Document dnd7Zv9qBVJ9k31xr4xgQRO26

SATURDAY, MARCH 25, 1972 WASHINGTON, D.C. Volume 37 Number 59 PART 11 PLAINTIFF'S EXHIBIT DEPARTMENT OF THE INTERIOR Bureau of Mines a Respiratory Protective Devices; Tests for Permissibility; Fees No. 69--Pt. n------ 1 CAPCO JEN 0022147 6244 RULES AND REGULATIONS Title 30--MINERAL RESOURCES Chapter 1--Bureau of Mines, Department of the Interior SUSCHAPTER B--RESPIRATORY" PROTECTIVE APPARATUS; TESTS FOR PERMISSIBILITY; FEES PART 11--RESPIRATORY PROTEC TIVE DEVICES; TESTS FOR PER MISSIBILITY; FEES ' PART 12--SUPPUED-A1R RESPIRATORS PART. 13--GAS MASKS PART 14--FILTER-TYPE DUST, FUME, AND MIST RESPIRATORS PART 14a*--NONEMERGENCY GAS RESPIRATORS (CHEMICAL CAR TRIDGE RESPIRATORS, INCLUDING PAINT SPRAY RESPIRATORS) Pursuant to, the authority vested In the Secretary "of the Interior under 36 Stat. 369. as amended 37 Stat. 681 (30 U.S.C. 3, 5, and 7), and the authority vested in the Secretary of the Interior and the Secretary of Health, Education, and Welfare under sections 202(h), 204, and 508 of the Federal Coal Mine Health and Safety Act of 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 proposed regulations specified that protection factors for certain types of respirators would be determined by the Bureau during the course of testing. A suggestion was received that protection lactors 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 or protection factors is valid, present technology In thi3 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 Part 11 at a later date. Other significant technical revisions are; (1) Performance requ.rements have replaced certain design .-.oeciflcations; and (2) tests have' been Included for powered air-purifying respirators. ' Certain procedural revisions have also been made. The arrangement and num bering system of the proposed amend ments has been totally redesignated so as to place all procedural requirements at the beginning of Part 11 (Subparts A through F), followed by all technical requirements (Subparts G through Ml. Expanded and more stringent quality control requirements have been estaby lished (Subpart E); Examples of causes which may result in revocation of the certificate of approval have been speci fied. The time limit for phasing out respirators approved under revoked Parts 11, 12, 13, 14, and 14a of this Title 30 has been clarified (see I 11.2). A suggestion was received that models submitted for testing and approval be made only on regular production tooling with no operations included which would not be incorporated in regular produc tion processing in order to insure that commercially produced respirators would be identical in all respects to those tested and approved under these regulations. This suggestion was carefully considered. However, It was determined by the Bu reau and the Institute that such a re quirement might well operate to obstruct advances in respirator technology, since substantial investment would be neces sary to build production models with no adequate assurance of ultimate approval. Consequently it was decided to continue the testing of soundly designed and con structed prototype models; however, upon completion of such testing the Bu reau and the Institute may require the applicant to resubmit a production model for additional testing prior to issuance of a certificate of approval (see 11.11 (e) and 11.30). Subchapter B of Chapter I, Title 30, Code of Federal Regulations, amended by revoking Parts 11, 12, 13, 14, and 14a, and substituting therefor a new Part 11-- Respiratory Protective Devices; Tests for Permissibility; Fees, as set forth below i3 herewith promulgated and"shall become effective 60 days following publication in the Federal Register. W. T. Pecora, Acting Secretary of the Interior. February 17, 1972. Elliot L>. Richardson, Secretary of Health. Education, and Welfare. March 10, 1972. Sec. 1U 1112 11.2-1 1.3 ' 1.4 Subpari A--General Provisions Purpose. . Approved respirators. Selection. lit, use,and malnte- ,, nance of approved respirators. Definitions. . Incorporation by reference. Subpart B--Application for Approval 11.10 11.11 11.12 Application procedures. Contents of application. Delivery of respirators by appli cant; requirements. 11.20 11.21 11.23 ` Subpart C--Fees Examination, Inspection, and testing of complete respirator assemblies; fees. Examination, Inspection, and testing of respirator compo nents or subassemblies; fees. Unlisted fees; additional fees; payment by applicant prior to approval. Subpart D--Approval and Disapproval 11.30 1121 11.32 1123 11.34 HAS 11.38 Certificates of approval; Bcope of approval. Certificates of approval; contents. Notice of disapproval. Approval labels and markings; ap proval of contents; use. Revocation of certificates of ap proval. Changes or modifications of ap proved respirators; Issuance of modification of certificate of approval. Delivery of changed or modified approved respirator.' 11.40 11.41 11.42 11.43 ' Subpart E----Quality Control Quality control plans; filing . requirements. Quality control plans; contents. Proposed quality control plans; aprovsl 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; Scop* of Approvot; Atmospheric Hazards; Service Time 11.50 11.51 - 11.63 11.53 Types of respirators to be ap proved: scope of approval. Entry and escape, or escape only; classification. Respiratory hazards; classifica tion. Service time; classification. SubpartG--General Construction and Performance Requirements 11.80 11.61 Construction and performance re quirements; general. General construction require ments. 11.83 11.63 11.64 11.65 11.86 Component parts; minimum re quirements. ' Test requirements; general. Pretesting by applicant; approval of test methods by the Bureau. Conduct of examinations. Inspec tions, and tests by the Bureau and the Institute; assistance by applicant; observers; recorded data: public demonstrations. Withdrawal of applications; re fund of fees. FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022148 RULES AND REGULATIONS 6245 Subport H--Self-Contained Breathing Apparatus Sec. 11.95 Sec. Breathing tubes; minimum -re 11J124-9 Breathing tube te3t; minimum Sec. quirements. requirements. 11.70 Self-contained breathing appara- | 11J56 tus; description. Harnesses-, Installation and con 11.124- 10 Airflow resistance test. Type A struction; ' minimum require and Type AE supplled-alr res 11.71 Self-contained breathing appara ments. pirators; minimum require 11.73 tus; required components. 11.97 Breathing tubes; minimum re Gas mask containers; minimum ments. . requirements. 11.124- 11 Airflow resistance test; Type B 11.73 quirements. 11.98 Harnesses; Installation and con Half-mask facepieces, full face pieces, and mouthpieces; fit; and Type BE supplled-alr res pirators; minimum require struction; minimum. require minimum requirements. ments. 11-74 11.75 11.76 11.77 ments. - Apparatus containers; minimum requirements. Half-mask facepieces, full face pieces, mouthpieces; flt; mini mum requirements. Facepieces; eyepieces; minimum requirements. Inhalation and exhalation valves; minimum requirements. - 11.99 11.100 11.101 11.102 11.103-1 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. 11.124- 12 Airflow resistance test; Type- C supplled-alr respirator, conttnuous flow, class and Type CE suppUed-air respirator; minimum requirements. 11.124- 13 Airflow resistance test; Type C supplled-alr respirator, demand . class; minimum requirements. 11.124- 14 Airflow resistance test; Type C supplled-alr . respirator, pres 11.78 11.79 Head, harnesses; minimum re quirements. Breathing .. gas; minimum re 11.102-2 11.103-3 Exhalation valve leakage teat. sure-demand class; minimum Facepiece testa; minimum re ' requirements, * quirements. 11.124- 15 Exhalation valve leakage test. 11.79-1 quirements. 11.103-4 Dust, fume, mist, and smoke `11.124-16 Man tests for gases and vapors Interchangeability of oxygen and tests; canisters containing fil supplled-alr respirators; gen* 11.83 11.81 11.83 11.83 11.84 11.85 11.85-1 11.85-3 11.85-3 11.85-4 11.85-5 11.85-6 11.85-7 11-85-8 11.85-0 11.85-10 11.85-11 11.85-13 11.85-13 11.85-14 11.85-15 11.85-16 11.85-17 11.85-18 11.85-19 'air prohibited. Compressed breathing gas and liquefied breathing gas con tainers; minimum require ments. Gas pressure gages; minimum re quirements. Timers; elapsed time Indicators; remaining service life Indica tors; minimum requirements. Hand-operated valves; minimum requirements. Breathing bags; minimum re quirements. Self-contained breathing app&ra- tus; performance requirements; general. *. Component parts exposed to oxy gen pressures; minimum re quirements. Compressed gas filters; minimum requirements. Breathing bag test. Weight requirement. Breathing resistance test; Inhala tion. Breathing resistance test; exhala tion. Exhalation valve leakage test. Gas flow test; open-circuit ap ' paratus. Gas flow test; closed-circuit ap paratus. Servloe time test; open-circuit apparatus. Service time test; closed-circuit apparatus. Test for carbon dioxide `in In spired gas; open- and closed- circuit apparatus; maximum allowable limits. Tests during low temperature op eration. Man tests; testing conditions; general requirements. Man tests 1, 3, 3, sn4; require ments. Man test 5; requirements. Man test 6; requirements. Man tests; performance require ments. Gas tightness test; minimum re quirements. ters; minimum requirements. eral performance requirements. 11.102-5 Canister bench tests; minimum 11.124- 17 Man tests for gases and vapors; requirements. Type A and Type AE respira Subpart J--Supplied-Air Respirators tors; test requirements. 11.124-18 Man tests for gases and vapors; 11.110 Supplled-alr respirators; descrip- I Typo B and Type BE respira tlon. I tors; test requirements. 11.111 Supplled-alr respirators; required.1 11.124- 19 Man test for gases and vapors; components. Type C respirators, continuous- 11.113 Breathing tubes; minimum re- : flow class and Type CE sup qulrements. plled-alr respirators; test re 11.113 Harnesses; - installation and con quirements. struction; minimum require 11.124- 20 Man test for gases and vapors; ments. Type C supplled-alr respirators, 11.114 Respirator containers; minimum demand and pressure-demand requirements. classes; test requirements. 11.116 Half-mask facepieces, full face 11.124- 21 Tests for protection during abra pieces, hoods, and helmets; fit; sive blasting; Type AE, Type BE, minimum requirements. and Type CE supplled-alr respi 11.116 Facepieces, hoods, and helmets; rators; general performance re eyepieces; . minimum, require quirements. ments. 11.124- 22 Test for protection during abra 11.117 Inhalation and exhalation valves; sive blasting; Type AE sup check valves; minimum require " piled-air. respirator; test re ments. quirements. 11.118 Head harnesses; minimum re 11.124- 23 Test for'protection during abra quirements. sive blasting; Type BE sup 11.119 Head and neck protection; sup plled-alr respirators; minimum plled-alr respirator; test re quirements. 11.120 11.121 requirements. Air velocity and noise levels; hoods and helmets; minimum requirements. Breathing gas; minimum require 11.124- 24 Test for protection during abra sive blasting; Type CE supplled-atr respirator; test re quirements. ments. Subpart K'^-Dust, Fume, and Mist Respirator* 11.122 Air supply source; hand-operated 11.130 or motor driven air blowers; Type A supplled-alr respirators; 11.131 minimum requirements. 11.123 11.124 Terminal fittings or chambers; Type B supplled-alr respirators; minimum requirements. Supplled-alr respirators; perform 11.132 ' 11.133 ance requirements; general-. 11.124-1 Hand-operated blower test; mini mum requirements. 11.134 11.124-2 Motor-operated blower test; min imum requirements. 11.135 11.124r-3 Method of measuring the power and torque required to operate blowers. 11.136 11.124- 4 Type B supplled-alr respirator; minimum requirements. Dust, fume, and mist respirators; description. * Dust, fume and mist respirators; required components. Breathing tubes; minimum re qulrements. Harnesses; installation and con struction;* minimum require ments. ' ResplraNyr containers; minimum requirements. Half-mask facepieces, full face pieces, hoods, helmets, and mouthpieces; fit; minimum requirements. Facepieces, hoods, and helmets; eyepieces; minimum require ments. * Subpart 1--Gas Masks 11.124- 5 Type C supplled-alr respirator, 11137 Inhalation and exhalation valves; 11.99 Gas masks; description. continuous flow class; mini ^ minimum requirements. 11-91 Gas masks; required components. mum requirements. 11.133 Head harnesses; minimum re 11.92 Canisters and cartridges in paral 11.124- 6 Type C supplled-alr respirator, quirements. 11.93 lel; resistance requirements. Canisters and cartridges; color demand and pressure demand 11.139 class; minimum requirements. Air velocity and noise levels; hoods and helmets; minimum and markings; requirements. 11.124- 7 Air-supply line tests; minimum requirements. 11.94 Filters used with canisters and requirements. 11.140 Dust, fume, and mist respirators; cartridges; location; replace 11.124- 8 Harness test; minimum require performance requirements; ment-. ments. % general. FE0ERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022149 G246 RULES AND REGULATIONS Sec. n. HO-i Sec. Isoamyl acetate tightness test; | 11.102 dust, fume, and mist resplrators designed for respiratory j protection against fumes of ! 11.102-1 various metals having an air contamination level not less 11.162-3 Chemical cartridge respirators; performance requirements; gen eral. Breathing resistance test; mini mum requirements. Exhalation valve leakage test; and the National Institute for Occupa tional Safety and Health of respirators or changes or modifications of approved respirators; (b> to establish a schedule of fees to be charged each applicant for the inspections, examinations, and test than 0.05 milligram per cubic minimum requirements. ing conducted by the Bureau under the 11.140-2 meter; minimum requirements-. Isoamyl acetate tightness test; respirators designed for respira tory protection against dusts, fumed, and mists having an air contamination level les3 than 0.05 milligram per cubic meter, 11.162-3 11.162-4 11.102-6 Facepiece test; minimum require ments. Lacquer and enamel mist tests; respirators with Alters; mini mum requirements; general. Lacquer mist test; minimum re quirements. 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 or against radionuclides; mini 11.162-6 Enamel mist test; minimum re forth in this part; and (d> to specify mum requirements. quirements. minimum requirements and to prescribe 11.140-3 Air-purifying Alter tests; per 11.162-7 Dust, fume, and mist tests; res methods to be employed by the Bureau 11.140-4 11.140-6 formance requirements; gen eral. Silica dust test; single-use or-re usable Alters; minimum re quirements. Silica dust test; single-use dust respirators; minimum require ments. 11.162-8 pirators with Alters; minimum requirements; general. Bench tests; gas and vapor tests; minimum requirements; gen eral. 5ubpart M--Pesticide Respirators 11.170 Pesticide respirators; description. and by the applicant.in conducting in spections, examinations, and tests to determine the effectiveness of respirators used during entry Into or escape from hazardous atmospheres. 11.2 Approved respirators. 11.140-6 Lead fume test, minimum re 11.171 Pesticide respirators; required (a) Until March 30, .1974, respirators quirements. components. or combinations of respirators shall be 11.140-7 11.140-6 Silica mist test; minimum re quirements. Tests for respirators designed for respiratory protection against more tharr one type of dispersoid; minimum requirements. 11.172 11.173 11.174 Canisters and cartridges In paral lel; resistance requirements. Canisters and cartridges; color and markings; requirements. Filters used with canisters and cortridges; location; replace considered to be approved for use during entry into hazardous mine atmospheres, escape from - hazardous mine atmos pheres, or both, where such respirators or combinations of respirators are: (1) 11.140-9 AlrAow resistance tests; all dust, ment. The same in all respects as those respi fume, and mist respirators; 11.175 Breathing tubes; minimum re rators which have been approved after 11.140-10 11.140-11 minimum requirements. Exhalation valve leakage test; minimum requirements. DOP Alter test; respirators de signed as respiratory protection against dusts, fumes, and mists having an air contamination level less than 0.05 milligram per cubic meter and against 11.176 11.177 11.178 quirements. Harnesses; Installation and con struction; minimum require ments. Respirator containers; minimum requirements. 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, Half-mask facepieces, full face issued by the U.S. Bureau of Mines, De ipieces, hoods and helmets, and mouthpieces; At; minimum re- partment of the Interior, in accordance with the schedules set forth below; and 11.140-12 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 11.179 11.180 11.181 qulrements. Facepieces, hoods and helmets; eyepieces; minimum require ments. Inhalation and exhalation valves; minimum requirements. Head harnesses; minimum re (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; per cubic meter and against radionuclides; minimum re 11.182 quirements. 13D, September 22, 1956; and 13E, July Air velocity and noise levels; 19, 1968. quirements. Subpart l--Chemical Cartridge Respirators 11.150 11.161 11.152 11.153 11.164 11.155 11.156 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 11.183 11.183-1 11.183-2 11.183-3 11.183-4 11.183-5 11.183-6 hoods and helmets; minimum requirements. Pesticide respirators; performance requirements; general. Breathing resistance test; mini mum requirements. Exhalation valve leakage teat; minimum requirements. Facepiece test; minimum require ments. Silica dust test; minimum re quirements. Lead fume test; minimum re quirements. Dloctyl-phthalate test; minimum requirements. (ii) Gas Masks, Bureau of Mines Schedule 14F, April 23, 1955. (iii> Supplied-air Respirators, Bureat 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 23B, 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, struction; minimum require ments. 11.183-7 Bench tests; minimum require ments. escape from hazardous mine atmos pheres, or both, only where such respi 11.157 11.168 11.152- Respirator containers; minimum requirements. Half-mask facepieces, full face pieces, mouthpieces, hoods, and helmets; At; minimum require ments. Facepieces, hoods, and helmets; Authority: The provisions of this Part 11 issued under sections 202(h), 204, and 508 of the Federal Coal Mine Health and Safety Act of 1969 (30 U.S.C. 842(h), 844, and 957) and 38 Stat. 369, as amended 27 Stat. 081 (30 U.S.C. 3, 6, and 7). 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 tory protection, prescribed in this Part eyepieces; minimum require Subpart A--General Provisions 11; and (2) maintained in an approved 11.159 ments. Inhalation and exhalation valves; 11.X Purpose. condition. 