Dust, fume, mist, and smoke test*; canister* containing filter*; minimum requirements. Table 3.--CAKianm Bench Teats and Requirements to* Front and Back-Mounted Oas M ur Canisters * (30 CF R Part U, Snbpart I, 1 11.102-5) sss (a) Gas mask canisters containing filters for protection against dusts, fumes, mists, and smokes in combination with Rases, vapors, or gases and vapors, will be tested as prescribed in 9 11.140. (b) Gas mask canisters designed for protection against smokes will be tested in an atmospheric concentration of 100 micrograms of dioctyl phthalate per liter of air at continuous flow rates of (1) 32 liters per minute, and (2) 85 liters per minute for a period of 5 to 10 seconds, and the OOP leakage through the canis ter shall not exceed 0.03 percent of the test concentration. 11.102-5 Canister bench test*; 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*db2.5* 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 6-1 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 Canister type Test condition Teat atmosphere Oa* or vapor Concentra tion, p.p.m. Flow rate, Ipjn. Maximum allowable Number penetra Misneirmviucem of tion, lire, tests p.p.m. minutes* Aetdgas....*............As received.. Equilibrated. Organic vapors......... As received.. Equilibrated. Ammonia............... As received.. Equilibrated. Carbon monoxide... As received.. Type N.................... As received Equilibrated. Cit KOi . 80s cu NOs - ecu . ecu . NH . NHi . CO CO CO . SOs cu eNcOus N*r, CO CO CO . SO cu NOs ecu Nils 20,000 20.000 20,000 20,000 20,000 20,000 20.000 20. COO 30,000 30,000 20,000 6,000 3.000 20,000 20.000 20,000 20,000 30,000 20,000 5,000 3,000 20,000 20,000 20,000 50.000 30,000 64 64 64 32 32 32 64 32 64 32 64 <32 32 64 64 64 64 64 61 <32 >32 32 32 32 32 32 35 35 3S 46 45 46 3 4 &6 3 80 4 (4 2o 3 O) 3 3 <7 6. 35 36 36 3 0 2 3 <*> 3 (*) 4s 46 48 46 4 60 U12 12 1122 12 12 12 12 6 6 6fftt CO 60 CO f6ftt 6 6 t Minimum Ufa will be determined at the Indicated penetration. > Relative humidity of t*st atmosphere will be 95db3 percent; temperature of teat atmosphere will he 252.5*C. i Maximum allowable CO penetration will be 3S5 cc. during tbe minimum lUe. The penetration shall not exceed 00 p.p.m. Uurtnz this time. < Relative humidity of test atmosphere will bo 953 percent; temperature of test atmosphere entering the test fixture a 111 be 0+2.6* C.-O* C. Table 6.--Canister Bench Tests and Requirements foe CmKSmt Gas Mass Canisters (30 CFR Part 11, Subpart I, 11.102-4) Canbter type T*-st condition Tost atmosphere --................... ---.i. -- -- Gas Con^ntra* Flow or tlou, rate, vapor p.p.m. l.p.m. Maximum Number allowable Minimum of peneira- serejo* tats tion, lire, p.p.ra. mlrutt*1 Acid gis....................As received..................EOs Equilibrated.............. 80s Organic vapors.........As received...................CClt Equilibrated................ CCli Ammonia................. Asrecelved.....................NHi Equilibrated................ NHj 8,000 5.000 5.000 5.000 5.000 5,000 5,000 5.000 5.000 5,000 64 3 64 3 64 3 32 4 32 4 32 4 64 3 32 4 64 3 32 4 5 6 5 8 5 5 6 50 0 12 12 12 12 12 t'2 12 12 12 12 t Minimum life will bo determined at the Indicated peavtrattoo. Table 7.--Canister Benco Tests and Requirement* toe Escafe Oas Mask Canisters (30 CFR Part 11, Subpart 1.111.103-8) Canlstor typo Test condition Tost atmosphere 1 1 Oas Concentra- Flow or don, rate, vapor p.p.m. Lpmx. Maximum Number allowable of penetra- tests Cion, p.p.m. MInJmura service life, mlnutos * with a window or other indicator to warn of imminent leakage of other gases or Acid gas....................At received. vapors. (3) The window indicator canisters Equilibrated. 80s CU NOs BOs CU 6,000 6,000 5,000 6,000 6,000 64 3 64 3 64 3 32 4 32 4 8 6 5 5 5 will be tested as regular canisters, but Organic vapors......... As received............... NOs ecu 6.000 6,000 32 4 64 3 S 5 shall show a satisfactory Indicator Equilibrated............... ecu 6,000 32 4 5 change or other warning before the Ammonia................. As received................ Kq*d!llrtM.............. Nils Nils 6, OX) 6, 0*3 64 3 32 4 60 f> allov.'i.ble canister penetration has Carton jnor.jxt1!''.... A' r*c-.:ve<i................... CO CO occurred. CO 6. M0 3,000 <32 *32 2 (s> 3 <*> 3 <> 12 12 12 12 12 12 12 1122 12 t'O o (d) Chin-style gas mask canisters shall meet the minimum requirements set forth in Table 6. (e) Escape gas mask canisters shall meet the minimum requirements set forth in Table 7. t Minimum life will be determined at tbe Indicated penetration. * Relative humidity of test atmosphere will bo or*A3 percent: temperature of bat atmosphere will bo 2>2 s* c. 1 Maximum allowable CO penetration will be 333 ce. during tbe minimum Ike. Tbe penetration shell not execei 600p.p.m. durlug this time. * If effluent temperature exceeds 100* C. during this test, the escape gas mask shall be equipped with an effective beat exchanger. * Relative humidity of test atmosphere will be flSsfcS percoot; temperature of teat atmosphere entering the test fixture will be 0+2.5* C.--0* C. No. 59--Pt. II- FSDERAl REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005634 6260 RULES AND REGULATIONS Subpart J--Supplied-Air Respirators 11.110 Supplied-air respirators; He- scriplion. (a) Supplied-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" supplied-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 largediameter 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" suppiied-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. <j) "CE" supplied-air respira tor;. A : . . supplied-alr respirator additional devices de signed to protect the wearer's head and neck again.-t impact and abrasion from rebounding abrasive material, and with ihie'.ding :::v..;rial such as plastic, glass, woven wire, sheet metal, or other suit able material to protect the windowfs) <-f f.'ccp'-.ves. hoods, and helmets which do not unduly interfere with the wearer's vision and permit easy access to the ex ternal surface of such windowfs) for cleaning. 11.111 Supplieil-air respirators; re quired components, (a) 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; (6) Flexible breathing tube; and (7) Respirator harness. (b) The component parts of each supplied-air respirator shall meet the minimum construction requirements set forth in Subpart G of this part. 11.112 Breathing tubes; minimum requintmenls. (a) Flexible breathing tubes used in conjunction with supplied-air respirators shall be designed and constructed to ffrevent: (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* mcnls. (a) Each supplied-nir 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 Rcsnirator containers; mini mum requirements. Supplied-alr 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. 11.115. Half-mask facepieces, full facepieces, hoods, and helmets; fit; minimum requirements. Ca) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial shapes and sizes eitl-.cr (1) by providing more than one facepiece size, or (2) by providing one facepiece size which will fit varying facial shapes and sizes. (b) Full facepieces shall provide for optional use of corrective spectacles or lenses, which shall not reduce the 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 or lenses, 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. (a) Facepieces, hoods, and helmets shall be designed and constructed to pro vide adequate vision which is not dis torted by the eyepiece. (b) All eyepieces 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 GGG-- M-I25d, October 11. 