11.160 minimum requirements. Head harnesses; minimum re The pin pose of the regulations con tained in this Part 11 is: (a) To establish 11.2--1 Selection, fit, u>e, and mainte nance of approved respirators. quirements. procedures and prescribe requirements In order to insure the maximum 11.101 Air velocity and noise levels; hoods and helmets; minimum requirements. which must be met in filing applications for joint approval by the Bureau of Mine3 amount of respiratory protection, ap proved respirators shall be selected. FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022150 RULES AND REGULATIONS 6247 fitted, used, and maintained in accord (n) A "facepiece" or "mouthpiece" is insect, rodent, nematode, fungus, reed, ance with the provisions of the American a respirator component designed to pro or other form of plant or animal life or National Standard Practices for Respir vide a gas-tight or dust-tight fit with the virus, and (2) any substance or mixture atory Protection, Z88.2, obtainable from face and may include headbands, valves, of substances (including solvents and American National Standards Institute, and connections for canisters, cartridges, impurities) intended for use as a plant Inc., 143C Broadway, New York, NY filters, or respirable gas source! regulator, defoliant, or desiccant, as de 10018. (o) "Final inspection" means that ac fined in the .Federal Insecticide, Fungi 11.3 Definitions. tivity carried out on a product after ail cide, and Rodenticide Act of 1947, as manufacturing and assembly operations amended (7 U.S.C. 135-135k), excluding As used in this part-- ,are completed to insure completeness and fumigants which are applied as gases or (a) "Air Contamination Level" means adherence to performance or other speci vapors or in a solid or liquid form as the standards of contaminant levels pre fications, including satisfactory appear pellets or poured liquids for subsequent scribed by the Secretary of Labor in ac ance. release as gases or vapors. cordance with the provisions of the Occu (p) "Fume" means a solid condensa (cc) "Powered air-purifying respira pational Safety and Health Act of 1970 tion particle, generally less than 1 mi tor" means a device equipped with a face (Public Law 91-596; 84 Stat. 1590). crometer in diameter. piece, hood, or helmet, breathing tube, (b) "Applicant" means an individual, (q) "Gas" means an aeriform fluid canister, cartridge, filter, canister with partnership, company, corporation, asso which is in a gaseous state at ordinary filter, or cartridge with filter, and .a ciation, or other organization that de temperature and pressure. blower. signs, manufactures, assembles, or con (r) "Hazardous atmosphere" means: (dd) "Radionuclide" means an atom trols the assembly of a respirator and (1) Any atmosphere containing a toxic identified by the constitution' of its nu who seeks to obtain a certificate of ap or disease producing gas, vapor, dust, cleus (specified by the number of pro proval for such respirator. , fume, mist, or pesticide, either immedi tons Z. number of neutrons N, and en (c) "Approval" means a certificate or ately or not immediately dangerous to ergy, or, alternatively, by the atomic formal document issued by the Bureau life or health: or (2) any oxygen-defi number Z, mass number A=(N+Z), and and the Institute stating that an individ cient atmosphere. atomic mass) which exists for a measur ual respirator or combination of respi (s) A "hood" or "helmet" is a respira able time; decays or disintegrates spon rators has met the minimum require tor component which covers the wearer's taneously, emits radiation, and results in ments of this Part 11, and that the appli head and neck, or head, neck, and the formation of new nuclides. cant is authorized to use and attach an shoulders, and is supplied with incoming (ee) "Respirable dust" means a dust a-pproval label to any respirator, respira respirable air for the wearer to breathe. particle aerodynamically capable of tor container, or instruction card for any It may include a headhamess and con reaching the terminal airways of the respirator manufactured or assembled nection for a breathing tube. lung. in conformance with the plans and spec (t) "Immediately dangerous to life or (ff) "Respirator" means any device ifications upon which the approval was health" means conditions that pose an designed to provide the wearer with based, as evidence of such approval. immediate threat to life or health or con respiratory protection against inhala (d) "Approved" means conforming to ditions that pose an immediate threat of tion of a hazardous atmosphere. the minimum reainrements of this severe exposure to contaminants, such (gg) "Smoke" means the products of Part 11. as radioactive materials, which are likely Incomplete combustion of organic sub (e) "Auxiliary equipment" means a to have adverse cumulative or delayed stances in.the form of solid and liquid self-contained breathing apparatus, the effects on health. particles and gaseous products in air, use of which is limited in underground (u) "Incoming inspection" means the usually of sufficient concentration to per mine rescue and recovery operations to activity of receiving, examining, and ac ceptibility obscure vision. situations where the wearer has ready access to fresh air and at least one crew equipped with appioved self-contained breathing apparatus of 2 hours or longer rating, is in reserve at a fresh-air base. cepting only those materials and parts whose quality conforms to specification requirements. (v) "In-process inspection" means the control of products at the source of pro (hh) "Vapor" means the gaseous state of a substance that is solid or liquid at ordinary temperature and pressure. 11.4 Incorporation Iiv reference. (f) "Bureau" means the U.S. Bureau duction and at each step of the manu In accordance with 5 U S.C. 552(a) (1), of Mines, Department of the Interior. facturing process, so that departures the technical publications to which (g> "Compressed breathing gas" from specifications can be corrected be reference is made in this Part 11, and means oxygen or air stored ir. a com fore defective components or materials which have been prepared by organiza pressed state and supplied to the wearer are assembled into the finished product. tions other than the Bureau of Mines, are in gaseous form. (w) "Institute" means the National hereby Incorporated by reference and (h) "Concentration limits for radio Institute for Occupational Safety and made a part hereof. The incorporated nuclides" means the concentration limits Health. Department of Health, Educa technical publications are available foi set forth in Appendix B, Table 1, Column tion, and Welfare. examination at Approval and Testing, I of Title 10 CFR Part 20. by the Atomic (x) "Liquefied breathing gas" means Health and Safety Technical Support Energy Commission. oxygen or air stored in liquid form and Center, Bureau of Mines, 4800 Forbes (i) "dBA" means sound pressure levels supplied to the wearer in a gaseous form. Avenue, Pittsburgh, Pa. In addition, in decibels, as measured with the A- (y) "Mist" means a liquid condensa copies of the American National Stand weighted network of a standard sound tion particle with a size ranging from ard Practices for Respiratory Protection. level meter using slow response. submicroscopic to macroscopic. Z88.2, are available for examination in (j) "DOP" means a homogenous liquid (z) "Not immediately dangerous to life aerosol, having a particle diameter of or health" means any hazardous atmos 0. 3 micrometer, which is generated by phere which may produce physical dis vaporization and condensation of dioctyl comfort immediately, chronic poisoning phthalate. after repeated exposure, or acute adverse (k) "Dust" means a solid mechanically physiological symptoms after prolonged my-quoad particle with a size ranging exposure. 1. \ :r. .;u'_m!croscopic to macroscopic. ta.ti "Oxygen deficient atmosphere" Respirators "for entry into and means an atmosphere which contains an escape from" means respiratory devices oxygen paitial pressure of less than 143 providing protection during entry into millimeters of mercury (19.5 percent by and escape from hazardous atmospheres. volume at sea level). Respirators "for escape only" (bb) "Pesticide" means (1) any sub means respiratory devices providing pro stance or mixture of substances (includ every Coal Mine Health and Safety Dis trict and Subdistrict Office. Subpari B--Application-for Approval 11.10 Application prrwcdiiri*-. (si) Inspection, ex imi: ; ';.:ul t-.st ing loading to the r.;;;.:c..of types of respirators class'nod ;n So part F of tills part shall be unde:trite:', 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 tection only during escape from hazard ing solvents and impurities) intended to Approval and Testing. Bureau of Mines. ous atmospheres. prevent, destroy, repel, or mitigate any 4800 Forbes Avenue, Pittsburgh, PA FEDERAL REGISTER, VOL 37, HO. 59--SATURDAY. MARCH 25, 1972 CAPCO JEN 0022151 6248 RULES AND REGULATIONS 15213, and shall be accompanied by a check, bank draft, or money order In the amount specified in Subpart C of thispart payable to the order of the U.S. Bureau of Mines. (c) Except as provided in 5 11.64, the ten request within 30 days after notice of approval. If no such request is made, the respirators will be disposed of by the Bureau in such manner as it deems appropriate. (e) Where a respirator fails to meet respirator assemblies which are not listed in 5 11H0, or for the examination, in spection, and testing of respirator com ponents or subassemblies which are not listed in 5 11.21, shall be accompanied by the following deposits: examination, inspection, and testing of the requirements for approval set forth (1) Complete respirator assem all respirators shall be conducted by Ap in this part, all respirators and compo bly .........................-................... 31,500 proval and Testing, Bureau of Mines, nents delivered in accordance with this (2) Each Individual component or Pittsburgh, Pa. 15213. section may be returned to the appli subassembly________________ 600 (d) Applicants, manufacturers, or their representatives may visit or com municate with Approval and Testing in order to discuss the requirements for ap proval of any respirator or the proposed designs thereof. No charge shall be made 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. cant at his own expense, upon written request within 30 days after notice of disapproval. If no such request is made, the respirators will be disposed of by the Bureau in such manner as it deems appropriate. Subpart C--Fees 11.20 Examinalion, inspection and testing of complete respirator assem (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 tbe respiratory equipment examined, in 11.11 Contents of application. blies; foes. spected, or tested. (a) Each application for approval shall contain a complete written description of the respirator for which approval 13 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 m 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 thi3 part. (d) Each application shall contain a statement that the respirator has been pretested by the applicant as prescribed in 11.64, and shall include the results of such tests. (e) Each application for approval shall contain a statement that the respirator and component parts submitted for ap proval are either (1) prototypes, or (2) made on regular production tooling, with 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 escape, 1 hour or more- 33,600 (2) Entry and escape, less than J hour ___________ __ _________ (3) Escape only 2,000 (b) Gas masks, including pesti cide gas masks-- (1) Single hazard(2) Type N 4,100 (c) SuppUed-airrespirators_______ (d) Dust, fume and mLst respi rators-- (1) Single particulate hazard hav ing an Air Contamination. Level more than 0.05 mg./ m.* or 2 mlUlon particles per cubic foot____________________ (2) Combination particulate haz ards having an Air Contami nation Level more than 0.05 mg./m.* or 2 mUllon par ticles per cubic foot_________ (3) Particulate hazards having an Air Contamination Lovel less than 0.05 mg./m.* or 2 million particles per cubic 2,760 1,100 750 600 750 (c) The fees charged for the exami nation, inspection, and testing of un listed respirator assemblies, unlisted in dividual respirator components or sub assemblies, and for the additional exam ination, inspection, and testing of listed respirator assemblies and components or subassemblies shall be at the rate of $100 per day for each man-day required to be expended by the Bureau. (d) Upon completion of all examina tions, inspections, and testa 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, inciuding-retesting subse quent to disapproval, the Bureau shat' 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. .no operation included which will not be foot, radon daughters____ 1,250 Subpart D--Approval and .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 5 11.10, be advised by the Bureau of the total number of respirators and component parts required for testing. (b) The applicant shall deliver, at his own expense, the number of completely assembled respirators and component parts required for testing, to Approval and Testing, Bureau of Mines, Pitts burgh, Pa. 15213. (;: B-piintcrs and component parts sub::'-:.cu fur approval must be made from materials specified in the applica tion. (4) All dusts, fumes and mists_ (e) Chemical cartridge respira tors (f) Paint spray respirators_______ (g) Pesticide respirators__________ 2,000 1,160 1,600 1,600 11,21 Examination, inspection and testing of respirator components or subassemblies; fees. Except as provided in 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 *150 (b) Canisters (c) Cartridges_______________________ (d) Filters 650 (e) Hoses 250 (f) Blowers (g) Harnesses 100 900 600 250 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 wifi not Issue certificates of approval for any respirator component or for any respira tor subassembly. (c) The Bureau and the Institute shall not issue an informal notification of approval. However, if the application (d)One completely assembled respira tor approved under the provisions of this part may be retained by the Bu reau as a laboratory exhibit, the remain ing respirators may be returned to the 11.22 Unli-dcd fees; additional fees; pajment by applicant prior to ap proval. (a) Applications for the examination, for approval, submitted in accordance with 11.11, states that the submitted respirator and component parts are only prototypes, the Bureau will examine, in spect, and test such respirator and com - app1 icant at his own expense, upon writ inspection and testing of complete ponent parts in accordance with the FEDERAL REGISTER. VOL. 37, NO. 5?--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022152 RULES AND REGULATIONS 6249 provisions of this Part 11. If, upon com pletion of such examinations, Inspections and tests, it is found that the prototype meets the minimum requirements set forth in this part, the Bureau and the Institute may inform the applicant, in writing, of the results of the examina tions, inspections, and tests, and may require him to resubmit respirators and respirator for which approval was sought with a view to the possible correction of any such defects. (c) The Bureau and the Institute shall not disclose, except to the applicant or as required by statute or regulation, any data, findings, or other information'with respect to any respirator for which a notice of disappoval is issued. required by the Bureau and the Institute to assure quality control and proper use of the respirator, be labeled distinctly to show the name of the applicant, and the name and letters or numbers by which the respirator or respirator component is designated for trade purposes, and the lot number, serial number, or approxi mate date of manufacture. component parts made on regular pro duction tooling, with no operations in cluded which will not be incorporated in regular production processing, for fur ther examination, inspection, and test ing, prior to issuance of the certificate of approval. (d) Applicants required to resubmit respirators and component parts made on regular production tooling, with no operation included which will not be Incorporated in regular production proc essing, shall be charged fees in accord ance with Subpart C of this part. 11.33 Approval labels and markings; approval of contents; use. (a) Full-scale reproductions of ap proval labels and markings, and a sketch or description of the method of applica tion and position on the harness, con tainer, canister, cartridge, filter, or other component, together with Instructions for the use and maintenance of the respirator shall be submitted to the Bu reau and the Institute for approval. (b) Approval labels shall bear the seals of the U.S. Bureau of Mines and the Department of Health, Education, and 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. Welfare, the applicant's name and ad dress, an approval number assigned by 11.35 Changes or modification of ap proved respirators; issuance of mod (a) The certificate of approval shall the Bureau, and, where appropriate, re ification of certificate of approval. contain a classification and a description of the respirator or combination of respirators for which it is issued, as provided in this part. (b) The certificate of approval shall specifically set forth any restrictions or limitations on the respirator's use in hazardous atmospheres. (c) Each certificate of approval shall be accompanied by the drawings and specifications (and lists thereof) sub mitted by the applicant in accordance with 5 11.11. These drawings and specifications shall be incorporated by reference in the certificate of approval, and shall be maintained by the applicant. The drawings and specifications listed in each certificate of approval shall set forth in detail the design and construction requirements which shall be met by the applicant during commercial production of the respirator. id) Each certificate of approval shall be accompanied by a reproduction of the approval label design to be employed by the applicant with each approved respirator, as provided in 11.33. (e) No test data or specific laboratory findings will accompany any certificate of approval, however, the Bureau will re lease pertinent test data and specific findings upon written request by the ap plicant, or as required by statute or regulation. (f) Each certificate of approval shall also contain the approved quality control plan as specified in 11.42. 11.32 Notice of disapproval. 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 typo Label type Location SoH*cont:uuM Entire......... , ITnrnpfts assembly breathing uppa- -- ami canister ratus. (where applicable). Qas mask................ Entire_____, Mask container and canister. Supplled-alr respl- Entire.......... Respirator container rator. or instruction card. ' Dust, furw\ and Entire....... . Respirator container mist respirator. and filter con tainer. Abbrevi Filters. ated. Chemlcat*cartrldge Entire........ . Respirator con- respirator, includ- tamer, cartridge Ing paint spray container, and respirator. filter containers (where appli cable). . Abbrevt- Cartridges and fil- ated. ters and filter containers. Pesticide respirator. Entire........ Respirator con- talner, and car tridge and filter containers. Abbrevt- Cartridges and ated. filters. (a) Each applicant may, if he desires to change any feature of an approved respirator, request a modification of the original certificate of approval issued by the Bureau and the Institute for such respirator by filing an application for such modification in accordance with the provisions of this section. (b) Applications shall be submitted as for an original certificate of approval, with a request for a modification of tire existing certificate to cover any proposed change. (c) The application shall 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. (e) 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 eximinations, inspections, and tests re- 1Hired to be conducted in accordance v.-p;-. provisions of this part, it is fou:'.-: ..-.at the respirator docs not meet the minimum requirements set forth in this part, the Bureau and the Institute shall Issue a written notice of disapproval to the applicant. (b) Each notice of disapproval shall (f) The use of any Bureau and Insti tute approval label obligates the appli cant to whom It is issued to maintain or cause to be maintained the approved quality control sampling schedule and the acceptable quality level for each charac teristic tested, and to assure that it is manufactured according to the drawings and specifications upon which the certi ficate of approval is based. approval labels. 1I.3(> Delivery of changed or modified approved respirator. An approved respirator for which a formal certificate of modification lias been issued shall be delivered, with proper markings and containers, by the applicant to the Bureau of Mines, Ap proval and Testing. 4800 Forbes Avenue. be accompanied by all pertinent data or (g) Each respirator, respirator com Pittsburgh. PA 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 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022153 6250 RULES AND REGULATIONS Subpart E--Quality Control a defect that is a departure from estab ty control test methods, equipment, and lished standards and has little bearing records. 11.40 Qnality control plana, filing re on the effective use or operation of the (c) The Bureau and the Institute re quirements. . respirator. serve the right to jointly revoke, for As a part of each application for ap (e) The quality control inspection test cause, any certificate of approval when proval or modification of approval sub method to be used by the applicant or it is found that the applicant's quality mitted pursuant to this part, each appli his agent for each characteristic re control test methods, equipment, or rec cant shall file with the Bureau and the quired to be tested shall be described in ords do not insure effective quality con Institute a proposed quality control plan detail. ' trol over the respirator for which the which shall be designed to assure the (f) Each item manufactured shall be approval was issued. quality of respiratory protection pro vided by the respirator for which ap proval is sought. 100 percent inspected for defects in all critical characteristics and all defective items shall be rejected. Subpart F--Classification of Approved Respirators; Scope of Approval; At 11.41 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 (g) The Acceptable Quality Level (AQL) for each major or minor defect so classified by the applicant shall be: (1) Major A. 1.0 percent; . (2) Major B. 2.5 percent; and (3) Minor. 4.0 percent. (h) Except as provided in paragraph (i) of this section, inspection level n as 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 mentations, and changes: (3) control described in MIL-STD-105D, or inspec Bureau in accordance with the provi and calibration of measuring and test tion level IV as described in MIL-STD- sions of Subparts G through M of this equipment: (4) control of purchased 414, shall be used for major and minor part, and have been found to provide material to include incoming inspection: characteristics and 100 percent inspec respiratory protection for fixed periods (5) lot identification, control of proc tion for critical characteristics. of time against the hazards specified In esses, manufacturing, .fabrication, and (i) Subject to the approval of the such approval. 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. Cb) Each provision for incoming and final inspection in the quality control plan shall include a procedure for the selection of a sample of respirators and the components thereof for testing, in accordance with procedures set forth in Military Standard MIL-STD-105D, `'Sampling Procedures and Tables for Inspection by Attributes," or Military Standard MIL-STD-414, "Sampling Procedures and Tables for Inspection by Variables for Percent Defective," or an approved equivalent sampling proce dure, or an approved combination of sampling procedures. Incoming bulk raw material inspection or verification of specification, and in-process inspection shall be sufficient to ensure control of product quality through the manufac turing cycle. Bureau and the Institute, where the quality control plan provisions for raw material, processes, manufacturing, and fabrication inspection are adequate to in sure control of finished article quality, destructive testing of finished articles may be conducted at a lower level of in spection than that specified in para graph (h) of this section. 11.42 Proposed qualify control plans; approval Iiy the Bureau and the Insti tute. (a) Each proposed quality control plan submitted in accordance with this subpart shall be reviewed by the Bureau and the Institute to determine its effec tiveness in insuring the quality of res piratory protection provided by the respirator for wliich an approval Is sought. (b> If the Bureau and the Institute de termine that the proposed quality control plan submitted by the applicant will not insure adequate quality control, the Bu 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 Respiratory hazards; classifica tion. Respirators described in Subparts H through M of this part shall be classified as approved for use against any or all of the following respiratory hazards: (a) Oxygen deficiency; (b) Gases and vapors; (c) Particles, Including dusts, fumes and mists: and ' (d) Pesticides. (c) The sampling procedure shall in clude a list of the characteristics to be tested by the applicant or his agent. (d) The characteristics listed in ac cordance with paragraph (c) of this sec tion shall be classified according to the potential effect of such defect and grouped Into the following classes: (1) Critical. A defect that judgment and experience indicate Is likely to re sult in a condition immediately hazard ous to life or health for Individuals using or depending upon the respirator; (2) Major A. A defect, other than critical, that is likely to result in failure to the degree that the respirator does not provide any respiratory protection, or a -or that reduces protection and reau and the Institute shall require the applicant to modify the procedures and testing requirements of the plan prior to approval of the plan and issuance of any certificate of approval. fc) 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. 11.43 Quality control records;, review by the Bureau and the Institute; rev ocation of approval. Ca) The applicant shall keep quality control ir..-r<ociion records sufficient to carry out tiro procedures required in 11.53 Service time; classification. (a) Respirators described in Subparts H through M of this part shall be classi fied, where applicable, as approved for use during the following prescribed service times: (1) Four hours; (2) Three hours: (3) Two hours; (4) One hour; (5) Forty-five minutes; (6) Thirty minutes; (7) Fifteen minutes; (8) Ten minutes; (9) Five minutes; (10) Three minutes. (b) Other service times may be pre scribed by the Bureau and the Institute. is nr ds eatable by the user: MIL-STD-lOaD or MIL-STD-414, or an Subparf G--General Construction and (31 Major B. A defect, other than Ma approved equivalent sampling procedure. Performance Requirements jor A or critical, that is likely to result in (b) Hie Bureau and the Institute re reduced respiratory protection, and is serve the right to have their representa 11.60 Construction and perfornianc detectable by the user; and . tives inspect the applicant's quality con requirements; general. (4) Minor. A defect that is not likely trol test methods, equipment, and rec (a) The Bureau and the Institute shall .to materially reduce the usability of the ords, and to interview any employee or Issue approvals for the types of respira respirator for its intended purpose, or agent of the applicant in regard to quali tors described in Subparts H through M FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 2S, 1972 CAPCO JEN 0022154 RULES AND REGULATIONS 6251 of this part which have met the mini mum requirements set forth for such respirators in this Part 11. (b) In addition to the types of respira tors specified in SUbparts H through M, the Bureau and the Institute shall issue approvals for other respiratory protec tive devices not specifically described in this Part 11 suDiect to such additional requirements as may be imposed in ac cordance with 5 11.63(c). 11.(11 General con*., action require (c) In addition to the minimum re quirements set forth in Subparts H through M of tlris 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 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' ments* proval, the Bureau will notify the appli such public tests and demonstrations of (a) Respirators will not he accepted cant in writing of these additional re the approved respiratory equipment as by the Bureau for examination, inspec quirements, and necessary examinations, is deemed appropriate. tion and testing unless they are designed on sound engineering and scientific prin ciples, constructed of suitable materials and evidence good workmanship. (b) Respirator components which come Into contact with the wearer's skin shall be made of nonirritating materials. (c) Components replaced during or after use shall be constructed of mate rials which will not be damaged by nor mal handling. <d) Mouthpieces, hoods, helmets, and facepieces, except those employed in sinCle-use respirators, shall be constructed of materials which will withstand re peated disinfection as recommended by the applicant in his instructions for use of the device. <e) The components of each respira tor approved by the Bureau and the In stitute for use where permissibility is re quired shall meet the requirements for permissibility and intrinsic safety set forth in Part 18, Subchapter D of this chapter (Bureau of Mines Schedule 2G). 11.02 Component parts; minimum re quirements. (a) Tire component parts of each respirator shall be: (1) Designed, constructed, and fitted to insure against creation of any hazard to the wearer; (2) Assembled to permit easy access for inspection and repair of functional parts: and (3) Assembled to permit easy access to parts which require periodic cleaning and disinfecting. (b) Replacement parts shall be de signed and constructed to permit easy installation and to maintain the effec tiveness of the respirator. inspections, or tests, stating generally the reasons for such requirements, ex aminations, inspections, or tests. 11.64 Pretesting by applicant; ap proval of test methods by the Bureau. (a) Prior to making or filing any ap plication for, approval or modification of approval, the applicant shall conduct, or cause to be conducted, examinations. In spections, and tests of respirator per formance which are equal to or exceed the severity of those prescribed in this part. (b) With the application, the appli cant shall provide a statement to the Bureau showing the types and results of the examinations, inspections, and tests required under paragraph (a) of this section and state that the respirator meets the minimum requirements of Subparts H through M of this part, as applicable. Complete examination, in spection. and test data shall be retained on file by the applicant and be sub mitted, upon request, to the Bureau. (c) The Bureau may, upon written request by the applicant, provide draw ings and descriptions of its test equip ment and otherwise assist the applicant in establishing a test laboratory or-se curing the services of a testing agency. (d) The Bureau will not issue an ap proval to the applicant until It has vali dated the applicant's test results. 11.63 Conduct jf examinations, in spections, and tests by the Bureuu and tlie 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 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 11.22 and assessed against the fees submitted by the applicant. If the total amount assessed is less than the fees submitted, the Bureau shall refund the balance together with a statement of the charges made for services rendered. Cubpart H--Self-Contained Breathing Apparatus 11.70 Self-conlaineil Lrcalhing appa ratus; description. (a) Self-contained breathing appara tus, including all completely assembled, portable, self-contained devices designed for use as respiratory protection during entry into and escape from or escape only from hazardous atmospheres, are de scribed as follows: (1) Closed-circuit apparatus. An ap paratus of the type in which the exhala tion is rebreathed by the wearer after the carbon dioxide has been effectively removed and a suitable oxygen concen tration restored from sources composed of: (1) Compressed oxygen; or (ii) Chemical oxygen; or 11.63 Test requirements; general. sole direction and control of the Bureau (iii) Liquid-oxygen. (a) Each respirator and respirator component shall when tested by the applicant and by the Bureau, meet the applicable requirements set forth in Sub parts H through M of this part. (b) Where a combination respirator Is assembled from two or more types of respirators, as described in this part, f the individual respirator types and the Institute. (b) The Bureau and the Institute may. as a condition of approval, require the assistance of the applicant or agents of the applicant during the assembly, dis assembly, or preparation of any respira tor or respirator component prior to test ing or in the operation of such equip ment during testing. (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 poritive during c-shala- :::h have been combmed shall, as '.cj Only Bureau and Institute parj**r.- 'ion and negative during ..Ir.'ri.n. r.'v'ioable, meet the minimum require ments for such respirators set forth in Subparts H through M of this part, and .v.xh combination respirators, except as .v'vc-.fied in 5 11.70(b)(2), will be classi fied by the type of respirator in the com nel, persons assisting the Bureau pur suant to paragraph (b) of this section, and such other persons as are requested by the Bureau, the Institute, or the appli cant to be observers, shall be present dur (:i) Pressure-demand-type apparatus. An apparatus in which the pressure in side the facepiece In relation to the Im mediate environment Is positive during both Inhalation and exhalation. bination which provides the least pro ing any examination, inspection, ov test (b) The following respirators may be tection to the user. conducted prior to the Issuance of an ap classified as designed and approved for No. 69--Pt, n- FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAP CO JEN 0022155 6252 RULES AND REGULATIONS use during emergency entry into a haz where applicable, provide for holding a vide adequate tension during suspension ardous atmosphere: A combination respi full facepiece in the ready position when and an even distribution of pressure over rator -which includes a self-contained not in use. the entire area in contact with the face breathing apparatus and a Type "C" or Type "CE" supplied air respirator, where (1) the self-contained breathing appara tus is classified for 3-, 5-, or 10-mlnute service time and the air line supply is used during entry, or (2) the selfcontained breathing apparatus is classi fied for 15 minutes or longer service time and not more than 20 percent of the rated capacity of the air supply is used during entry. (c) Self-contained breathing appara tus classified for less than 1 hour serv ice time will not be approved for use during underground mine rescue and recovery operations except as auxil iary equipment. (d) Self-contained breathing appara tus classified for less than 30 minutes' service time will not be approved for use as auxiliary equipment during un derground mine rescue and recovery operations. 11,71 Self-contained breathing appara tus; required components. (a) Each self-contained- breathing apparatus described in 11.70 shall, where its design requires, contain, the following component parts; (1) Facepiece or mouthpiece, and nosecllp;. (2) Respirable breathing gas con 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 (b) Mouthpieces shall be equlppe where applicable, with adjustable an>_ replaceable harnesses designed and con structed to hold the mouthpiece in place. 11.79 Breathing gas; minimum re quirements. nation of the respirator it contains, and (a) Breathing gas used to supply ap all appropriate approval labels. paratus shall be respirable and contain (b) Containers supplied by the appli no less than 19.5 (dry atmosphere) cant for- carrying or storing self- volume percent of oxygen. contained breathing apparatus will be (b) Oxygen, including liquid oxygen, inspected, examined, and tested as com shall meet the minimum requirements ponents of the respirator for which ap for medical or breathing oxygen set proval is sought. forth in the U.S. Pharmacopeia. (c) Containers for self-contained .(c) Compressed, gaseous breathing air breathing apparatus shall be designed shall meet the applicable minimum and constructed to permit easy removal grade requirements for Type I gaseous of the apparatus. air set forth in the Compressed Gas As 11.75 Tlnlf-mask facepieces, full face pieces, mouthpieces; fit; minimum requirements. (a) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial shapes and sizes, either (1) by providing more than one facepiece size, or (2) by 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 II liquid air set forth in the Compressed Gas Asso ciation Commodity Specification for Air, G-7.1 (Grade B or higher quality). providing one facepiece size which will 11.79--1 Interchangeability of oxygen fit varying facial shapes and sizes. and air prohibited. (b) Full facepieces shall provide- for Approvals shall not be issued by the the optional use of corrective spectacles Bureau and the Institute for any appa or lenses which shall not reduce the ratus, combination of respirator assem tainer; (3) Supply of respirable breathing respiratory protective qualities of the apparatus. blies,, or any apparatus or respirator com ponent which is designed or constructed gas; (c) Apparatus with mouthpieces shall to permit the interchangeable .use (4) Gas pressure or liquid level gages; be equipped with noseclips which are oxygen and air. (5) Timer: . (6) Remaining service life indicator securely attached to the mouthpiece or apparatus and provide- an airtight seal. 11.80 Compressed breathing gas and liquified breathing gas containers; or warning device; (d) Facepieces shall be designed to minimum requirements. (7) Hand-operated valves; (8) Breathing bag: (9) Safety relief valve or safety relief system; and (10) Harness. (b) The components of each. self- contained breathing apparatus shall meet the minimum construction require ments set forth in Subpart G of this ..part. 11.72 Breathing tubes; minimum re quirements. - (a) Flexible breathing tubes used in conjunction with breathing apparatus shall be designed and constructed to prevent: (1) Restriction of free head move prevent eyepiece, spectacle, and lens fogging. 11.76 Facepieces; eyepieces; mini mum requirements. (a) Facepieces shall be designed and constructed to provide adequate vision which is not distorted by the eyepiece. (b) All eyepieces shall be designed and constructed to meet the impact and pen etration requirements specified in Fed eral Specification, Mask, Air Line, and Respirator, Air Filtering, Industrial, GGG-M-125d. October 11, 1965. Tnis Federal Specification is available from the Government Printing Office or the General Services Administration. (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. ment; (2) Disturbance of the fit of face pieces and mouthpieces; (3) Interference with the wearer's ac tivities; and, (4) Shutoff of airflow due to kinking, or from chin or arm pressure. 1 !.7` installation anil r*viminimum requirements. a i Each apparatus shall, where nec essary, be equipped with a suitable 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 influ ence, and (2) Designed and constructed to pre vent inward leakage of contaminated air. (d) Compressed breathing gas con tained valves or a separate charging system or adapter provided with each apparatus shall be equipped with outlet threads specified for the service by the American National Standard for Com pressed Gas Cylinder Valve Outlet and Inlet Connections, E57.1 (1985), obtain able from American National Standards Institute, Inc., 1430 Broadway, New York. NY 10018. harness designed and constructed to hold the components of the apparatus in po sition against the wearer's body. <b) Harnesses shall be designed and constructed to permit easy removal and 11.78 Head ha-riC'-c-; minimum re quirements. (a) Facepieces shall be equipped with adjustable and replaceable head har 11.81 Gas pressure gages; minima' requirements. (a) Gas pressure gages employed on compressed breathing gas containers shall be calibrated in pounds per square replacement of apparatus parts, and. nesses designed and constructed to pro Inch. FEOERAL REGISTER, VCl. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022156 RULES AND REGULATIONS 6253 (b) Liquid-level gages shall be cali brated in fractions of total container capacity, or in unite of liquid volume. (c) Gas pressure gages other than those specified In paragraphs (a) and (b) of this section shall be calibrated in: (1) Pounds per square inch, or (2) In fractions of total container capacity, or (3) Both in pounds per square inch which indicate the remaining liquid con tent in the container. (b) Tire 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 (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. 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) The 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. (e) (1) Stem-type gages shall be onds or more after the preset time has elapsed. (e) Remaining service-life indicators or warning devices shall be provided in addition to a pressure gage on -com pressed gas self-contained breathing ap paratus, except apparatus used for escape only, and shall operate automat ically without preadjustment by the wearer. (f) Each remaining service-life indi cator or warning device shall give an alarm when the remaining service life (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 hags shall be installed in a location which will protect them from damage- or collapse by external forces, except on apparatus classified for escape only. readable by sight and by touch and shall of the apparatus is reduced within a 11.85 Self-contained breathing appa have a stem travel distance of not less range of 20 to 25 percent of its rated ratus; performance requirements; than one-fourth inch between each service time. general. graduation. (2) A minimum of five graduations shall be engraved on the stem of each gage and these graduations shall include readings for empty, one-quarter, onehalf, three-quarters, and full. (3) Stem gaga readings shall not vary 11.33 Hand-operated valves; minimum requirements. (a) Hand-operated valves shall be de signed and constructed to prevent re moval of the stem from the valve body during normal usage to insure against Self-contained breathing apparatus and the individual components of each such device shall as applicable meet the requirements speoified in 55 11.85-1 through 11.85-19. 11.85--1 Component parts exposed to from true readings by more than one- a sudden release of the full pressure of sixteenth inch per inch of stem travel. the container when the valve is opened. oxygen pressures; minimum require ments. (f) The loss of gas through a broken gage or severed gage connection shall not exceed 70 liters per minute when the cylinder pressure is 6.900 kN/mr 71.000 pounds per square inch ga.ee) or when the liq'iid level is at one-half. (g) Where gages are connected to the (b) Valves shall be designed or posi tioned to prevent accidental opening and closing, and damage from external forces. (c) Valves operated during use of the apparatus shall be Installed in locations where they can be readily adjusted by Each applicant shall certify that the materials employed in the construction of component parts exposed to oxygen pressures above atmospheric pressure are safe and compatible for their intended use. appa.ratus through a gage iine, the gage the wearer. 11.85--2 Compressed gas fillers; mini and line shall be capable of being iso (d> Main-line valves, designed and mum requirements. lated from the apparatus except where constructed to conserve gas in the event All self-contained breathing apparatus the failure of the gage or line would not of a regulator or demand valve failure, using compressed gas shall have a filter impair the performance or service life shall be provided in addition to gas con downstream of the gas source to effec of the apparatus. tainer valves, except when such failure tively remove particles from the gas (h> Oxygen piessure gages shall have will not affect performance. stream. the words, "Oxygen" and "Use No Oil," marked prominently on the gage. (e) Hand-operated bypass systems designed and constructed to permit the 11.85--3 Breathing bag test. (1) (1) Apparatus using compressed breathing gas, except apparatus classi fied for escape only, shall be equipped with gages visible to the wearer which indicate the remaining gas content in the container. (2) Apparatus using liquefied breath ing gas, except apparatus classified for escape only, shall be equipped with gages visible to the wearer which indicate the remaining liquid content in the con tainer: however, where the liquid con tent cannot be rapidly vented, and the service time of the device begins imme diately after filling, a timer shall be wearer to breathe and to conserve his gas supply In the event of a regulator or demand valve failure, shall be provided where necessary. (f) Valves installed on apparatus shall be clearly distinguishable from one another by sight and touch. (g) The bypass system valve control shall be colored red. (h) A main-line or bypass valve or system will not be required on apparatus for escape only. (i) Safety relief valves or systems, de signed and constructed to release excess pressure in the breathing circuit, -shall (a) Breathing bags will be tested In an air atmosphere saturated with gasoline vapor at room temperature (24-30* C./ 75--85* F.) for a continuous period of twice the rated time of the apparatus (except for apparatus for escape only where the test period shall be the rated time of the apparatus). (b) The bag will be operated during this test' by a breathing machine with 24 respirations per minute and a minutevolume of 40 liters. <c) A breathing machine cam with a work rate of 622 kg.-m./min. will be used.* provided in place of ? visible gage. 11.92 Timer*: elapsed lime indicator*: -. r .'m,,., ..-.-li.-e life min. (it :m rt-quircnirnl-. la1 Eiansed lime indicators shall be provided for apparatus with a chemical oxygen source, except: i1 Apparatus used for escape only; or, (2> Liquefied breathing gas apparatus equipped witli gages visible to the wearer be provided on closed-circuit apparatus, add shall meet the following requirements: (11 Tlie relief valve or system shall operate automatically when the pressure in the breathing circuit on the inhala tion side of the breathing bag reaches 13 mm. (one-half inch) water-column height of pressure above {lie minimum pressure required to fill the breathing bag, within the breathing resistance re quirements for the apparatus. (d) The air within the bag(s) shall not contain more than 100 parts per mil lion of gasoline v-ipor r.i th-' end be test. 1 Silverman, L., G. Lee, T. Plotitn, L. Amory, and A. R. Yancey. Fundamental Factors in Design of Protective Kquipment. O.S.RD. Report No. 5732, Issued Apr. i, 1P45. The dimensions of the breathing machine cam are available from the Bureau upon request. FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022157 6254 RULES AND REGULATIONS 11.83--4 Weight requirement. demand-apparatus is lowered by 51 mm. (5) A concentration of 5 percent (a) The completely assembled and fully charged apparatus shall not weigh more than 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 18 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 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 ( 11.85-6 (e)) and 10 cm. (4 inches) water-column height. 11.83--6 Breathing resistance test; ex halation, , (a) Resistance to exhalation airflow will be measured in the facepiece or mouthpiece of open-circuit apparatus with air flowing at a continuous rate of (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 'he facepiece. (d) Where apparatus with com pressed-breathing-gas containers are tested/ the flow test shall also be made with 3,450 kN/m.1 (500 p.s.l.g.) container pressure applied. 11.85--9 Gas flow test; clojed-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) All demand-flow devices shall pro vide at least 30 liters of oxygen per minute when in the fully open position. 11.85--10 Service time test; open-cir cuit apparatus. (a) Service time will be measured with a breathing machine as described in 11.85-3. (b) The open-circuit apparatus will be classified according to the length of time it supplies air or oxygen to the breathing machine. (c) The service time obtained on this test will be used to classify the opencircuit apparatus in accordance with 11.53. carbon dioxide in air will be exhaled into the facepiece. (b) .Closed-circuitapparatus: (1) The concentration of carbon ch ide in inspired gas in closed-circinc 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; Where the service time is: Maximum, allowable average ccmcentration 0/ carbon dioxide in inspired air, percent by volume ' Not more than 30 minutes_____________ 1 hour 2.0 3 hours 1.5 3 hours_______________ 4 hours 1.0 2.5 1.0 (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 sb not contain more than 0.5 percent cu bon dioxide at any time. 85 liters per minute. (b) . The exhalation resistance of de mand apparatus shall not exceed 25 mm. (1 inch) water-column height. (c) The exhalation resistance of pres sure-demand apparatus shall not ex ceed the static pressure in the facepiece by more than 51 mm. (2 inches) water.column height. (d) The static pressure (at zero flow) in the facepiece shall not exceed 38 mm. (1.5 inches) water-column height. (e) Resistance to exhalation airflow will be measured in the facepiece or mouthpiece of closed-circuit apparatus with a breathing machine as described in 11.85-3, and the exhalation resistance shall not exceed 51- mm. (2 inches) water-column height. 11.85--7 Exhalation valve leakage test. (a) Dry exhalation valves and valve seats will be subjected to a suction of 11.85--11 Service time test; closed-cir cuit apparatus. (a) The closed-circuit apparatus will be classified according to the length of time it supplies adequate breathing gas to the .wearer during man test No.- 4 described in Table 4. (b) The service time obtained on man test No. 4 will be used to classify the closed-circuit apparatus in accordance with 11.53. 11.85--12 Test for carbon dioxide in inspired gas; open- and closed-circuit apparatus; maximum allowable limits. (a) Open-circuit apparatus: (1) The concentration of carbon dioxide in inspired gas in open-circuit apparatus will be measured at the mouth while the apparatus mounted on a dummy head is operated by a breathing machine.1 11.85--13 Tests during lo* tempera ture operation. (a) The applicant shall specify the minimum temperature for safe opera tion and two persons will perform the tests described In paragraphs (c) and (d) of this section,-wearing the appa ratus according to applicant's directions. At the specified temperature, the appa ratus shall meet ail the requirements de scribed in paragraph (e) of this section. (b) The apparatus will bo precooled at the specified minimum temperature for 4 hours. (c) The apparatus will be worn in the low temperature chamber for 30 min utes, or for the service time of the ap paratus, whichever is less. (d) During the test period, alternate 1-minute periods of exercise ard rest will be required with the exercise periods 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. J l./.T-O G:is flow tec.'; ope/i-ciivwit apjj.ir.tlu*. (2) The breathing rate wall be 14.5 respirations per minute with a minutevolume of 10.5 liters. (3) A sedentary breathing machine com will be used. (41 The apparatus will be tested at a temperature of 2V2' C. (80'i5" F.).3 box 21.5 cm. (8!4 inches) high at a rate of 30 cycles per minute. ' (e) (1) The apparatus shall function satisfactorily at the specified minimum temperature on duplicate tests. (2) The wearer shall have sufficient unobscured vision to perform the work. (ai A static-flow test will be per formed on all open-circuit apparatus. (b) The flow from the apparatus shall be greater than 200 liters per minute 3 Kloos, E. J.. and J. Lamonlc.i, A MachlnoTest Method for Measuring Carbon Dioxide In the Inspired Air of Self-Contained Breathing Apparatus. Bureau of Mines Report of In (3) The wearer shall not experience undue discomfort because of airflow re striction or other physical or chemic changes in the operation of the when the pressure in the facepiece of vestigations 6865, I960, 11 pp. apparatus. FE5AU REGISTER, VOL, 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022158 RULES AND REGULATIONS 6255 (f) Auxiliary low-temperature parts which are commercially available to the user may be used on the apparatus to meet the requirements described in par agraph (e) of this section. 11.83--14 Man tc-.ts; testing condi tions; general requirements. (a) Tlie man tests described in Tables 1, 2, 3. and 4 represent the workload per formed in the mining, mineral, or allied industries by a person wearing the appa ratus tested. (b) The apparatus tested will be worn by Bureau personnel trained in the use of self-contained breathing apparatus, and the wearer will, before participating in these tests, pass a physical examina tion conducted by a qualified physician. (c) All man tests will be conducted by the Bureau. Cd) The apparatus will be examined before each man test to ensure that it is in proper working order. (e) Breathing resistance will be meas ured within the facepiece or mouthpiece and the wearer's pulse and respiration rate will be recorded during each 2 min ute sample period prescribed in tests 1, 2. 3, and 4. (f> Man tests 1, 2, 3, 4, 5, and 6 will be conducted in duplicate. (g) If man tests are not completed through no fault of the apparatus, the test will be repeated. 11.85--15 Man tests 1, 2, 3, and 4; requirements. (a) Man tests 1, 2, 3. and 4, set forth in Tables 1. 2, 3, and 4 respectively, pre scribe the duration and sequence of spe cific activities. These tests will be conducted to: (1) Familiarize the wearer with the apparatus during use; ' (2) Provide for a gradual increase in activity; (3) Evaluate the apparatus under dif ferent types of work and physical ori entation; and (4) Provide information on the op erating and breathing characteristics of the apparatus during actual use. 11.85-16 Man tcM 5; requirements. (a) Test 5 will be conducted to deter mine the maximum length of time tiie apparatus will supply the res piratory needs of the wearer while he is sitting at rest. (b) The wearer will manipulate the devices controlling the supply of breath ing gas to the advantage of the apparatus. (c) Samples of inspiration from within the apparatus facepiece or mouthpiece shall be taken once every 15 minutes, and shall meet the minimum requirement for oxygen specified in 11.79(a) of this part, and the maximum allowable average concentration of carbon dioxide specified in 5 11.85--12<c) - (d) One sample of inspiration will be taken in the case of 3-, 5-, and 10-minute apparatus. II.85-17 Man tv>l 6: requirements. (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 for orie-fourth the service life of the ap paratus with a full charge of liquefied breathing gas. and then a one-quarter full charge of liquefied breathing gas. id) The test wall be repeated with the wearer lying on each side and on his back. (e) The oxygen content of the gas sup plied to the wearer by the apparatus will be continuously measured. 11.85--18 Man tests; performance re quirements. (a) The apparatus shall 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" 10* 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.): ' When* vir? life of apparatus Is-- Where percent relative humidity o Inspired air Is-- Maximum permis sible temperature of Inspired air shall not exceed-- F. C. M hour or less........ K hour to hour... I to 2 hours............. 3 hours.................... 4 hours.................... 0-100 0-50 50-100 0-50 50-100 0-50 50-100 0-50 50-100 135 125 110 115 i 105 110 i 100 105 1 95 57 52 * 13 41 43 `3$ 41 `3j * Where percent relative humidity ts 50-100 and appa ratus is designed for escape only, these maximum permlsslble temperatures wiU be Incieased by 5* C. (10' F.). 11.85--19 Gas tightness test; minimum requirements. (a) Each apparatus will be tested for tightness by persons wearing it in an atmosphere of 1,000 p.p.m. isoamyl acetate. (b) Six persons will each wear the ap paratus in the test concentrations spec ified in paragraph (a) Of this section for 2 minutes and none shall detect the odor or taste of the test vapor. Tabi.e 1.--pfRvTi-iv \nd Sequence or Specific Activities for Test 1, In Minutes 130 OF R Part 11, Suhpart H, 5 11.85, et scq.)* 3 Activity 3 minutes 5 minutes Service time-- 10 minutes IS minutes 30 minutes 45 minutes 1 hour 2,3, and 4 hours Sampling and readings. 2 2 2 2 Perform 1 hour test 2,3, or 4 times respectively. Walks at 4.8 km. (3 miles) per hour................................ 3 6 3 4 12 18 Sampling and readings................................................................................................ Walks at 4.8 km. (3 miles) per hour............................................................................ 2 3 23 2 22 8 12 IS Sampling and readings........................................... ................................................... 22 222 Walks at 4.8 km. (3 miles) per hour.............................................. ............................. Sampling and readings.................................................. ..................... ...................... 