1965. (c) (1) 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 for cleaning. 11.117 Inhalation and exhalation valves; check valves; minimum re quirements. fa) 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 requiremcnls. 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 re quirements. Type AE, BE, and CE supplied-alr respirators shall be designed and con structed to provide protection against Impact and abrasion from rebounding abrasive materials to the wearer's head ar.d neck. 11.120 Air velocity ond noi-e levels; hoods and helmets; minimum re. quiremcnls. Noise levels generated by the respira tor will be measured inside the hood or helmet at maximum airflow obtainable FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 2S, 1972 CAPCO JEN 0005635 RULES AND REGULATIONS 6261 within pressure and hose length require ments and shall not exceed SO <13A. 11.121 Breaihmg gas; minimum re- (fuirementa. (a) Breathing gas used to supply supplied-air respirators shall be respirable breathing air and contain no less than 19.5 volume-percent of oxygen. (b) Compressed, gaseous breathing air shall meet the applicable minimum grade requirements lor 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 ingher quality). 11.122 Air supply source; hand-opernted or motor driven uir blowers; Type A supplied-air respirators; min- imum requirements. (at 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. 1 1.12.7 Terminal fillin':* or chambers; T,'pc It supplied-nir rr-pirators; min imum requirements. (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 fittings 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 or chamber in a fixed position in a zone of respirable air. 11.124 Supplied-air respirators; per formance 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 ; 11 11-4-1 through 11.124-24. IJ. 12 i--1 Hand-operated blower 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 par 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. These are used to facilitate timing. To 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 marx 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. 11.12-1--2 Motor-operated blower 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 of 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 5 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 blowers. As shown In Figure 1. the blower crank Is replaced by a wooden drum, a (13 cm. (j 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 maple 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. (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 kN/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 cage) under any conditions. 11.12-1--6 Type C supplictl-air re-piralor, demand and prev^ure demand class; minimum requirements. (a) Respirators tested under this sec tion shall be approved only when used to supply respirable air at the pressures and quantities required. (b) The manufacturer shall specify the range of air pressure at the point of attachment of the atr-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 n the airsupply 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 of attach ment of the here to th.- -ply sys tem from exceeding 5.13 kN/m/ (125 pounds per square inch gage). (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 25, 1972 CAPCO JEN 0005636 6262 RULES AND REGULATIONS would be set to orcrate at a maximum of 1,035 kN/m.` (150 pounds per square Inch). against closing oft by kinking or by chin or arm pressure, and they shall not create a pull that will loosen the facepiece or disturb the wearer. 11.121-12 Airflow resistance test; Type C supplied-air respirator, con tinuous flow class and Typo CE supplied-air respirator; minimum re 11,121--7 Air-supply line tests; minimum requirements* (b) Breathing tubes employed on Type C supplied-air respirators of the con quirements. The resistance to air flowing from the Air supply lines employed on Type A. tinuous flow class shall meet the mini respirator shall not exceed 25 mm. (1 Type B, and Type C supplied-air respi mum requirements set forth In paragraph inch) of water-column height when the rators shall meet the minimum test re (a) of this section, however, an exten air flow into the respiratory-inlet cover quirements set forth in Table 8. sion of the connecting hose may be em ing is 115 liters (4 cubic feet) per minute. 11.121--8 Harness test; minimum re- quirf metita* (a) (1) Shoulder straps employed on Type A supphed-alr respirators shall be tested for strength of material. Joints, and seams and must separately with stand a pull of 113 kg. (250 pounds) for 30 minutes without failure. (2) Belts, rings, and attachments for life lines must withstand a pull of 136 kg. (300 pounds) for 30 minutes without failure. (3) The hose shall be firmly attached to the harness so as to withstand a pull of 113 kg. (250 pounds) for 30 minutes without separating, and the hose at ployed In lieu of the breathing tubes required. (c) (1) A flexible, nonkinking type breathing tube shall: (I) Be employed on Type C supplied-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 sure. and shall not create a puli that will loosen the facepiece or disturb the wearer. 11.124--13 Airflow resistance lest; 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. 11.121--14 Airflow resistance test; Type C supplied-air respirator, pres sure-demand clas; minimum re quirements. tachments shall be arranged so that the puli or drag of the hose behind an ad vancing wearer does not disarrange the harness or exert pull upon the facepiece. (4) The arrangement and suitability 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. 1100 pounds) for 30 min utes w ithout separating or showing signs 11.121--10 Airflow refinance lest. Type A and Type All supplied-air res pirators; minimum requirements. (a) Airflow resistance will be deter mined when the respirator is completely assembled with the respiratory-inlet covering, the air-supply device, and the maximum length of air-supply hose coiled for onc-haif 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 b'.ower is not operating or under any practical condition of blowtr operation shall not exceed the following amounts: (a) The static pressure In the face piece shall not exceed 38 mm. (1.5 inches) of water-column height. (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.> Krhalatirn valve leakage tot. (a) Dry exhalation valves and valve of failure. seats will be subjected to a suction of 25 (4) The design of the harness and Matlraum lencth of tioso Madmum resistance mm. water-column height while In a nor attachment of the line shall permit drag ging the maximum length of hose con for which respirator Is approved water column height mal operating position. (b) Leakage between the valve and sidered for approval over a concrete floor without disarranging the harness or Feet Metera Inches 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) Tlie harness employed on Type C respirators shall be similar to that re quired on the Type B respirator, or. it 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 respiratory-inlet 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. 