6 13 10 2 22 FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022159 6256 RULES AND REGULATIONS Tublx 2.--Duxatjon and 8equxncx of Spechic Activities vox Test 2, m Minutes (30 CF R Part 11, Bubpart H, $ 11.85, et Sq.) Activity 3 minute* 5 minutes 10 minutes 8ervice Time-- 16 minutes 30 minutes 46 minutes lbour 2,3 and 4 hoars Sampling and readings............... .......................................... Walks at 4.Skm. (3 miles) per hour...... ...... ........................ . Carries 23 kg. (60 pouua) weight over.............................. OV'VCftSt. Walks at 4.8 kra. (3 miles) per hour................................... Climbs vertical treadmill* (or equlva- 1.......................1. I*nt). . Walks at 4.8 km. (3 miles) per hour..................................1. Climbs vertical treadmill (or equivalent)................... 1. Sampling and readings............................................................ Walks at 4.8 km. (3 miles) per hour...........................-......... . Climbs vertical treadmill (or equivalent).................... .......... Carries 23 kg. (50 pound) weight over .............................. overcast. Sampling and readings.....------ --------------------- -------------- Walk* at 4.8 km. (3 miles) per hour.................. .............. . Climbs vertical treadmill (or equivalent)............. ............. Walks at 4.8 km. (3mIles)perhour. .............................. Climbs vertical treadmill (or equivalent).................. ......... . Carries 20 kg. (V pound) weight and I 1....... ............... walks at 4 8 km. (3 miles) per hour. Walks at 4.8 km. (3 miles) per hour. 1......................2. Sampling and readings.........................................................-- ................2...............2................ 2...............2.........2. 1......................... 1...........................3.......................... 4...........................6.......................... 10. 1 time in 2 1 time In 2 2 times In 4 3 times in 0 4 times in 8 6 times In 10 minutes, minutes. minutes. minutes. minutee. minutes. .........................1........................ 3........................3........................3...................... 6. 1....................... 1........................ 1........................ 1......................... 1......................L 1 21.................... 2.......... 1............ 212.....................v....,. . 31............................ . 3.................. 12....................... 51............................... 1 time In 2 3 times Ins 4 times in 8 5 times In 10 2. minutes. 1. minutes. 2.m..i.n.u.t.e.s... 3.......... ... 2.x.n..lD.u..te.s.... 3.................... T 1............. 1............ 1.................. ..2....................................................................................................................................12.......................................... 13.. ............... :................................................................. 2. 6. 21.. 6 times In 10 minutes. 2. Then repeat above activities once. ..2......................................2.......................................12.............................................42........y..... Total test time for Test 2 for 2-hour, 3-hour, and 4-hour apparatus Is 2 hours. * Treadmill shall be Inclined 15 from vertical and operated at a sp$ed of 1 foot per second. Table 3.--Donation and Sequence or Specitic Activities rox Test 3, In Minutes* (30 CFR Part 11, Subpart H, | 11.85, et seq.) Activity 3 minutes 5 minutes 10 minutes Service'time-- 16 minutes 30 minutes 46 minutes 1 hour 2,3 and 4 hours1 Sampling and readings................................................ --............... .............................. Walks at 4.8 km. (3 miles) per hour.................. ......... ............................ 1..--.............. . Runs at 9.7 km. (8 miles) per hour......... 1.................... 1-------------------1......... .......... . Pulls 20 kg. (45 pound) weight to 6 feet............................15 times in l .............. .......... minute. Lies on side........................................... . M.................... 1...................... 1.................... Lifs on back...................... ......... ........ ............ 1--................. - 1................... Crawls on bands and knees............. 1................. . 1............ ......... 1..................... Sampling and readings.......__ __________....___________ ___ ____ __ 2............ Runs at '.'.7 km. (8 miles) per hour..................... ............ ................................... .......... Walks at 4.8 km. (3 miles) per hour..... ............. ............... .............................................. Pulls 20 kg. (45 pound) weight to 6 foot............................. ....................... 30 times in 2 minutes. Sampling and reodlngs..............--......... .............. .................. -.....................-....... Walks at 4.8 km. (3 miles) per hour............................................................1................... Lies on side_______.................___________________ ___________ _____________ Lies on back............................................................. ......... --_______ ____ --......... . Sampling and readings.............___________________ ________________ _________ 2..... ___ i1................................... 30 times in 2 22..m....i..n..u..t..e..s....... 2........................ i. 2. 2.................... 2................... 1.............. 30 times in 2 minutes. 322.......................................... 2.............. . 21.:....................... 00 times In 6 minutes. 3. 2. 2........... . 2................... 1................... 30 ttmos In 2 minutes. 4..................... 3................... 2............ 1... 2................... 81.............................. 60 times In 6 2.m..l.n.h.t.e.s.... 4............... . 2................... 2.................. 2................... 2........... 31................................ 60 times In 6 5.m...in..u..te..s..... 3................... 22........................... 1.............. 10................ 60 times in 6 210.m....i..n..u..t..e..s....... 241........................................ Perform test No. 3 for 1 hr. appara tus; then perform test No. 1 for 1 hour apparatus. * Total test lime for Test 3 for 2-hour, 3-hour; and 4-bour apparatus Is 2 hours. FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022160 RULES AND REGULATIONS 6257 Tadi* 4.--DobatioN'INd Seqoknc* or Specific AcnvrnM tor Tmt 4, in Mlnotm (30 CPU Part 11, Sobpart H, 111.35, etsq.) Activity Srv1oa tlro-- 3 mlaot * minute io minutes 18 mlnuios 30 minutes 45 minutes 1 hour 2 hours 3 hours 4 hours Sampling and readings...................................................... -................... . 2............... 2............... v 2................2. Walks at 4.8 km. (3 miles) per hour............................................................. 1............... 2................. 2.......... 2. Climbs vortical treadmill * (or i ............. 1................. 1................. 1................. 1................. 1--........... . l. equivalent). Walks at 1.8 km. (3 miles) per hour......................1................. 1............... 1.......... . 2...........--- 2.............-- 2. Perform tost No. I for 30minute apparatus; then perform test No. 4 tor 1-hour apparatus; then perform test No. 1 for 30-mlnute appora- Pulls 20 kg. (45 pound) weight to 5.................. 30 times f:et. in 2 30 times in 2 30 times 60 times 60 times 60 times . in 2 in 6 in 5 in 5 minutes, Walks at 4 Skm. (3 miles) per hour........................................... minutes. 1............... 1..m..i.n.u..te..s.. 1..m..i.n.u..te..s.. minutes, minutes. 2................3.................. Carries 23 kg. (50 pound) wolgnt.......................................................... 1 time in over overcast. 1 min 1 time in 1 min 2 times in 4 tiroes in . 3 mia- 8 min ute. ute. utes. utes. ......... ......... ...........Sampling and readings..............-............................................. 2................. Walks at l.Skra. (3 miles) perhour............................................................... Rims at9.7 km. (6 miles) per hour....................... 1............... 1............... 11..................... 2 31.......................... 22 31............................14............................... Carries 23 kg. (50 pound) weight over...................................... I time In 1 time In 2 times Jn 4 times In 6 times in . overcast. 1 min l min 3 min- 0 mln- 9 min ute. ute. uUs. utes. utes. Pulls 20 kg. (45 pound) weight to 5 15 times ...................................... 15 times feet. in 1 in l minute. minute. ........Sampling and readings................................................................................ 2 Walksat48km. (3miles) per hour..-1................................... 1............... 60 times 30 times 36 times . In 5 in 2 In 3 2.m..i.n.u.t.e.s.. 2.m..i.n.u.t.o.s..2..m..i.n.u.t.e.s.. 2................6.................. Pulls 20 kg. (45 pound) weight to 5.......................................................... feet. 60 tunes 60 times in 5 in 5 minutes, minutes. CamVs20kg. (45 pound) weight and 3.................3............... walks at 4.8 km. (3 miles) per hour. Sampling and readings............. .*___ 2.....................2. Perform test No. t for 1hour appara tus; then per form test No. 1 for Ihour appara tus; then per form test No. 1 for 1-hour apparatus. Perform test No. 1 for 1hoUr appara tus; then per form test No. 4 for 1hour appara tus; then per form test No. 1 for 1iiour appara tus twice (l.e., two one-hour tests). i Treadmill shall be inclined 15 from vertical and operated at a -peed of 39 cm. (1 foot) per second. Subpart 1--Gas Masks 11.90 Gas masks; description. (a) Gas masks including all com pletely assembled air purifying masks which are designed for use as respiratory protection during entry into and escape or escape only from hazardous atmos pheres containing adequate oxygen to support life are described as follows: (1) Front-mounted or back-mounted gas mask. A gas mask which consists of a full facepiece, a breathing tube, a canister at the front or back, a canister harness, and associated connections. (2) Type "N" front-mounted or backmounted gas mask. A gas mask specif ically designed to protect against 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 of a half-mask facepiece or mouthpiece, a canister, and associated connections. ib) Gas masks shali be further de scribed according to the specific gases or vapors against which they are designed to provide respiratory protection, a3 follows: Maximum use concentration, per cent by volume Type of front-mounted or backmonnted gas mask: Acid gas ' *---------- ---------------------------Ammonia1 _________________________ Carbon monoxide *_________________ Organic vapors *_________________ `2 3 2 2 Maximum use concentration, per cent by volume Type vf chin-style gas mask: Acid gas 3-4 6 0.5 Ammonia Organic vapors ' * .S *. 5 Maximum use concentration, parts per million Type f escape gas mask: Acid gas > * _____ ______________ Ammonia * Carbon monoxide 10, OOO Organic vapors *>* 15, OOO `1,000 5, ooo 1 Approval may be for acid gases or organic vapors as a class or for specific acid gase3, ammonia, or organic vapors. Approval may also be granted for combinations of acid gases, organic vapors, and other gases and vapors. 4 Not for use against acid gases or organic vapors with poor warn'/-., t :opcrt!es or waich generate high heats :r.scrion with "orbent materials In the , .-.r..ater. `Suggested maxlr.:':u use concentrations are lower than these lor some acid gases and organic vapors. 4 Eye protection may he required lc certain concentrations of acid 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 Gas masks; required compo nents. (a) Each gas mask described in } 11.90 shall, where its design requires, contain the following component parts: (1) Facepiece or mouthpiece and noseclip; (2) Canister or cartridge: '3> Canister harness: (4' External check valve: and (5) Breathing tube. (b) The components of each gas mask shall meet the minimum construction re quirements set forth in Subpart G of this part. FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022161 6258 RULES AND REGULATIONS 11.92 Canisters and cartridges in par by providing one facepiece size which (b) The maximum allowable resist allel; resistance requirements. will fit varying facial shapes and sizes. ance requirements for gas masks are as Where two or more canisters or car tridges are used In parallel, their resist ance to airflow shall be essentially equal. (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 follows: Mjjcntuu Rrsi3TAS-cs (mm. water-eolomn height) 11.93 Canisters and cartridges; color mask. and markings; requirements. (c) Half-mask facepieces shall not in . Type of ess mask Inhalation ------------------- Elbe- The color and markings of all can isters and cartridges or labels shall con form with the requirements of the Ameri can National Standard for Identification of Gas Mask Canisters. K13.1, obtainable from American National Standards In stitute, Inc., 1430 Broadway, New York, NY 10018. terfere with the fit of common industrial safety spectacles, as determined by the Bureau's facepiece tests in 5 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. IUnoi-i Final1 latloa Front-mounted or back-mounted (without particular filter)........... Froot.mouuted or back-mounted (with approved particulate filter).............................................. Cbln-styla (without particulate filter).............................................. Chin-stylo (with approved partloulate filter)..................................... 60 70 40 65 75 20 So 20 65 20 SO 20 11.94 Filters used with canisters and Escape (without particulate filter).. 60 75 20 cartridges; location; replacement. 11.99 Facepieces; eyepieces; minimum Escape (with approved particulate (a) Particulate matter filters used in requirements. filter).............................................. 70 85 20* 2 3 4 conjunction with a canister or cartridge shall be- located on the inlet side of the (a) Full facepieces shall be designed and constructed to provide adequate r Measured at end of the service life specified In Table* 6,6, and 7. canister or cartridge. Cb) Filters shall be incorporated in or firmly attached to the'canister or car vision which is not distorted by the eye piece. (b) All eyepieces shall be designed and 11.102--2 test. Exhalation valve leakage 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. and Respirator, Air Filtering. Industrial, normal operating position. GGG-M--125d, October 11, 1965. (b) Leakage between the valve and 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: (1) Restriction of free head move 11.100 Inhalation and exhalation valves; minimum requirements. (a) Inhalation and exhalation valves shall be provided where necessary and protected against damage and distortion. valve seat shall not exceed 30 milliliters per minute. 11.102--3 Facepiece tests; minimum requirements. (a) The complete gas mask will be ment; (b) Inhalation valves shall be designed fitted to the faces of persons having (2) Disturbance of the fit of facepieces and constructed to prevent excessive ex varying facial shapes and sizes. or mouthpieces; haled air from adversely affecting car (b) Where the applicant specifies 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 measu, _ - (4) Shutoff of airflow due to kinking, tected against external influence, and ments of faces they are designed to fit, or from chin or arm pressure. designed and constructed to prevent in the Bureau will insure that test subjects ward leakage of contaminated air. suit such facial measurements. 11.96 Harnesses; installation, and con struction; minimum requirements. (a) Each gas mask shall, where 11.101 Head harnesses;-minimum re quirements. . (c) Any gas mask parts which must be removed to perform the facepiece or mouthpiece fit test shall be replaceable necessary, be equipped with a suitable (a) Facepieces shall be equipped with without special tools and without dis harness designed and constructed to hold adjustable and replaceable head har turbing the facepiece or mouthpiece fit, the components of the gas mask in posi nesses, designed and constructed to pro (d) The facepiece or mouthpiece fit tion against the wearer's body. vide adequate tension during use and an. test, using positive or negative pressure (b) Harnesses shall be designed and even distribution of pressure over the recommended by the applicant and de constructed to permit easy removal and entire area in contact with the face. scribed in his instructions will be used replacement of gas mask parts, and (b) Mouthpieces shall be equipped, before each test specified in paragraph where applicable, provide for holding a where applicable, with adjustable and (e)of this section, and in 11.102-4. full facepiece in the ready position when replaceable harnesses designed and con (e) (1) Each wearer will enter a cham not in use. structed to hold the mouthpiece in place. ber containing 100 p.pjn. 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 mad: It contains and all appro 11.102 Gas 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 55 11.102-1 through vapor for a half-mask facepiece and 1,Q00 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 priate approval labels. 