75 23 1.5 33 150 250 4?U6 2.5 3.5 64 89 300 91 4.0 :o2 (c) The exhalation resistance shall not exceed 25 mm. (1 inch) of water-column 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 B 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 11.121--16 Man testa for gnrs and vapors; supplied-air respirators; gen eral performance requirements. (a) Wearers will enter a chamber con taining a gas or vapor as prescribed in H 11.124-17. 11.124-18, 11.124.19, and 11.124-20. (b) Each wearer will spend 10 minutes in work to provide observations on free dom of the device from leakage. The freedom and comfort allowed the wearer wilt 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--9 Breathing tube tret; mini- length to be considered for approval, container, or equivalent wovk. mum ;`jJiirfint'iils. coiled in loops 1.5 to 2.1 m. (5 to 7 feet) (d) No odor of the test gas or vapor (a) (1) Type A and Type B supplied- In diameter. shall be detected by the wearer in the air respirators shall employ one or two flexible breathing 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) The 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 2S, 1972 CAPCO JEN 0005637 RULES AND REGULATIONS 6263 11.121--17 Mnn test for cases and maximum pressure with the minimum (1) The amount of particulate matter \apun: T.'|te A nml Type All re-piru- hose length. In the air withdrawn from the respira lurs; test rcqiiiremen.s, fa) The completely assembled respi rator will be worn In a chamber contain ing 0.1 0.025 percent lsoamyl acetate vapor, and the blower, the Intake of the hose, and r.ot more than 25 percent of the hose length will be located in isoamyl acetate-free air. fb) 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). 11.121--21 Tests for protection during ubrn-isc blasting; Type AK, Tyne BE, and Type CK -uppiied-air respirators; general performance requirements. (a) Tests will be made under condi tions of typical abrasive blasting opera tion. (b) The tests prescribed in 51 11.12422, 11.124-23, and 11.124-24 will be con ducted under the following conditions: (1) A suction-fced abrasive blasting outftit will be used by the wearer; (2) The diameter of the air jet shall tory-inlet covering shall not exceed the amount of particulate matter supplied to the respirator by more than 0.5 mg: for the 30-minute test period; (2) The wearer of .the respirator in this test shall not experience undue en cumbrance aud 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. (c) The 10-minute work test will be be 5 mm. (A Inch);. repeated with the blower in operation (3) Air pressure will be 275-483 kN/ 11.121--22 Test for protection during at any practical speed up to 50 revolu m.' (40-70 pounds per square Inch): tions of the crank per minute. (4) The abrasive used will contain a abrasive blasting; Type AE supptiedair respirator; test requirements. 11.121--111 Mnn test for ca*cs ami sapors; Tspe B and Type Ills respira tors; test requirements. composition of 094- percent free silica (SiO.O : (5) The size properties of the abrasive used will be a mixture of 90 percent by (a) The respirator will be arranged as prescribed In 11.124--17(a). and the tests prescribed in 5 11.124-21 will be performed. (a) The completely assembled respi weight of essentially No. 1 sandblast sand (b) The wearer will draw his in rator will be worn in a chamber contain and 10 percent air-floated fines; and spired air through the hose, connec ing 0.1-v 0.025 percent isoamvl acetate (G) The No. 1 sand used will meet a tions, and all parts of the air device by vapor, and the intake of the hose, and size specification of not more than 10 means of Ills lungs alone (blower not not more than 25 percent of the hose percent on a 20-mesh sieve and not more operating). length will be located in isoamyl acetate- than 10 percent through a 35-mesh sieve; (c) The test will be repeated with the free air. 99+ percent of the fines will be able to blower In operation at any practical (b) The man in the isoamyl acetate pass through a 270-mesh sieve. All size speed up to 50 revolutions per minute atmosphere will draw his inspired air determinations will be made by standard- of the crank. through the hose and connections by means of his lungs alone. 11.12-1--10 Mnn test for gases nnd sapors: Type C respirator*, continu ous.flos* ri.i" and Type OK supplied- .iir r*-*pirahr': tr-l roi(mromont<. a* The completely assembled respi rator v. be worn :n a chamber contain ing 0 1. O.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 isoamyl acetate-free air. (b > The minimum flow of air required to maintain a positive pressure in the respirator;-'-inlet covering throughout the entire breathing cycle will be sup plied to the wearer, provided however, that airflow shall not' be less than 115 liters per minute for tight-fitting and not Jess than 170 liters per minute for loosefitting respiratory inlet-coverings. mesh sieves. (c) Tests will be conducted for 30 min utes continuously. (d) (1) The person wearing the res pirator v ill sandblast the inride surface of a common iron kettle of approximate hcmi.-phc.icul shape (about 75 cm. <30 inches) in diameter, and 113 C lifers <30 gallons i capacity j. <2) The kettle will be placed v.i'.H 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. (6 Inches) from the surface, and with his 11.124--23 Test for protection during abrasive blasting; Type BE suppliedair respirator; test requirements. <a) The respirator will be arranged as prescribed hi 5 ll.I24-18(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.;, aud all parts of the air device by means of his lungs alone. 11.124--21 Test for protection during abrasive blasting; Type CE suppliedair respirator; test requirement-. (a) The respirator will be arranged as prescribed in 5 11.124-19<a), and the tests prescribed in 511.124-21 will be performed. (c) The test will be repeated with the head approximately 46 cm. (15 inches) maximum rate of flow attainable within from the nozzle. specified operating pressures. (5) The wearer will move his head for 11.121--20 Man teat .for gases and ward, backward, and sideways during vapors; Type C supptied-air respira each blasting operation. tors, demand an'd 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 0.1 0.025 percent isoamyl acetate vapor, the intake of the hose will be con- r.or'-'.l to a suitable source of respirable <r..-.re than -~i of the liters (1.13 cubic feet) per minute from the respiratory-imet covering at a point as near as convenient to the wearer's nostills. (2) Simultaneously air will be drown at 11.a - ro.`i; from `.lie rf in- h.'.i.'.i v.-.U be lccu^:: in i.-.o.unvl t -.io ,.i.- to :id re-; hater. a A"- ; air. (f) Ilo.miroAors testes' ip. act'.-/' nee <b' The test will be conducted at the with }l 11.124--22, 11.121-73, and ;wssure with the maximum 11.124-21 ;'nnU meet the jolloving mini hose le:-;:and will be repealed at the mi;m roquiremonis; Suh;'Ar: J. i II.121-2) FSOERAL REGISTER, VOL 37, NO. 59--SATURDAY, MAkCH 25, T972 CAPCO JEN 0005638 CAPCO JEN 0005639 ;ro C F H V rrt 11, Fubpart J, 1 11.121-7) (30 C F H r o r t 11.Subparl J. 1 11.121-7) RULES AND REGULATIONS G264 RULES AND REGULATIONS 6265 Subpcrt K--Dusf, Fume, Respirators and Mist dusts, or dusts and mists, including but not limited to aluminum, asbestos, coal, flour, iron ore, and free silica. structed to fit persons with various facial shapes and sizes either: (1) By providing more than one facepiece size, or. (2) by 11.130 Dust, fume, and mist respira (1) The types of dust, fume, and mist providing one facepiece size which wiU tors; description. respirators in paragraphs (a) through fit varying facial shapes and sizes. Dust, fume, and mist respirators, In cluding all completely assembled respi rators designed for use as respiratory protection during entry Into and escape fiom hazardous particulate atmospheres which contain adequate oxygen to sup port life, are described as follows: (a) Respirators, either with replace able or reusable Alters, designed as res piratory protection against dusts (1) having an air contamination level not less than 0.05 milligram per cubic meter of air, Including but not limited to coal, arsenic, cadmium, chromium, lead, and manganese: or C2) 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 (g) of this section may also be classified according to their design as follows: (D Air-purifying respirators: and (2) Powered air-purifying respirators. 11.131 Dust, fume und mist respira tors; required components. (a) Each dust, fume, and mis respi rator described In 3 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. (b) Full facepieces shall provide for optional use of corrective spectacles or lenses, which shall not reduce the respi ratory protective qualities of the respira tor. (c> Hoods and helmets shall be de signed and constructed to fit persons with various head sizes, provide for the op tional use of corrective spectacles or lenses, and Insure against any restriction of movement by the wearer. (d) Mouthpieces shall be equipped with 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 ing, quarrying, and tunneling, and In 11.132 Breathing tubes; minimum re mined by the Bureau's facepiece tests in dusts produced during Industrial opera quirements. S 11.140-1 and 11.140-3. tions. such as grinding, crushing, and the general processing of minerals and other materials. (b) Respirators, with replaceable fil ters. designed as respiratory protection against fumes of various metals having an air contamination level not less than 0.05 milligram per cubic meter, Includ ing but not limited to aluminum, anti mony, arsenic, cadmium, chromium, cop per. iron. lead, magnesium, manganese, mercury (except mercury vapor), and '.me, which result from the sublimation or condensation of their respective vapors, or from the chemical reaction between their respective vapors and gases. (c) Respirators, with replaceable fil ters. designed as respiratory protection against mists of materials having an air contamination level not less than 0.05 milligram per cubic meter or 2 million particles per cubic foot, e.g., mists pro duced by spray coating with vitrecus enamels, chromic acid mist produced during chromium plating, and other mists of- materials whose liquid vehicle does not produce harmful gases or vapors. Cd) Respirators, with replaceable fil ters. designed as respiratory protection against dusts, fumes, and mists having an air contamination level less than 0.05 milligram per cubic meter, including but not limited to lithium hydride and Beryl lium, and against radionuclides. (e) Respirators, with replaceable fil ters. designed as respiratory protection against radon daughters, and radon daughters attached to dusts, fumes, and mi'ts. orat-ors. with r.-pla -cable fil ters, Je-.-.r.-ci as respiratory protection ag.iins; n.-'ocitos-containing dusts and mists. (g) Respirators, with replaceable fil ters. designed as protection against var ious combinations of particulate matter. 'hi Single-use dust respirators de (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 i~) Shutoff of airflow duo to kinking, or from chin or arm pressure. 11.133 Hnrno'-ei: installation and conMruction; minimum require ments. Ca) 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. 11.13-1 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 yw-vviit cositamina'in't of rc.-ptrators which are not removed, and to pre vent damage to respirators during trans it. 11.133 H.ilf.mn-k fui-enierrs full fa.-cpi,-(-, liooiN, helmet-.. ;i ini mouthpieces: lit: minimum require ment-. 11.135 Facepieces, IiootL-s and Jielniets; eyepieces; minimum requirenicnta. Facepieces, hoods, and helmets shall he designed and constructed to provide ade quate vision which is not distorted by the eyepieces. 11.137 rnlialatintt anti cvlialalion valves; minimum requirements. (a) Inhalation and c-xkaiation valves shall be protected against diitort'cu. 'b) Inhalation valves shall to designed and constructed and provided where nec essary to prevent excessive exhaled air from adversely affecting filters, except where filters are specifically designed ro resist moisture as prescribed in 5 11.140-5. (c) Exhalation valves shall be: (1) Provided where necessary; (2) protected against damage and external influence: and (3) designed and constructed to prevent inward leakage of contaminated air. 11.138 Head harncs.-cs; minimum re quirements- (a) All facepieces shall be equipped with head harnesses designed and con structed to provide adequate tension during use and an even distribution of pressure over the entire area In contact with the face. (b) Facepiece head harnesses, except those employed on single-use respirators, shall be adjustable and replaceable. <c> Mouthpieces shall be equipped, whore applicable, v.;-Iju-f-v.o ,-n-i :c:-able harnc..v c-.v- scruc'ed to hold tiic ir.O';thp:-vo in, j.'.ve. 11.139 Air \clociiy ami imi-.: I.-\ei-; hood- ami helmet-*: minimum rcqiiir.-nu*nt.-. Noise levels gonerated by :he respira tor will be measured inside the hood or signed as respiratory protection against 'a' Half-mask faccpicccs and full helmet at maximum airflow obtainable pneumoconiosis- and fibrosis-producing facepieces shall be designed and con and shall not exceed 80 dEA. FEDERAL REGISTER. VOl. J7, MO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005640 C2G6 RULES AND REGULATIONS 11.1 10 Dust, fume, and mist ropira- tors; performance requirements; general. Dust, fume, end mist respirators and the individual components of each such device shall, as appropriate, meet the requirements for performance and pro tection specified in the tests described in 5 11.140-1 through 11.140-12 and pre scribed in Tables 9 and 10. 11.110--1 Isoamyl acetate tightness tc-it; dust, fume, and mist ropir.Uors designed for respiratory protection against fumes of various metals hav ing an air contamination level not less than 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. Cb) 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. 