11.102-5. the following activities: (b) Containers for gas masks shall 11.102--1 Breathing resistance test; (1)Two minutes, nodding and turn be designed and constructed to permit minimum requirements. ing head; easy removal of the mask. 11.98 Half-mask facepiecrs, full face pieces and mouthpieces; fit; mini mum requirements'! (a) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial shapes and sizes either: (1) By provid- (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 55 11.102 3, 11.102-4, and 11.102-5, with air flow ing at a continuous rate of- 85 liters per (li) Two minutes, callsthenlc arm movements; (lil) Two minutes, running in place, and ` <iv) Two njinutes, pumping with a tire pump into a 28 liter (1 cubic foot) con tainer. (4) Each wearer shall not detect th ,liig 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 0022162 RULES AND REGULATIONS G259 11.102-4 Dust, fume, mist, and smoke tests; canisters containing filters; minimum requirements. (a> Gets mask canisters containing filters for protection against dusts, fumes, mists, and smokes in combination with gases, vapors, or gases and vapors, will be tested as prescribed in 5 11.140. (b) Gas mask canisters designed for protection against smokes will be tested in an atmospheric concentration of 100 micrograms of dioctyl phthaiate 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--S Canister bench tests; mini mum requirements. (a) (1) Bench tests, except for carbon monoxide tests, will be made on an ap paratus that allows the test atmosphere at 50 5 percent relative humidity and room temperature (252.5* C.) to enter the canister continuously at concentra tions and rates of flow specified in Tables 5, 6, and 7. (2) Three canisters will be removed from containers and tested as received from the applicant. (3) Two canisters, other than those described in paragraph (a) (2) of this section, will be equilibrated at room tem perature by passing 25 percent relative humidity air through them at 64 liters per minute for 6 hours. (4) Two canisters, other than those described in paragraphs (a) (2) and (3) of this section, will be equilibrated at room temperature by passing 85 percent relative humidity air through them at 64 liters per minute for 6 hours. (5) The equilibrated canisters will be resealed, kept In an upright position at room temperature, and tested within 18 hours. (b) Front-mounted and back-mounted gas mask canisters will be tested and shall meet the minimum requirements set forth in Table 5. (c) (1) Front-mounted and backmounted canisters designated as Type N canisters shall have a window or other indicator to warn the gas mask wearer when the canister will no longer satis factorily remove carbon monoxide from the inhaled air. (2) Other types of front- and back- mounted canisters may also be equipped with a window or other indicator to warn of imminent leakage of other gases or vapors. (3) The window indicator canisters will be tested as regular canisters, but shall show a satisfactory indicator change or other warning before the allowable canister penetration has occurred. (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. TA.BLX Cimarr* TSSIB AJn> IUQ01MMENT3 TO* TeO.NT AND BACK-MoTOTID OjkS MA3I CAN)373R5 ' (36 CTE Part 11. BobpMt 1,1 11.103-3) Canister type Test condition Test atmosphere Maximam ---- -- allowable Minimum. Oas Concentra Flow Number ponetra- service or tion, rate, of tion, life, vapor p.p.m. Ipuxu teats p.p.m. minutes` Acid gas. ...t........ Ch NOi Equilibrated....... ....... 80, Cl, NO, Organic vapors.... Equilibrated..... ....... CC1, Ammonia............. Equilibrated____ .......NH, Carbon monoxide. .. As received......... CO CO TypeN................. ....... so, Cl, NO, CCU NS, CO CO CO Equilibrated....... Cl, NO, mecuu 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 6,000 3,000 20,000 20,000 20,000 20,000 30,000 64 64 64 32 32 32 64 32 64 32 *64 32 *32 64 e4 ' 64 64 64 . *64 *32 *32 32 32 32 32 32 3 3 3 4 4 4 3 4 3 4 2 3 3 X 3 3 3 3 2 3 3 4 4 4 4 4 6 6 5 5 6 6 6 6 60 60 <*) <C>T> * 5 5 6 M () M 5 6 6 5 60 . 12 12 12 12 12 U 12 12 12 12 CO 60 60 6 6 8 6 8 66GO00 6 8 6 6 6 iMinimum life will be determined at the Indicated penetration. t Relative humidity oil test atmosphere will be 95=b3 percent; temperature of teat atmosphere will be 252.5I*C. j Maximum allowable CO penetration will be 385 cc. during the minimum Ule. The penetration shall not exceed 600 p.p.m. during this time. * Relative humidity of test atmosphere will be 953 percent; temperature of test atmosphere entering the teat fixture will be 0+2.6 C.--0 C. Table 6.--Canister Bench Tests and R eqtjdlements toe Chin-Sttlz Oab Mask Canwterb (30 CFR Part 11, Subpart I, $ 11.103-6) Canister type Test condition Test atmosphere Maximum ---- --- ------ Number allowable Oas Concentra Flow of penetra or tion, rate, tests tion, vapor p.p.m. l.p.xn. p.p.m. Minimum service life, minutes1 Acid gas................. .. As received^.___... ... SO, Cb NO, Equilibrated............ ~ 80, Cl, Organic vapors....... As received........... ... Equilibrated............ ... NeeOccuu, Ammonia.................. As received........ ...... ... NH, Equilibrated............ .. NH, 6555556666,,,,,,,,,,000000000000000000000000000000 3633663624224244 3624 33 3 44 43 344 5 86 660055655 11111111112222222222 t Minimum life will be determined at the indicated penetration. Tablx 7.--Canister Bench Tests and Requirements tor Escape Oab Mask Canisters (30 CFR Part 11, Subpart 1,111.102-5) Canister type Teat condition Test atmosphere . Gaa or apor Concentra Flow tion, rate, p.p.m. Lpjn. Maximum Number allowable of penetra tests tion, p.p.m. Minimum service life, minutes * Acid gas.______.... .. As received.____ _.. Equilibrated____ ___ Organic vapors______.. As received........ Equilibrated........... Ammonia......_____ As received........ Equilibrated................... Carbon j-o.'.otM*..... Asriccived....................... BO, Ch NO, ScOu, NO, ecu NU, CO CO CO 8,000 5,000 5.000 Aooo 6,000 6,000 6,000 6,000 6,000 6,000 10.PC9 5. COO 3,000 64 64 64 32 32 32 64 32 64 32 *22 *32 38 35 36 45 45 46 35 45 3 60 4 *> 60 (*) 3 (*) 3 (*) 12 12 12 12 12 12 12 12 12 IJ CO CO ` Minimum life will be determined at the indicated penetration. * Relative humidity of test atmosphere will be 95Hi3 percent; tempprature of tat atmosphere will bo iS+2.6* c* * Maximum allowable CO penetration will be 385 cc. daring the minimum life. The penetration stall not execed COO p.p.m. during this time. * If effluent temperature exceeds 100* C. during this teat, the escape gas mash shall be equipped with an effective beat exchanger. * Relative humidity of teat atmosphere will be 953 percent; temperators of teat etmcwpbem enteric* the test fixture will be 0+2.6 C.-O'C. * No. 59--Pfc. H- KDERAl REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 7 972 CAP CO JEN 0022163 6260 RULES AND REGULATIONS Subpart J--Supplied-Air Respirators do not unduly interfere with the wearer's (c) Hoods and helmets shall be de vision and permit easy access to the ex signed and constructed to fit persons 11.110 Supplied-air respirators; de ternal surface of such window(s) for with various head sizes, provide for the scription, cleaning. optional use of corrective spectacles or (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 n.Ul Supplied-air respirators; re quired components. (a) Each supplied-air respirator de scribed in 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. 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* xnets; eyepieces; minimum require* menls (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 cm Types B, BE, C, and CE supplied-air respirators shall be designed and con facepiece. (2) Type "AE" supplied-air respira tors. A Type "A" supplied-air respirator equipped with additional devices designed (b) The component parts of each supplied-air respirator shall meet the minimum construction requirements set forth in Subpart G of this part. structed to meet the impact and pene tration requirements specified In Federal Specification, Mask, Air line, and Res pirator, Air Filtering, Industrial GGG- 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 "B" suppUed-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 11.112 Breathing tubes; minimum re quirements. (a) Flexible breathing tubes used In conjunction with suppUed-air respirators shall be designed and constructed to Ifrevent: (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 ments. (a) Each supplied-air respirator shall, where necessary, be equipped with a suitable harness designed and con structed to hold the components of the respirator in position against the wear er's body. <b) Harnesses shall be designed and constructed to permit easy removal and replacement of respirator parts, and where applicable, provide for holding a full facepiece in the ready position when not in use. M-125d, 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; cheek valves; minimum re quirements. (a) Inhalation and exhalation valves shall be provided where necessary and protected against distortion. Cb) Exhalation valves shall be: (1) Protected against damage and ex ternal influence: and (2) Deslgbed and constructed to pre vent inward leakage of contaminated air. (c) Check valves designed and con structed to allow airflow toward the face piece only shall be provided in the con nections to the facepiece or in the hose fitting near the facepiece of all Type A, AE, B, and BE supplied-air respirators. 11.118 Head harnesses; minimum re quirements. 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 11.114 Respirator containers; mini mum requirements. Supplied-air respirators shall be equipped with a substantial, durable con tainer bearing markings which show the applicant's name, the type and commer cial designation of the respirator it con tains, and all appropriate approval labels. 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 ing air, a hose, a detachable coupling, 11.115- Half-mask facepieces, full quirements. 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. (G) T:r.c "CE" supplied-air respira tors. A i;' C" supplied-air respirator facepieces, lioods, and helmets; fit; minimum requirements. (a) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial shapes and sizes either (1) by providing Type AE, BE, and CE supplied-air respirators shall be designed and con structed to provide protection against impact and abrasion from rebounding p.brasive materials to the wearer's head equipped v.itn additional devices de more than one facepiece size, or (2) by and neck. 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 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 11.120 Air velocity and noise levels; hoods and helmets; minimum re quirements. Noise levels generated by the respira able material to protect the window(s) piratory protective qualities of the tor will be measured inside the hood or of facepieces, hoods, and helmets which respirator. helmet at maximum airflow obtainable FEDERAL REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, 1972 Ii i 'h X * CAPCO JEN 0022164 RULES AND REGULATIONS 6261 within pressure and hose length require ments and shall not exceed 80 dBA. 11.121 Breathing gas; minimum re 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 These are used to facilitate timing. JTo determine the torque or horsepower re quired to operate the blower, the drum is started in rotation manually at or quirements. (a) Breathing gas used to supply sup plied-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 for Type I gaseous air set forth in the Compressed Gas Associa 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 slightly above the speed at which the power measurement is to be made. The blower is then permitted to assume con stant speed, and then as the first mark on the wire leaves the drum, a stopwatch is started. The watch is stopped when the second mart leaves the drum. From these data the foot-pounds per minute and the torque may be calculated. 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 II liquid air set forth in the Compressed Gas Association Commodity Specification for liters of air per minute to each wearer through the maximum length of hose shall not exceed one-fiftieth horsepower, and the torque shall not exceed a force of 2.3 kg. (5 pounds) on a 20 cm. (8-inch) crank, os defined in 5 11.124-3. (d) The blower shall operate through 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. Air, G-7.1 (Grade B or higher quality). out the period without failure or indica 11.124--5 Type C supplied-air respira 11.122 Air supply source; hand-oper ated or motor driven air blowers; tion of excessive wear of bearings or other working parts. tor, continuous flow class; minimum requirements. Type A supplied-air respirators; min 11.124--2 Motor-operated biower test; (a) Respirators tested under this sec imum requirements. minimum requirements. tion shall be approved only when they (a) Blowers shall be designed and constructed to deliver sin adequate amount of air to the wearer with either direction of rotation, unless constructed to permit rotation in-one direction only, and to permit the free entrance of air to the hose when the blower is not operated. <b> No multiple systems, whereby more than one user is supplied by one blower, will be approved, unless each hose line is connected directly to a manifold at the blower. 11.123 Terminal filting nr chambers; Tjpe B supplied-air respirators; min imum 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 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 gage) under any conditions. s 11.124--6 Type C supplied-air respira tor, demand and pressure demand (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 oi chamber In a fixed position in a zone of respirable air. 11.124 Supplied-air respirators; per tion of excessive wear of bearings or other working parts. (d) Where a blower, which is ordi narily motor driven, is operated by hand, the power required to deliver 50 liters of air per minute to each wearer through the maximum length of hose shall not exceed one-fiftieth horsepower, and the torque shall not exceed a force of 2.3 kg. (5 pounds) on a 20 cm. (8-inch) crank, as defined in 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. 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 air-supply hose to the air-supply system, and the range of hose length for the respirator. For example, he might specify that the respirator be used with compressed air at pressures ranging from 280-550 kN/m.' (40 to 80 pounds per square inch) with from 6 to 76 m. (15 to 250 feet) of air-supply hose. (c) The specified air pressure at the point of attachment of the hose to the air-supply system shall not exceed 863 kN/m.' (125 pounds per square inch gage). (d) (1) Where the-pressure in the air- formance requirements; general- - 11.124--3 Method of measuring the supply system exceeds 863 kN/m.' (125 Supplied-air respirators and the in dividual components of each such device shall, as appropriate, meet the require ments for performance and protection specified in the tests described in 35 11 124-1 through 11.124-24. 11.121--1 Hand-operated blower test; minimum requirements. power and torque required to operate blowers. As shown in Figure 1, the blower crank is replaced by a wooden drum, a. (13 cm. (5 inches) in diameter is convenient). This drum is wound with about 12 m. (40 feet) of No. 2 picture cord. b. A weight, c, of sufficient mass to rotate the blower at the desired speed is suspended from 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 noint of attach ment of the here to lr-ir-runpiy sv,-,- tern from exceeding 8,73 kN/in.: (125 pounds per square inch gage). (2)The pressure-release mechanism sha.il be set to operate at a pressure not (a) Hand-operated blowers shall be this wire cord. A majrk is made on the more than 20 percent above the manu tested by attaching them to a mechanical cord-about 3 to 4.5 m. (10 to 15 feet) facturer's highest specified pressure. For drive and operating them 6 to 8 hours from the weight, c. Another mark is example, if the highest specified pres daily for a period of 100 hours at a speed placed at a measured distance (6-9 m./ sure is 863 kN/m.' (125 pounds per square necessary to deliver 50 liters of air per 20-30 feet is convenient) from the first. inch), the pressure-release mechanism FEDERAL REGISTER, VOL. 37. NO. 59--SATURDAY, MARCH 2S, 1972 CAPCO JEN 0022165 6262 RULES AND REGULATIONS would be set to operate at a maximum of against closing oft by kinking or by chin 11.124--12 Airflow resistance test; 1,035 kN/m.' <150 pounds per square or arm pressure, and they shall not create Type C supplied-air respirator, con Inch). , a pull that will loosen the facepiece or tinuous flow class and Type CE disturb the wearer. 11.124--7 Air-supply line tests; mini mum requirements. (b) Breathing tubes employed on Type C supplied-air respirators of the con supplied-air respirator; minimum re quirements. The resistance to air flowing from the Air supply lines employed on Type A, Type B, and Type C supplied-air respi rators shall meet the minimum test re quirements set forth In Table 8. tinuous flow class shall meet the mini mum requirements set forth in paragraph (a) of this section, however, an exten sion of the connecting hose may be em respirator shall not exceed 25 mm. (1 inch) of water-column height when the air flow into the respiratory-inlet cover ing is 115 liters (4 cubic feet) per minute. 11.124--8 Harness test; minimum re- quiremeuls. (a) (1) Shoulder straps employed on Type A supplied-air respirators shall be tested for strength of material, joints, and seams and must separately with stand a puli of 113 kg. (250 pounds) for 30 minutes without failure. (2) Belts, rings, and attachments for life lines must withstand a pull of 136 kg. (300 pounds) for 30 minutes without failure. (3) The hose shall be firmly attached ployed in lieu of the breathing tubes required. (c) (1) A flexible, nonkinking type breathing tube shall: (i) Be employed on Type C 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 11.124--13 Airflow resistance test; Type C supplied-air respirator, de mand class; minimum requirements. (a) Inhalation resistance shall not ex ceed 50 millimeters (2 inches) of water at an air flow of 115 liters (4 cubic feet) per minute. (b) The exhalation resistance to a flow of air at a rate of 85 liters (3 cubic feet) per minute shall not exceed 25 milli meters (1 inch) of water. 11.124--14 Airflow resistance test; to the harness so as to withstand a pull sure, and shall not create a pull that will of 113 kg. (250 pounds) for 30 minutes loosen the facepiece or disturb the without separating, and the hose at wearer. Type C supplied-air respirator, pres sure-demand class; minimum re quirements. tachments shall be arranged so that the pull or drag of the hose behind an ad vancing wearer does not disarrange the harness or exert pull upon the facepiece. (4) The arrangement and suitability of all harness accessories and fittings will be considered. (b> (1) The harness employed on Type B supplied-air respirators shall not be uncomfortable, disturbing, or interfere with the movements of the wearer. (2) The harness shall be easily adjust able to various sizes. (3) The hose shall be attached to the harness in a manner that will withstand a pull of 45 kg. (100 pounds) for 30 min 11.124--10 Airflow resisinnee test, Type A and Type AE 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 one-half its length in loops 1.5 to 2.1 m. (5 to 7 feet) in diameter. (b) The inhalation resistance, drawn at the rate of 85 liters (3 cubic feet) per minute when the blower is not operating or under any practical condition of blower operation shall not exceed tile (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--15 Exhalation valve leakage test. utes without separating or showing signs following amounts: (a) Dry exhalation valves and valve of failure. seats will be subjected to a suction of 25 (4) The design of the harness and Maximum length of hose Maximum 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 rosplrator 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 Meters leches Millimeters valve seat shall not exceed 30 milliliters per minute. exerting a pull on the facepiece. (5) The arrangement and suitability of all harness accessories and fittings will be considered. (c) The harness employed on Type C respirators shall be similar to that re quired on the Type B respirator, or, it 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 1.6 38 150 45 2.6 250 70 3.5 89 300 91 4.0 102 (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 11.124--16 Man tests for gases and vapors; supplied-air respirators; gen eral performance requirements. (a) Wearers will enter a chamber con taining a gas or vapor as prescribed In 55 11.124-17, 11.124-18, 11.124.19, and 11.124-20. (b) Each wearer will spend 10 minutes in work to provide observations on free dom of the device from leakage. The freedom and comfort allowed the wearer will also be considered. (c) Time during the test period will be divided as follows: (1) Five minutes. Walking, turning head, dipping chin; and (2) Five minutes. Pumping air with a tire pump into a 28-liter (1 cubic foot) 11.121--9 Breathing tube test; mini length to be considered for approval, container, or equivalent work. mum requirements. (a) (1) Type A and Type B suppliedair respirators shall employ one or two flexible breathing tubes of the non kinking type which extend from the face piece to a connecting hose coupling coiled in loops 1.5 to 2.1 in. (5 to 7 feet) in diameter. (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. (d) No odor of the test gas or vapor shall be detected by the wearer in the 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 tiffs flow rate. testing period. FEDERAL REGISTER, VOL. 37, NO. 5?