11.140--2 I -oit m v I acetate tightne-s test: respirators designed for respiratoiy protection against dusts, fumes, and nii'ts having an uir contamina tion Joel leva than 0.05 milligram per enhic meter, or against radio nuclides; minimum requirements, (a) The applicant shall provide a charcoal-filled canister or cartridge of a size and resistance similar to tire filter unit with connectors which can be at tached to the facepiece in the same man ner as the filter ..nit. (b) (li 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: (i) Two minutes walking, nodding, and shaking head in normal movements; and (il) 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 c-trr c-. iseamyi-acetate shall not be ' ' . v.g.'.rer curing the 1. . -t-spiratcir is cqu.pced c.i, hood, heim.w. or . ..t .uiiotcr or cartridge will p-l.sc* of the filler unit, and . - . v.e.-.v the modified res- . . :- :j-.v::r.e lor 5 minutes in containing 1.003 parts (by v. isoamyl-acetate vapor per ::: Ik- : of n:r, performing the work schedule specified In paragraph (b) (2) of this section. 11.140-3 /ir-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 rcuseahlc 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-purifying respira tors. (b) Tire 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) Tire 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 tills 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. 21.140-5 Silivaalii-t test; single-use dust respirators; minimum require ments. (a) Three respirators will be tested. (b) As described in 511.140-4, airflow will be cycled through the respirator by a breathing machine at the rate of 24 respirations per minute with a minute volume of 40 liters; a breathing machine cam with a work r: t of 622 kg.-:u.' min ute shall fce \..'-r.i. (c> Air exhaled t;-.:\..-.i tii the re.-pirator will be 35 _-.:2 C. iD.V ..-3- P.i with 94 3 percent relative humidity. (U) Air inhaled through the respira tor will be sampled and analyzed for respirator leakage. (e> The total amount of utiretalned test suspension, aitcr 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 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 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 unretnined 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 load for a powered air-purify ing respirator with loose-fitting hood or helmet. 11.110--7 Silica mi-l let; 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. FEDit'Al r.tCISTrR, VO!.. 3/. NO. S9--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005641 RULES AND REGULATIONS 6267 11.1-10-8 Testa for respirators dc-i,;ned for respiratory protection against more than one typo of dispersoid; minimum requirements. 11.110--11 1)01* filler test; respirators designed as respiratory protection against dusts, fumes, arid mists hav ing an air' contamination level less titan 0.05 milligram per cubic meter Subpart L--Chemical Cartridge Respirators 11,150 Chemical cartridge respirators; description. 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. 11.140-9 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: Mxxmvx Resistance (mm. water-column height) Tn** of respirator Initial Final Exhala Inhala Inhala tion tion tion i>X -,r 1 mist. 4;:`2.i'U Milter.... Da*: mist. R.v!. :i Asbestos Oust and mist... 12 15 30 M to IS >25 16 25 15 20 20 15 16 t m* v-'M-'d alter silica dust t4t described la 5 ll.UO-t. 11.140--10 Exhalation valve leakage tot; minimum requirements* (a) Dry exhalation valves and valve sears 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. and 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 pairs, the flow rates will be 16 and 42.5 liters per minute, respectively, through each filter. (c) Tito 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. Txcr.r 9.--Facepiece test Reohaements (30 C r P. l'irt 11, Subinrt K, i I l.l 10-1, et seq.) Tt\pra*ir typ'S FroRsur? r.v,amyl r.cptata t*v-t test * IL. 140-1 11.140-2 Dusta:Alr Contamination Level not loss than 0.05 mc/M* or 2 mppof......... X Fumaa: Air Corn..:..na tion Lovrl not Icns than XT Mists: Atr Cnnt vmination Level not lest than 0.05 mc/M* or 2 mpi^f.. X Dusts. Fumes, and Mists: Air Co:;tn;n.j.oUon Lovel less than 0.05 mg/ M* or 2 mpncf, and X .............. X XX Asbestos-couiaiuing dusts X 1 Tut is required only wbore applicable Chemical cartridge respirators includ ing all completely assembled respirators which are designed for use as respiratory protection during entry into or escape from atmospheres not immediately dangerous to life and health, ore de scribed according to the specific gases or vapors against which they are designed to provide, respiratory protection, as follows: Maximum use Type of chemical concentration, parts cartridge respirator: per million Ammonia ....______________________ 300 Chlorine ____________________________ 10 Hydrogen chloride___________________ SO Methyl amine______________ _________ 100 Organic vapor T____________________ >1,000 Sulfur dioxide........... SO ' Not for use against organic vapors with poor warning properties or thcce which gen erate high heats of reaction with eorbent material in the cartridge. Maximum use concentrations ere 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 writing, to the Bureau. The Bureau and the Institute shall consider each such application and ac cept or reject the application after a review of the effects on ths wearer's health ar.d safety and In the light of any field experience In uss of chemical cartridge respirators as oroteotion against such hazards. 11.151 Chemical cartridge respirators; required components. (a) Each chemical cartridge respira tor described in 511.150 shall, where its design requires, contain the following component parts: (1) Facepiece, mouthpiece, and noseclip, hood, or helmet; (2) Cartridge: (3) Cartridge with filter: (4) Harness; (5) Breathing tube; and Tabee 19--Ant-PCRimNO and Powered Aui-Poiurnno REsrutAToa Fats* Tests REquiaEo roa Appbotal (6) Attached blower. (30 CFR Part It, Subpart K, I ll.UO-t. at seq.) (b) The components of each chemical cartridge respirator shall meet the mini Respirator types Lead BUlea DOP SiUca dust tests futaa mist tut --------------------------------------- tot tot 1L140-1 1LH0-J 1L140-U 1LH0-S 1LU0-T ILHO-ll mum construction requirements set forth in Subpart G of this part. 11.152 Cartridges in parallel; resist ance requirements. Dusts: Air Contamination Level not less than 0.05 mg/ X ....---------------------------------------------- -----------M1 or 2 tapper. Fu.-.-a-s: A:.-CV.,'.tamJnatlouLevelnotlessthan0.05mg/......................... ...............ace X r------------ -------- VI. *. - , -a I.\:i i.-'l "/................. .......... ...............-:ea X e......... Where two or more cartridges are used In parallel, their resistance to airflow shall be essentially equal. vtJ M:s!.v Air Co .1 Lovel rrt:..--. ` *' -* 2 mppcf, *;r.i rgj^aui-'.i'-es. T;!. ... m................................................. ....... ; X* A>|-- -d*j*tt And mists.............. ............2 X* "-'tail and ni53trespirators...........-____ . - -- ! F r r* '* .0 only. * 1 -if l .- 'I'n'ion onl7. 1 *i ; *vr*-l only vhero Applicable; 5 CartriiJUu*: color :;iul :si .rk- jn^*\ roquiroments. The color and markings of ail car tridges or labels shall conform with the requirements of the American National Standard for Identification of Gas Mask No. .3--Ft. n- FEDERAl REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25. 1972 CAPCO JEN 0005642 6268 RULES AND REGULATIONS Canisters. K13.1, obtainable from Amer ican National Standards Institute, Inc, 1430 Broadway New York, NY 10018. 11.154 Filters used with chemical car tridges; location; replacement (a) PartUulate matter Alters used In conjunction with a chemical cartridge shall be located on the inlet side of the cartridge. <b) Filters shall be incorporated in or firmly attached to the cartridge and each filter assembly shall, where applicable, be designed to permit its easy removal from and replacement on the cartridge. 11.155 Breathing tubes; minimum re- qmreuiettts. (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) Shutotf of airflow due to kinking, or from chin or arm pressure. 11.156 Ramoses; installation and construction; minimum requirc- menU. (a) Each respirator shall, where nec essary, be equipped with a suitable harness cc-imcd and constructed to hold the compoti'.monts of the respirator in position against the wearer's body. <b> Hanicv cs shall be designed and constructed permit easy removal and replacement of respirator parts and, where applicable, provide for holding a full facepiece tn the ready position when not in use. 11.157 I?,--pir:.tnr containers; tnini- mum requirement'*. 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 all appropriate approval labels. 11.158 ll.dfrma.U facepieces, full facepiece-* mouthpiece?, hoods, and helmet?; lit: minimum requirements. fa) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with variousi facial shapes and sizes either: <1> By provid ing more than one facepiece size, or (2) by providing one facepiece size which will fit varying facial shapes and sizes. (b) Hoods and helmets shall be de signed and constructed to fit persons with variou- in-ad sizes, provide for the opllonal u--- corrective spectacles or . .-r .g.-din-t any rostrie.icn r.-l v.-m- -.-.-.ircr. (c> Mou'.: shall be equipped with none which are securely at tached to ' r.-->u:r,oiece or respirator and provi i - . : ;nt 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. Ce) Facepieces, hoods, and helmets shall be designed to prevent eyepiece fogging. 11.158--1 Facepieces, hoods, and hel mets; eyepieces; minimum require- msnts* 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 exlialation vutves; 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 valves shall be: (1) Protected against flamage and external influence, and (2) designed and con structed to prevent inward leakage of contaminated air. 11.160 ITcad harnesses; minimum re- qmremcnls. ia) Facepieces shall be equipped with adjustable and replaceable head har nesses designed and constructed to pro vide adequate tension during use raid an even distribution of pressure over the entire area in contact with the face. ib' 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 velocity and noi-e levels; hoods and liclmcls; minimum re quirements. Noise levels generated by the respira tor mil 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 11.162-1 through 11.162-8. 11.162--1 Breathing resistance test; minimum requirements, (a) Resistance to aiiflow will be meas ured in the facepiece, mouthpiece, hood, or helmet of a chemical cartridge respi rator mounted on a test fixture with -Ur f.vvir.v at a coalin'.:---.-; rr.t-' of G5 liters ;vr minute. bath b;:c. r .me- act.-r e.ich :;j.: conducted m accv-. Cu.ce with i3 11.162-5 through 11.152-3. <b) The maximum allowable resist ance requirements for chemical cartridge repirz.lors are as follows: lUxiuuu Resistance Cnun. Witter-ecltunn height) Type of chemical cartridge Inhalation ExhtCaInitial Final * For gas#*, vapors, or gases and rapon.............................. For gaitd, vapors, or gases oud rspon, and dusts, fumes, and mists... For gases, vapors, or gases and vapors, and mists of points. lacquers, and aameu.w. 43 w 70 CO 70 30 20 20 1 Measured at end of service tile sp-clded la Table 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 raspirator_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. (c) Any chemical cartridge respirator part which must be removed to perform the facepiece or mouthpiece fit test shall be replaceable without special tools ar.d 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.pm. Isoamyl acetate vapor for half-mask facepieces, and 1,000 p.p.m. for full facepieces, mouthpieces, hoods, and helmets. (2) The. facppiece or mouthpiece may be adjusted, if necessary, in the test chamber before starting the test. (3) Each wearer will remain in the chamber for 8 minutes while performing the following activities: (i) Two minutes, nodding and turning head; (ii) Two minutes, calisthcnic arm movements; (iii) Two minutes, running in place; and Civ) Two minutes, pump:.-.; vi'.k -, :'i-- otimp intc a 28-kte.* (1 j>i:.;e-f container. (4) Each wearer shall not d'-iect (he odor of Isoamyl-acetato vapor tiirrln:; the test. FcOEV.M ESC-ISIES, VOl. 37, MO. 5V--'.lATL'SOAV, MARCH 2S, 1972 CAPCO JEN 0005643 RULES AND REGULATIONS 6269 11.162--4 Larquer and enamel tc>ta; respirators with filters; mini mum requirements; 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 11 11.162-5 and 11.162-6. 11.162-5 Lacquer mist iest; 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 kN/m1. (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-B31, October 7, 1953. (g) The concentration of cellulose nitrate in the tost 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, sliail 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. (d) The atomizer employed will be a pirators shall not exceed the maximum No. 64 nozzle with setup 1A, or equiv allowable limits set forth In 11.162-1. alent, operating at 69 kN/m*. (10 pounds per square Inch gage). (e) The test aerosol will be prepared by atomizing a mixture of 1 volume of white enamel and 1 volume or turpentine. (f) The enamel used will conform es sentially to Federal Specification TT-E489b, May 12, 1353 (an enamel having a phthalic 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 158 minutes for air-purifying respirators and 240 minutes for power air-purifying respirators. (i) The total amount of unretalned 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 tight-fitting facepiece, and 12.3 milligrams for a powered air-purifying respirator with loose-fitting hood or helmet. 