--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022166 RULES AND REGULATIONS 6263 11.121--17 Man lest for cases and sapors: Type A and Type AD rc**pira- lors; lest requiremen.s, (a) The completely assembled respi rator will be worn in a chamber contain ing 0.1 0.025 percent isoamyl acetate vapor, and the blower, the intake of the hose, and not more than 25 percent of the hose length will be located in isoamyl acetate-free air. (b> The man in the isoamyl acetate atmosphere will draw his inspired air through the hose, connections', and all parts of the air device by means of his lungs alone (blower not operating). (c) The 10-minute work test will be repeated with the blower In operation at any practical speed up to 50 revolu tions of the crank per minute. 11.121--18 Man test for eases and vapors; Tjpe B and T.'pe Bli respira tors; test rcquiiements. (a) The completely assembled respi rator will be worn in a chamber contain ing 0.1 0.025 percent isoamyl acetate vapor, and the intake of the hose, and not more than 25 percent of the hose length will be located in isoamyl acetatefree air. (b) The man in the isoamyl acetate atmosphere will draw his inspired air through the hose and connections by means of his lungs alone. 11.121--19 Man test for gases and vapors; Type C respirator**, continuou**-fIo*v eia and Type CM supplied- air re-pirators: te>t requirement**. * a) The completely assembled respi rator will be worn in a chamber contain ing 0 1 0.C25 percent isoamyl acetate vapor, the intake of the hose will be connected to a suitable source of respi rable air, and not. more than 25 percent of the hose length will be located in Isoamyl acetate-free air. (b> The minimum How of air required to maintain a positive pressure in the respiratory-inlet covering throughout the entire breathing cycle will be sup plied to the wearer, provided however, that airflow shall not' be less than 115 liters per minute for tight-fitting and not Jess than 170 liters per minute for loose fitting respiratory inlet-coverings. (c) The test will be repeated with the maximum rate of flow attainable within specified operating pressures. 11.12*1--20 Man test .for gases and vapors; Type C supplied-air respira tors, demand cn'd pressure-demand classes; test requirements. (a) The completely assembled respi rator will be worn in a chamber contain ing 0.10.025 percent isoamyl acetate vapor, the intake of the hose will be con nected lo a suitable source of respirable rtor. mote than 25 nrirent of the ." h-ag'.'.t v.~.!l be locate--:: in i.-.o.'-inyl a.-ci '.'.c- tree air. tb) The test will be conducted ar the minimum pressure with the maximum hose lenfp.'.-: and will be repeated at the maximum pressure with the minimum hose length. 11.12*1--21 Tests for protection during abra-ive blasting; Type AE, Type BE, and Type OK -upplied-air respirators; general performance requirements. () Tests will be made under condi tions of typical abrasive blasting opera tion. <b) The tests prescribed in ! 11.124 22, 11.124-23. and 11.124-24 will be con ducted under the following conditions: (1) A suction-feed abrasive blasting outfiit will be used by the wearer; (2) The diameter of the air jet shall be 5 mm. (A inch);. (3) Air pressure will be 276-483 kN/ md (40-70 pounds per square inch): (4) The abrasive used will contain a composition of 99+ percent free silica (SiOA : (5) The size properties of the abrasive used will be a mixture of 90 percent by weight of essentially No. 1 sandblast sand and 10 percent air-floated fines; and () The No. 1 sand used will meet a size specification of not more than 10 percent on a 20-mesh sieve and not more than 10 percent through a 35-mesh sieve; 99+ percent of the fines will be able to pass through a 270-mesh sieve. All size determinations will be made by standardmesh sieves. (c) Tests will be conducted for 30 min utes continuously. (d) (1) The person wearing the res pirator will sandblast the inside surface of a common iron kettle of approximate hemispherical shape (about 76 cm. (30 inches) in diameter, and 113.6 liters (30 gallons; capacity). (2) The kettle will be placed with the plane of the opening inclined 45* from a vertical position and with the lowest point of the rim at about the height of the person's hips. (3) The wearer will stand at one posi tion in front of the kettle and lean over until the upper part of the body is in clined to parallel the face of the kettle. (4) The wearer will 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 head approximately 46 cm. (18 inches) from the nozzle. (5) The wearer will move his head for ward, backward, and sideways during each blasting operation. (e) (1) Air will be withdrawn continu ously during the test at the rate of 32 liters (1.13 cubic feet) per minute from the respiratory-intet covering at a point as near as convenient to the wearer's nostrils. (2) Simultaneously air will be drawn at ti.e -.crr r.Vc from the ;o",cf in- t-.ke a'*.- to ;he rc.q,irate:-. (i) Respirators tested in acco.-j.-rtce with 55 11.124-22. 11.124-23, and 11.124-21 fhail meet the following .'.'ini- mum requirements: (1) The amount of particulate matter in the air withdrawn from the respira tory-inlet covering shall not exceed the amount of particulate matter supplied to the respirator by more than 0.5 mg. for the 30-minute test period; (2) The wearer of .the respirator in this test shall not experience undue en cumbrance and discomfort because of the fit, air delivery, or other features of the respirator; and. - (3) The head and shoulder covering shall adequately protect the wearer from 'discomfort or injury due to im pact or abrasion from the rebounding material during the test. 11.124--22 Test for protection during abrasive blasting; Type AE supplied- air respirator; test requirements. (a) The respirator will be arranged as prescribed in 11.12+-17(a), and the tests prescribed in 11.124-21 will be performed. (b) The wearer will draw his in spired air through the hose, connec tions, and all parts of the air device by means of his lungs alone (blower not operating). (c) The test will be repeated with the blower in operation at any practical speed up to 50 revolutions per minute of the crank. 11.124--23 Test for protection during abrasive blasting; Type BE supplied- air respirator; test requirements. (a) The respirator will be arranged as prescribed in I 11.124-18(a), and the tests prescribing in 5 11.124-21 will be performed. (b) The wearer will draw his inspired air through the hose, connections, and all parts of the air device by means of his lungs alone. 11.124--24 Test for protection during abrasive blasting; Type CE suppliedair respirator; test requirements. (a) The respirator will be arranged as prescribed In 5 11.124-19(a), and the tests prescribed in 5 11.124-21 will be performed. . Subps.-t J. i 11.124-3) FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022167 6264 RULES AND REGULATIONS T3 d-*3 "t3 3221<I 1I"1 liilals ll2 *a2S .OpC.---O ecw5go* -raa2^o- w2"J2 J|giS|^oSnf 21*.a22* 2^""23--S rK- 'j` wV 3u=^: <*>'05(: S,a3^-Cau!'> - cO -- q^aO-o. 2^ Sp 'sS h^" 'sS lS5^i <a5ac3sacsq"?.&a* *s?ScS2. >SSoX_'W^Ss'-i's^usO^tCSorSCfi *S**g*^35? 8SelalHf s -- _ O- - S-r-weSaO U S G w2 a 2 - fi'i self^fQtiuhd5ct -< S6/_S_ ."s*.=*2 =C.ti? biLo-_^a_<a_o_ S= if-crS.g a Sfls-Sfi^ s SZS-s | -ooGu"-iSi^m^'oax^so^ S< ggaff{s-&^ sSe-SHsSnSlsIslIsg'.--=S, c^3gr%2bC~S2*C~*-Oc?.-ySS=4c- 5 =mh Jig Ss S'Sh 3ec!o-8SO*rj.t_5j3.S"ar 12? IwsO 32d-aSa IlllPl 'o a: o o c lift? a j o 5 j*`5"=wo-co Oc Sto " *S2 III^ s 5s o to sill T able 8.--Am -Sum T-LiN E Requirements and TESTS--Conllnucd {30 C FR Part I I , Subpart J, 511.121-7) . S3 c :oPfl gOfSJ fiow s"oM"=->5q.?--0 S2=~"S?ZSPfla~H2<n ^ o o^"5 ,, " 9jiS'sc ^,v. S- voC?.5-- s= rr!-^=sa5S?a*c8Sags0s.S..0e.Zc a. 2. O C = 2"v <*3 J= a - J<t ~ S&3J25 . sresgs gg5ps 5sOJ=*>=.^23sC?t=J..e0- W. M fcO - = , >=2!3-#*_ `2i uss3^loo^-uaLga::,,w2Ssj0 oo ls l2|=?.2o 2f3^**r I B|s lai--g_ *l |Sji Ji B - = * 2 C k.| 2^ ij =|Ss?8g.,g-t*3^s-Ii.sS.1;S?*aa02gSOg.!Q&gb3tS C CJ-3 O s > s o .= pg iCO .b^gsy^s,Cf c2 22-s32 -0S-5'r rO=i >--r-c^.jSeSsor9c?'.l- a5oK49 2 c--rP aSecp-^, a? # o *" o gw? g*ss-S5 2 *fc s j'sS"=.<:>22 SS^E= c S i. r 5i^i ! sa x" --= ?c*"a=a-- =~ = S-- s--2S 35^ s = 2~- ~ *7 dJS S Cl ii ^ CT_. g Sa*5 a .-a-- Cc-* c g^s ^ s b g Esf^s 3= a ^-hj: _ o 8'S-a-a g'Ss oS= a &> s s-?2 < 5 *o S O Nn. O > oe vn O 3 tu fiC < ; ui Q Ui Aiu-St'prtT*L]KE R equirements and 'H-sti tfO C F R Part 11, Subpart J, 1 11.124-7) l o a C3 35 .L 4 * :4: -< CAPCO JEN 0022168 .f RULES AND REGULATIONS . 6265 Subpart K--Dust, 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 tors; description. Dust, fume, and mist respirators, In cluding all completely assembled respi rators designed for use as respiratory protection during entry Into and escape ftom hazardous particulate atmospheres which contain adequate oxygen to sup port life, are described as follows: (a) Respirators, either with replace able or reusable filters, designed as res piratory protection against dusts (1) having an air contamination level not less than 0.05 milligram per cubic meter of air, including but not limited to coal, arsenic, cadmium, chromium, lead, and manganese; or (2) dusts having an air contamination level not less than 2 mil lion particles, per cubic foot of air, in cluding but not limited to aluminum, flour, iron ore, and free silica, resulting principally from the disintegration of a solid, e.g., dust clouds produced in min (1) The types of dust, fume, and mist respirators in paragraphs (a) through (g) of this section may also be classified according to their design as follows: <D Air-purifying respirators; and (2) Powered air-purifying respirators. 11.131 Dust, fume and mist respira tors; required components. (a) Each dust. fume, and mis respi rator described in 3 11.130 shall,- where its design requires, contain the following component parts: . (1) Facepiece, mouthpiece with nose- clip, 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. 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 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 (liurements* 53 11.140-1 and 11.140-2. 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 sine, 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 vitreeus enamels, chromic acid mist produced during chromium plating, and other mists of materials whose liquid vehicle does not produce harmful gases or vapors. , (d) Respirators, with replaceable fil ters, designed as respiratory protection against dusts, fumes, and mists having an air contamination level less than 0.05 milligram per cubic meter, including but not limited to lithium hydride and Beryl lium, and against radionuclides. fe) Respirators, with replaceable fil ters, designed as respiratory protection against radon daughters, and radon daughters attached to dusts, fumes, and mi;ts. 1 " ." 'vntors, with re-r.V. -< able fil ters. dv : n-ti as respiratory protection a-punsc n.-'ocstox-containing dusts and mists. 'g) Respirators, with replaceable fil ters. designed as protection against var ious combinations of particulate matter. (h; s'mglc-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 face pieces, mouthpieces, hoods, or helmets; (31 .Interference with the wearer's ac tivities; and (4) Shutoff of airflow due to kinking, or from chin or arm pressure. 11.133 Harnesses; installation and construction; minimum require ments. (a) Each respirator shall, where nec essary, be equipped with a suitable har ness designed and constructed to hold the components of the respirator in po sition against the wearer's body. (b) Harnesses shall be designed and constructed to permit easy removal and replacement of respirator parts, and, where applicable, provide for holding a full facepiece in the ready position wnen not in use. . 11.134 Respirator containers; mini mum requirements. (a) Except as provided in paragraph, (b) of this section each respirator shall be equipped with a substantial, durable container bearing markings which show the applicant's name, the type of respira tor is contains, and all appropriate ap proval labels. (b) Containers for single-use respira tors may provide for storage of more than one respirator, however, such con tainers shall be designed and construct ed to prevent cmriaminario'i of respira tors which are net remove:!, and to pre vent damage to respirators during trans it. 11.135 M-.tlf-mn-k farrpieers full f:ircpii.i-r, hoods, helmet*., and moulhpicres; !il: minimum require ment-. 11.135 Facepieces, hoods, and hel' 111els; eyepieces; minimum require ments. Facepieces, hoods, and helmets shall he designed and constructed to provide ade quate vision which is not distorted by the eyepieces. 11.137 Inhalation and exhalation valves; minimum requirements. (a) Inhalation and exhalation valves shall be protected against distort'en. fb> Inhalation valves shall be designed and constructed and provided where nec essary to prevent excessive exhaled air from adversely affecting filters, except where filters are specifically designed to resist moisture as prescribed in 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. 11.133 Head harnesses; minimum re quirements. fa) All facepieces shall be equipped with head harnesses designed and con structed to provide adequate tension during use and an even distribution of pressure over the entire area In contact with the face. (b) Facepiece head harnesses, except those employed on single-use respirators, shall be adjustable and replaceable. (c) Mouthpieces shall be equipped, where applicable, with adjustable and rep! triable harness-:.-.".. o. : .r.-:,nd con structed to hold the mouthpiece in place. 11.139 Air vehxiity ami noi-e level-; hood-, and hchuel-: minimum re quirements. Noise levels generated by the respira tor will be measured inside the hood or signed as respiratory protection against fa) Half-mask facepieces and full helmet at maximum airflow obtainable pneumoconiosis- and fibrosis-producing facepieces shall be designed and con and shall not exceed 80 dBA. FEDERAL REGISTER, VOL. 27, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022169 J 6266 RULES AND REGULATIONS 11.140 Dust, fume, and mist respira tors; performance requirements; schedule specified in paragraph (b) (2) of this section. taken during testing, shall not exceed 1.8 milligrams for any single test. general. 11.140--3 Air--purifying filter tests; 11.140--6 Lead fume test; minimum Dust, fume, and mist respirators and performance requirements; general. requirements. the individual components of each such device shall, as appropriate, meet the requirements for performance and pro tection specified in the tests described in 11.140-1 through 11.140-12 and pre scribed in Tables 9 and 10. 11.140--1 Isoamyl acetate tightness test; dust, fume, and mist respirators designed for respiratory protection Dust, fume, and mist respirators will be tested in accordance with the schedule set forth in Table 10 to determine their effectiveness as protection against the .particulate hazards specified therein. 11.140-4 Silica dust test; single-use or reuseahle filters; minimum require- nients. (a) Three respirators will be tested for a period of 312 minutes each at a continuous airflow rate of 32 liters per minute for air-purifying respirators, and for periods of 4 hours each at a flow rate not less than 115 liters per minute to tight-fitting facepieces, and not less than 170 liters per minute to loose-fitting hoods and helmets for powered air- against funics of various metals hav (a) Three respirators with single-use purifying respirators. ing an air contamination level not less filters will be tested for periods of 90 (b) The relative humidity in the test than 0.05 milligram per cubic meter; minutes each at a continuous airflow chamber will be 20-80 percent, and the minimum requirements. rate of 32 liters per minute for air-puri room temperature approximately 25 C. (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 fying respirators, and for periods of 4 hours each at a flowrate not less than 115 liters per minute to tight-fitting face pieces, and not less than 170 liters per minute to loose-fitting hoods and hel mets for powered air-purifying respira <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 ence with the face-contacting portion of the facepiece. tors. (b> The relative humidity in the test impinging an oxygen-gas flame molten lead. on (h) The modified respirator will be worn by persons for at least 2 minutes each in' a test chamber containing 100 chamber will be 20-80 percent, and the room temperature approximately 25* C. (c) The test suspension in the chamber (e> Samples of the test suspension will be taken during each test period for analysis. parts (by volume) of isoamyl-acetate will not be less than 50 nor more than (f) The total amount of unretained vapor per million parts of air. 60 milligrams of flint (99+ percent free test suspension in the samples taken dur (c) The odor of isoamyl-acetate shall silica) per cubic meter of air. ing testing, which is analyzed and calcu not be detected by the wearers of the (d) The flint in suspension will be lated as lead (Pb), shall not exceed 1.5 modified respirator while in the test ground to pass 99+ percent through a milligrams of lead for an air-purifying atmosphere. 270-mesh sieve. respirator, 4.2 milligrams of lead for a 11.140--2 Isoamyl acetate tightness lest; respirators designed for respira tory protection against dusts, fumes, and mists having an air contamina tion loti less than 0.05 milligram (e) The particle-size distribution of the test suspension will have a geometric mean of 0.4 to 0.6 micrometer, and the standard geometric deviation will not exceed 2. powered air-purifying respirator with tight-fitting facepiece, and 6,2 milli grams of lead for a powered air-purify ing respirator with loose-fitting hood or helmet. per cubic meter, or against radio (f) The total amount of unretained 11.140--7 Silira mist test; minimum nuclides; minimum requirements. test suspension in samples taken during requirements. (a) The applicant shall provide a charcoal-filled canister or cartridge of a size and resistance similar to the filter unit with connectors which can be at tached to the facepiece in the same man ner as the filter unit. (b) (1) The canister or cartridge will be used in place of the filter unit, and persons will each wear a modified half mask facepiece for 5 minutes in a test chamber containing 100 parts (by volume) of isoamyl-acetate vapor per million parts of air. 