11.162-8 Bench teals; gas und vapor tests; minimum requirements; gen eral. (a) Bench tests will be made on an apparatus that allows the test atmos phere at 50 5 percent relative humid ity and room temperature, approximately 25* C., to enter the cartridges contin uously at predetermined concentrations and rates of flow, and that has means for determining the test life of the cartridges. (b) Where two cartridges are used In parallel on a chemical cartridge respi rator, the 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 11.162--7 Dust, fume, ar.d mit tests; lowing flow rates (expressed In liters per respirators with filters; minimum re minute (l.pm.)) for 6 hours: quirements; general. (a) Three respirators with cartridges Type of cartridge: Airflow rate.l.p.m. containing, or having attached to them, Air purifying 25 filters for protection against dusts, Powered air purifying wltii tight- fumes, and mists, except the mists of fitting facepiece_____________________ 115 paints, lacquers, and enamels, will be Powered air purifying with loose- ' tested in accordance with the provisions fitting hood or helmet______________ 170 of 5 11.1G2-S. (e) Two cartridges or pahs of car (b) In addition to the test require tridges will be equilibrated by passing S5 ments set forth in paragraph (a) of tills percent relative humidity air through section, three such respirators will be them at the flow rates stated In para tested, os appropriate, in accordance graph (d) of this section. with the provisions of IS 11.140-1 through 11.140-14. however, the maxi mum allowable resistance of complete dust, ftune, and mist, and gas, vapor, or (f) All cartridges will be resealed, kept In an upright position, at room tempera tures, and tested within 18 Lours. (g) Cartridges will be tested and shall meet the minimum requirements set gas and vapor chemical cartridge res forth in Table II. Tabce II.--Ciaratoca ll ESCB Testa lso nsocutmiEKrs (30 CFR Part 11, Subpart L, 111.162-8) Cartridge Test condition Teat atmosphere Oasor Concentra vapor tion (p.p.m.) Flowrate . Kumber Pena- ill[nlmum (l.p.m.) of tests trttlon * Ufe* (p.p.m.) Onto.) 11.162--6 Enamel mist test; minimum requirements. (a) Temperature in the test chamber will be approximately 25* C. TO) 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-fit ting facepieces and 170 liters per minute Ammonia......... . . NH, Ammonia............ . NH, Chlorine................ . Cl* Chlorine................... Equilibrated____ - Cl* Hydrogen chloride.... As received........ IiCI Hydrogen chloride.... Equilibrated....... . HC! Methyl amine....... . ciitNir* Methyl amino........ Equilibrated....... . CltiNH* Organic vapor*.... . ecu Organic vapor*.... Sulfur dioxide....... .. . A* rereleed........... ecu SO* Sulfur dioxide....... .. Equilibrated......... so* 11000000 M 33 3 60 4 60 500 64 3 6 600 32 4 6 500 64 3 6 500 32 4 6 l1O0o0O0 moo 6432 64 3 4 3 11f00i 1030 32 4 3 r,ro 64 3 6 too * 32 4 5 50 60 35 36 50 SO 23 so M 0-) ' to !<.' `..'-fitting hoods and he'mets of powered air-purifying respirators. (c) Airflow tlirough the chamber will be 20-25 air changes per minute. i ''I: in.'tTr I:!.' t'!| h* d:: Jr M at th* In -' \*<*d \ * v*c a ir. f>r r^inTAtoc? this ? :* r:a r>r v.-.po-, .lu f.>p o*e la air.JKP.lt 'ad In chlorine, tS* mlr.i'nuui Ilf* if ono-nti* for o-ioh */[< c.ia or vnp-ir. Wh*.-r* a respirator li ! r rwplfi;o.*7 profrcti.va more than jra* of a tjpc, a 2or ere la chlorUe ar.d snlfar dioxide, cfce atetod ;nlnimal life ahull apply. Ko. 30--Pi. IT* fIDERAt REGISTER. VOL 37, NO. 59--SATURDAY, VARCH 25, 19/2 CAPCO JEN 0005644 G270 RULES AND REGULATIONS Subpari M--Pesticide Respirators 5 11.170 Poliriile respirators; deserip- lion. Pesticide respirators. Including aL' completely assembled respirators which are designed lor use as respiratory pro tection during entry into and escape Irom atmospheres which contain pesti cide hazards, are described according to their construction as follows: Ca) Front-mounted or back-mounted gas masks: (b) Chin-style gas mask; (c) Chemical cartridge; (d> Air-purifying respirator with a-f lached blower; and, cet Other devices, including combina tion respirators. 11.171 Pesticide respirators; required components. (a) Each pesticide respirator described in 5 11.170 shall, where Its design re quires. contain the following component parts: <1> Facepiece, mouthpiece, and rroseclip, helmet, or hood; (2) Canister with filter; <3> Cartridge with filter; f4) Harness; i'5) Attached blower; and, (C) 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 Oniii-trrs and cartridge, in par- alVl' rei Where t'-'.o or more canisters or car tridges are used in parallel, their resist ance to airflow shall be essentially equal. 11.173 Cani-ters and cartridges; color nod markings; requirements. Tlte color and markings of all canis ters aial cartridges or labels shall con form with tlte requirements of the American National Standard for Identi fication of Gas Mask Canisters. K13.f. 11.17 1 Fillers u-cd v,ill. canisters and cartridges; 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 each filter assembly shall, where applicable, bo designed to permit Its easy removal from and replacement on tlte canister or cartridge. 11.173 Breathing tubes; minimum re(pttremcuis. fat Flexible breathing tubes used in ccniuit'ticn with respirators shall bo dc- -.:! constructed to prevent: . ' of f::e ho-d r: C: (2i .tie'.:ice of the fit of f.'.-.epi- c's. mouthpieces, hoods, or helmets: i.2) T. c-fercuce with the wearer's ec- '.M, <: 1 .3`r.teSf of airflow due to kinking, or chin or arm pressure. 11.176 Harnesses; installation and construction; minimum require- incuts* Ca) Each respirator shall, where nec essary, be equipped with e. suitable har ness designed and constructed to hold the components of the respirator in po sition against the wearer's body. (b) Ifamesses 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 containers; mini mum requirements. (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 tlte mask. 11.178 Half-mask facepieces, full facepieces, hoods and helmets, and mouthpieces; fit; minimum require ments. (a) Half-mask facepieces and full facepieces shall be aesigned and con structed to fit persons with various facial shapes and sizes either: Cl) By providing more than one facepiece size, or (2) by providing one facepiece size which will fit varying facial shapes and sizes. * (bi Fuli facepieces shall provide for optional use of corrective spectacles or lenses, which shall not reduce the respiratory protective quality of the respirator. (c) Hoods and helmets shall be de signed and constructed to fit persons with various head.sizes, rermit 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. (di Pesticide respirators with mouth pieces shall be equipped with noseclips which are securely attached tc tlte mouthpiece or respirator and provide an airtight seal. (e) Facepieces, hoods, and helmets shall be designed to prevent eyepiece foggine. <f) Half-mask facepieces shall not Interfere with the fit of ccmmon indus trial safety corrective spectacles as deter mined by the facepiece tests In 11.183- 3. 11.179 Facepieces, hoods, and hel mets; eyepieces; minimum require ments. (a) Fac-'pieces. hoods, and helmets bed and eon.-.frurcntl to pre- tide vision-which i; m: dis torted b;. the eyepiece. (b) AH eyepieces of gas masks shall be designed and constructed to meet the Impact and penetration rec'urements specified in Federal Specification. Mask, Air line: and ite.-.pirator. Air entering. Industrial, GGG-M-125d, October 11, 1965. 11.180 Inhalation and exhalation valves; minimum requirements- (a) Inhalation and exhalation valves shall be protected against distortion. (b) Inhalation valves shall be designed and constructed and provided where necessary to prevent excessive exhaled air from adversely affecting cartridges, canisters, and filters. (c) Exhalation valves shall be: <l) 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 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. 11.182 Air velocity and noise levels; hoods and helmets; minimum re quirements. Noise levels generated by the respira tor will be measured instde the hood or helmet at maximum obtainable airflow and shall not exceed 80 dBA. 11.183 Pe-tici<le respirators: perform ance requirement?,; general. Pesticide respirators and the individ ual components of each such device shall, as appropriate, meet the requirements for performance and protection specified In the tests described In 55 11.183-1 through 11.183-7. 11.183--1 Breathing resislanec lest; 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 in accordance with 55 11.183-4 and 11.183-7. (b) The maximum allowable resist ance requirements for pesticide respira tors are as follows: Maximum Resistance (mm. water-columa height) lulmlfltlofi ExhaType of Pesticide respirator --------------------- lation Imfj.U Kifl'tl * Kroist. or birt-meunted m \'v.................................. C!ur.*?:y:e yiu tn-v4:................... |*uwrrd air-purifying............... ChctT.ciJ carindjo..................... 7** 05 *M W *v * 7.1 7v : yj * Measured at e.ii of the service life 3p*v\f.rJ In Table iUblttanc* of f:Krr(s\ car:rid U'lc(s) o:ily With WuAcr uol oj^rattn.;. FQ:2AL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005645 RULES AND REGULATIONS 6271 11.103--2 Exhalation valve leakage (d) The particle size distribution of gas mask pesticide respirators will be tr*t; minimum requirements. the test suspension will have a geometric tested in an atmospheric concentration (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. 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 00 minutes and powered air-purifying res of 100 mlcrograms of dioctyl-phlhaiite per liter of air at continuous flow rates of 32 and 85 liters per minute for a test period of 5 to 10 seconds. <b> The DOP leakage through the canister shall not exceed 0.03 percent of the ambient DOP concentration. 11.133-3 Facepiece test; minimum re- pirators will be tested for 4 hours. quiroments. 11.183--7 Bench teals; minimum re quirements. Ca) The complete pesticide respirator will be ficted to the .'aces of persons hav ing varying facial shapes and sizes. 11.133--5 Load fume test; minimum requirements. Throe completely assembled pesticide (a) (1) Bench tests will be made on an apparatus that allows the test atmos phere at 502:5 percent relative humidity (bi 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 respirators will be tested with a mechanical-testing apparatus as follows: (a) Continuous airflow through the respirator will be 32 liters per minute for front-mounted, back-mounted, and chin-style gas mask pesticide respirators 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 loose- and at room temperature (25`2:2.5* 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) Tlu-ee canisters or cartridges or pairs of cartridges will be removed from containers and tested as received from the applicant. recommended by the applicant and de fitting hoods and helmets. (4) Two canisters, cartridges, or pairs scribed in his instructions will be used (b) The test aerosol will contain 15- of cartridges will be equilibrated at room during each test. 20 milligrams of freshly generated lead- temperature by passing 25 percent rela (e) (1) Each wearer will enter a cham oxide fume, calculated as lead, per cubic tive humidity air through them at the ber containing 1.000 p.p.m. isoamyl- meter of air. following flow rates (expressed as liters acetate vapor for a respirator equipped (c) The fume will be generated by im per minute (l.p.m.) > for 6 hours: with a full facepiece, mouthpiece, hood, or helmet and 100 p.p.m. isoamyl-acetate vapor for a respirator equipped with a half-mask facepiece. 2> The facepiece, mouthpiece, hood, or helmet may be adjusted, if necessary, m the tort chamber before starting the 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 nmiutes and powered air-purifying pesticide res Type of canister or cartridge ,i.pn.`m,,'. Alr-purLTylng canister___________________ 6-t Alr-purilying cartridge----------- ------------- -'o powered alr-puriryir.g with t:;ht- fittuic raceplece_______________________ iiS Powered atr-purt(vlng w.tii ',.v,se- test. pirators will be tested for 4 hours. ftttiog hood or helmet---------------------- l"n <31 Eaeii wearer will remain in the chamber while performing the follow ing activities: li) Two minutes, nodding and turn ing head: rii) Two minutes, calisthcnic arm movements: viiiJ Two minutes, running in place; and. tiv) Two minutes, pumping with a tire pump into a 28-liter (1 cubic foot) container. (e) The total amount of unretained test suspension, which is analyzed and calculated as lead, shall not exceed: (1) 0.43 milligram for any 90-minute test; (2) 4.8 milligrams for any 4-hour test made at 115 liters (4 cubic feet) per minute; or (3) 6.2 milligrams for any 4-hour test made at 170 liters <0 cubic feet) per minute. 11,133--6 Dioetyl-phllialatP tr~t: uiiit- iiiuiin requirements. '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. (6> The equilibrated canisters or car tridges will be rescaled, kept in an up right position at room temperature, and tested within 18 hours. (b> Canisters and cartridges tested in accordance with the provisions of this (4) Each wearer shall not detect the (a) All canisters submitted for use section shall meet the requirements spec odor of isoamyl-acetate during the test. with front-mounted and back-mounted 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 25` 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 facepieces and 170 liters <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. Tame II.-Carron TETiucriLomoe Bench Tests and Requirements for Canisters and Cartridges (30 CFR Part H. Subput M. \ 11.1S3-7) Type of pesticide respirator Test eoneentra- Flow rat* Minimum life, Uon^p.p.m. l.p.m. Number of tests minutes1 Chest-mounted or back-mounted gas mask (as received).................................................................... Chest-mounted or back-mounted pas mask (equil ibrated) ..................................................................... Chin*si>li cos mask (as received)............................... Chin-jt)ir|Msuvi.4k (eqmlibiatvd)......................... Cherrn 41 c tfi'id/e risp.r.xtor (as r.nviwd*............ Chc`1:*.'-j r.itor (.qisiItl-M*.-:' ......... r-\*.r f/. * im.-vo, v. r* cvv. d) ................... ........................ Powt-r.-i :,:r.pur.fv::.tf ru<pirafur i*. t-(i:tii:<: f.Wi*p;e***.eqii:Ulr\t."l)........................................ Powered air-piiTiiyhis respirator (lnO'C-fittinK hood or helmet relived)............................................... Powered xf-p.irihir,; r. apirafor Coos'-!iUuu hood ocMujtt, e--iinht/-ai*,d;............................... 20,000 20.000 6,000 6.000 1,000 l.OOJ I.IW0 I. (WO 1.000 1,000 61 32 6t 22 3.! * US MIS *170 170 3 4 3 4 2 4 3 4 3 4 1 Minimum lifo will be determined at 5 p.p.m. Icakoce. , . . ,. The Row rate shall be theeirccttve Row raleof thedevlee, but shall be not less ttavi 115 l.p-nu * The Row rato shall b* the ffcctlvo floor ratnof the device, but shall be not leas than 1701. p-nw [FR Doc.72-4H6 FUed 3-24-72;8:46 am] 12 12 9 0 M :i n 6 2 60 26 FEDERAL REGISTER, VOl. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0005646