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. Cg) Three respirators with reusable fil ters will be tested and shall meet the requirements specified in paragraphs (ab through (f) of this section; each filter shall be tested three times: Once as re ceived; once after cleaning; and once (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. (2) The following work schedule will after recleaning. The applicant's instruc (c) The test suspension in the test be performed by each wearer in the test tions shall be followed for each cleaning. chamber will not be less than 20 nor chamber: (i) Two minutes walking, nodding, and shaking head in normal movements; and (ii)Three minutes exercising and 11.140-5 Silicn-duot test; single-use dust respirators; minimum require ments. (a) Three respirators will be tested. 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 running in place. (b) As described in 5 11.140-4, airflow cent free silica), and the flint shall be (3) The facepiece shall be capable of adjustment, according to the applicant's instructions, to each wearer's face, and tile odor of isoamyl-acetate shall not be . : v an- wearer curing the test. (... v,';. : a respirator is equipped in a f. f-c-picce, hood, helmet, or .ivvjfhpiccc, the c anister or cartridge will !. usicl ui place of the filler unit, and will be cycled through the respirator by a breathing machine at the rate of 24 respirations per minute with a minute volume of 40 liters; a breathing machine cam with a work rate of 622 kg.-m.Vmin- ute shall be used. (c) Air exhaled through the respirator will be 35 zz2* C. (95 :t3` P.) with 94 3 percent relative humidity. 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 ... ..-ops each wear the modified res (d) Air inhaled through the respira ing respirator, 6.9 milligrams for a pow ; m.v.-a y u;.5t covering for 5 minutes in tor will be sampled and analyzed for ered air-purifying respirator with tight- a i: si chamber containing 1,009 parts (by respirator leakage. fitting facepiece, and 10.2 milligrams for vr.lum.'i of isoamyl-acetate vapor per (el The total amount of unretained a powered air-purifying respirator with mdlii-. parts of air, performing the work test suspension, after drying, in samples loose-fitting hood or helmet. I I * FEDERAL REGISTER. VOL 37, NO. 59--SATURDAY, MARCH IS, T972 CAP CO JEN 0022170 RULES AND REGULATIONS 6267 11,110--S Testa for respirators ticri^ned for respiratory protection against more than one type of dispcrsoid; minimum requirements. Respirators designed as respiratory protection against more than one partic ulate hazard Cdust, 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 dust, 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 5 U.140-4 tlirough 11.140-7. (b) The maximum allowable resistance requirements for dust, fume, and mist respirators are as follows: , Maximum Resistance (mm. water-column height) Type of respirator Initial Final ExhftJaInhala- Inhala- tioa tion lion Dust, fumo, arM mist. with slnifie-u-ft filter___ Dust. [iirjii*,i.nd mist, with roiisable filter..... Radon daughter............... Asbestos dust and mist__ 30 60 20 40 18 25 18 26 15 20 20 15 16 i Measured after silica dust test described In 5 11.140-4. 11.140--10 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*140-- 11 DOF filter test; replicators designed as respiratory 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. (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) The filter will be mounted on a connector in the same manner as used on the respirator, and the total leakage for the connector and filter shall not ex ceed 0.03 percent of the ambient DOP concentration at either flow rate. 11.140--12 Silica dust loading tost; 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 11.140-4 and 11.140.9. Table 9.--Facepiece Test Requirements (30 CF R Part It, Subfiart K, $ 11.1FM, et seq.) Respirator tjpes Pressure Uptime Iscarayl acetate tar.t ti5t 1 1L 140-1 11. 140-2 Dnsts:Alr Contamination Level not less than 0.05 mp/M* or 2 mppcf......... Furofts: Air Condemna tion Lov*'l not Ions lima X Mists: Air Contamination Level not le.ss thaD 0.05 or 2 mppcf.. X Dusts. Fumes, and Mists: Air Cnntamu.oifon Level less than 0.05 mg/ M* or 2 mppcf, and XX XX Asbestos-containing dusts X t Teat Is required only where applicable. Table 10--Am-POBimNO and Powered Aib-Purittinq Resfiratob Filter Tests Required xob Approval (30CFR Part 11, SobpariX, 111.140-4, eiseq.) Respirator types * Load BUiea DOP Silica dust testa furae mist test ----------------------------------------- test test 11.140-4 1L140-6 1L140-12 1L140-0 IL140-7 1LH0-11 Dusts: Air Contamination Level not less than 0.05 mg/ X ........ M1 or 2 mpp^f. Fumes: Air Contamination Uvol not less than0.05mg/ ....................... M, t r.-*-1 n:>: \ r thin 0.03 mg/ .................... N * * i. Y\:^nd Mists: Air Coot v.:.ia*.lon Love! zrzz..................... * ;* .c r or 2 mppcf, nr..I r w'onurbsisa. T: i U* ........ rs.............................................................= X* .\M> on'^m.n? du*ts And mists__________ 2 X* r.................. . dust and mist respirators______________ `~z-.Tvz~.zzzi X* js: X r-. X* znz* x " 1 F .r r- Vtu-.n.'i* only. 1 or i r.rtraunn only. * l\st required only where applicable! Subpart L--Chemical Cartridge Respirators 11.150 Chcmicnl cartridge re-pirators; (Ir-rripiion. Chemical cartridge respirators includ ing all completely assembled respirators which are designed for use as respiratory protection during entry into or escape from atmospheres not immediately dangerous to life and health, are de scribed according to the specific gases or vapors against which they are designed to proride, respiratory protection, as follows: Maximum use Type of chemical ' concentration, parts cartridge respirator: per million Ammonia ______________________ ______ Chlorine ...___________________________ Hydrogen chloride___________________ Methyl amine______ ____ Zirganic vapor* *1,000 Sulfur dioxide___ ______ 300 10 50 100 50 'Not for use against organic vapors with poor warning properties or thoce which gen erate high heats of reaction with sorbent material iu the cartridge. Maximum use concentrations are lower for organic vapors which produce atmos pheres immediately hazardous to life or health at concentrations equal'to or lower than this concentration. Note: Chemical cartridge respirators for respiratory protection against gases or vapors, which are not specifically listed with their maximum use concentration except pesti cides, may be approved If the applicant sub mits a request for such approval, in writing, to the Bureau. The Bureau and the Institute shall consider each such application and ac cept or reject the application after a 'cvlew of the effects on the wearer's health and safety and In the light of any field exixaience In use of chemical cartridge respirators as protection against such hazards. 11.151 Chemical cartridge respirators; required components. (a) Each chemical cartridge respira tor described la 5 11.150 shall, where its design requires, contain the following component parts: (1) Facepiece, mouthpiece, and noseclip, hood, or helmet; (2) Cartridge; (3) Cartridge with filter; (4) Harness; (5) Breathing tube; and (6) Attached blower. (b) The components of each chemical cartridge respirator shall meet the mini mum construction requirements set forth in Subpart G of this part. 11.132 Cartridges in parallel; resist ance requirements. Where two or more cartridges are used in parallel, their resistance to airflow shall be essentially equal. *'I.I-w r.:rtriuu*s: tolor I;;.;-; requirements. n. >.-k- The color and marking's of all car tridges or labels shall conform wi;h the requirements of the American National Standard for Identification of Gcs Mask No. 59--Pt. rr- FcDERAl REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25. 1972 CAPCO JEN 0022171 6268 RULES AND REGULATIONS Canisters, K13.1, obtainable from Amer (d) Full facepieces shall provide for ican National Standards Institute, Inc, optional use of corrective spectacles or Maxiuctm Resistance (mm. tratercoluma b&lght) 1430 Broadway. New York, NY 10018. 11.154 Fillers used with chemical car tridges; location; replacement lenses which shall not reduce the respi ratory protective qualities of the respi rator. (e) Facepieces, hoods, and helmets Type of chemical cartridge Inhalation EihalaInitial Final i (a) Partisulate 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 Armly attached to the cartridge and each Alter assembly shall, where applicable, be designed to permit its easy removal from and replacement on the cartridge. 11.155 Breathing lubes; minimum re shall be designed to prevent eyepiece fogging. 11.158--1 Facepieces, hoods, and hel mets; eyepieces; minimum require ments. Facepieces, hoods, and helmets shall be designed and constructed to provide ade quate vision which is not distorted by the eyepieces. For gases, vapors, or gases and vapors................... .......... . For ga3W, vapors, or gases and vapors, and dusts, fumes, and mists.......... ...... _ For gases, vapors, or gases and vapors, and mists of paints, lacquers, and enamels....___ ........ _ 40 W w 45 70 70 20 20 20 * Measured at end of service life specified in Table 1L 11.162--2 Exhalation valve leakage quirements* 11.159 Inhalation apd exhalation test; minimum requirements. (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 At of face pieces. mouthpieces, hoods, or helmets; (3) Interference with the wearer's activities; and ' (4) Shutoff of airflow due to kinking, or from chin or arm pressure. 11.156 Harnesses; installation and construction-; minimum require- menta. (a) Each respirator shall, where nec essary, be equipped with a suitable harness designed and constructed to hold the componements of the respirator in position against the wearer's body. <b> Harnesses shall be designed and constructed to permit easy removal and replacement of respirator parts and, where applicable, provide for holding a full facepiece m the ready position when not in use. valves; minimum requirements. (a) Inhalation and exhalation valves shall be provided where necessary and protected against distortion. (b) Inhalation valves shall be de signed and constructed to prevent exces sive exhaled air from entering cartridges or adversely affecting canisters. (c> Exhalation valves shall be: (1) Protected against damage and external infiuence, and (2) designed and con structed to prevent Inward leakage of contaminated air. 11.160 Head harnesses; minimum re quirements. fa) Facepieces shall be equipped with adjustable and replaceable head har nesses designed and constructed to pro vide adequate tension during use end an even distribution of pressure over the entire area in contact with the face. lb) Mouthpieces shall be equipped where applicable, with an adjustable and replaceable harness designed and con structed to hold the mouthpiece in place. (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--5 Facepiece test; minimum re quirements. (a) The complete chemical cartridge respirator 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. tc) Any chemical cartridge respirator part which must be removed to perform the facepiece or mouthpiece fit test shall be replaceable without special tools and without disturbing facepiece or mouth piece fit. 11.157 Respirator containers; %minimum requirements. Respirators shall be equipped with a substantial, durable container bearing markings which show the applicant's name, the type and commercial desig nation of the respirator it contains and t-U appropriate approval labels. 11.161 Air velocity and noise levels; hoods and helmets; minimum re quirements. Noise levels generated by the respira tor will be measured inside the hood or helmet at maximum airflow obtainable and shall not exceed 80 dBA. 11.162 Chemical cartridge respirators; <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, 11.158 H:ilf-mak facepieces, full facepieces, mouthpieces, hoods, and helmets; fit; minimum requirements. (a) Half-mask facepieces and full facepieces shall be designed and con structed to fit persons with various facial shapes and sizes either: (1) By provid ing more than one facepiece size, or (2) by providing one facepiece size which will fit varying facial shapes and sizes. (b) Hoods and helmets shall be de signed and constructed to fit persons with various head sizes, provide for the optional of corrective spectacles or lenses, an ' re ag.-inst any restriction of movemen" >;. -.he wearer. (c) Moutr, ,:s shall be equipped v.-ith nosec:ps v. h!ch are securely at tached to the mouthpiece or respirator 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 airflow will be meas ured in the facepiece, mouthpiece, hood, or helmet of a chemical cartridge respi rator mounted on a test fixture with air Sowing at a continuous rate of 85 liters per minute, both bciore and attfr each tes: conducted m accordance with S j 11.162-5 through 11.102-3. (b) The maximum allowable resist ance requirements for chemical cartridge hoods, and helmets. (2) The. facepiece or mouthpiece may be adjusted, if necessary, in the test chamber before starting the test. <3> Each wearer will remain in the chamber for 8 minutes white performing the following activities: (i) Two minutes, nodding and turning head; (ii> Two minutes, calisthcnic arm movements; (iii) Two minutes, running in place; and (iv) Two minutes, pumping with a lire pump into a 28-liter (1 cubic-foot i container. (4) Each wearer shall not detect the odor of isoamyl-acetate vapor dining the end provid' r. v irsignt fit. respirators are as follows: test. FcDER.M REGISTER, VOl. 37, MO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022172 RULES AND REGULATIONS 6269 11.162^1 La.-quer and ciiiimcl mist Ion; respirators with fillers; tnini- 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 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 11.162-5 and 11.162-6. 11.162-3 Lacquer mist test; minimum requirements. (a) Temperature In the test chamber will be approximately 25` C. (b) Continuous airflow through the respirator will be 32 liters per minute for air-purifying respirators, and not less than 115 liters per minute to tight fitting facepieces and 170 liters par 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/m'. (10 pounds per square inch gage). (e) The test aerosol will be prepared by atomizing a mixture of one volume of clear cellulose nitrate lacquer and one volume of lacquer thinner. (f) The lacquer used will conform es sentially to Federal Specification TT-L- 31, October 7, 1953. (g> The concentration of cellulose nitrate in the test aerosol will be 95-125 milligrams per cubic meter. (h) The test aerosol will be drawn to each respirator for a total of 156 minutes for air-purifying respirators and 240 minutes for powered air-purifying respirators. (D The total amount of unretained mist in the samples taken during testing, weighed as cellulose nitrate, shall not ex ceed 5 milligrams for an air-purifying respirator, 28 milligrams for a powered air-purifying respirator with tight- fitting facepiece, and 41 milligrams for a powered air-purifying respirator with loose-fitting hood or helmet. 11.162--6 Enamel mist test; minimum requirements* <a) Temperature in the test chamber will be approximately 25* C. CD) 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 to U.-";--;ttIr.g hoods and helmets of po-.vr.el air-purifying respirators. (c) Air.'.pw through the chamber will be 20-25 air changes per minute. (d) The atomizer employed will be a No. 64 nozzle with setup 1A, or equiv alent, operating at 69 kN/m'. (10 pounds per square inch gage). (e) The test aerosol will be prepared by atomizing a mixture of 1 volume of white enamel and 1 volume of turpentine. (f) The enamel used will conform es sentially to Federal Specification TT-E489b, May 12, 1953 (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 unretained mist in the samples taken during testing, weighed as ash, shall not exceed 1.5 milligrams for any air-purifying respi rator, 8'3 milligrams for a powered airpurifying respirator with tight-fitting facepiece, and 12.3 milligrams for a powered air-purifying respirator with loose-fitting hood or helmet. 11.162-7 Dust, fiime, and mist tests; respirators with filters; minimum re quirements; general. (a) Three respirators with cartridges containing, or having attached to them, filters for protection against dusts, fumes, and mists, except the mists of paints, lacquers, and enamels, will be tested in accordance with the provisions of 5 11.162-8. (b) In addition to the test require ments set forth in paragraph (a) of tliis section, three such respirators will be tested, as appropriate, in accordance with the provisions of 1511.140-1 through 11.140-14. however, the maxi mum allowable resistance of complete dust, fume, and mist, and gas, vapor, or gas and vapor chemical cartridge res pirators shall not exceed the maximum allowable limits set forth in 5 11.162-1. 11.162--8 Bench tests; gas and 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 lowing flow rates (expressed in liters per minute (i.pjn.)) for 6 hours: . Type of cartridge: Airflow rate, l.p.m. Air purifying 25 Powered air purifying with tlght- fltting facepiece 115 Powered air purifying with loose- ' fitting hood or helmet_______________ 170 (e) Two cartridges or pahs of car tridges will be equilibrated by passing 85 percent relative humidity air through them at the flow rates stated in para graph (d) of this section. (f) All cartridges will be resealed, kept In an upright position, at room tempera tures, and tested within 18 Lours. (g) Cartridges will be tested and shall meet the minimum requirements set forth in Table 11. Table il.--C irtridge Bench Tests AN!) Requirements (30 CFR Put 11, Subpart L, 111.162-8) Cartridge Test condition Test atmosphere Gas or Concentra vapor tion (p.p.m.) Flowrate . Number Pena* Minimum (l.p.m.? of tests trattoo * life* (p.p.m.) (min.) Ammonia. ............ . NH Ammonia............... .. Equilibrated____ . NET, 1000 1000 M 32 3 50 4 so Chlorine............. . Cl, 500 64 3 6 Chlorine................ . Cl, 600 32 4 5 Hydrogen chloride... Aa received____ _ . nci 500 04 3 5 Hydrogen chloride. -- Equilibrated....... . HCl 500 32 4 6 Methyl amine____ . ciiiNUt 1000 64. 3 10 Methyl amino..... Equilibrated....... . C1I* NH, 1000 32 4 10 Organic vapors.... . CCh 1000 64 3 6 Organic vapors.... Equilibrated..... . ecu 1000 32 4 Sulfur dioxide........ . so, r.oo 64 3 5 8ulfur dioxide..... .. Equilibrated..... . so, 600 " 32 4 6 50 50 35 35 50 50 23 25 50 50 30 > p'll h* *!?: t, irM tu th* indi-A'.** i '* * * a f*<Airdtor f->r respiratory m,,r* than y,* * pf or vr.por. .\q for u-e lo tvr.iiiGp.S^ -nd In chlorine. ih* nlnl'nuu lif- ali.Vt! be *bovn f*r type of can or vapor. WUre a respirator ta dcMsnod f *r respiratory prot?cuvo niors Uina one jras of a type, aa for la chlorine and snliar dioxide, the minimal life shall apply. No. 59--Pt. n- FEDERAl REGISTER, VOL 37, NO. 59--SATURDAY, MARCH 25, T9/2 CAPCO JEN 0022173 6270 RULES AND REGULATIONS Subpari M--Pesticide Respirators 11.176 Harnesses; installation and Industrial, GGG-M-125d, October 11, construction; minimum require 1965. 11.170 Pesticide respirators; descrip tion. ments. 11.180 Inhalation and exhalation (a) Each respirator shall, where nec valves; minimum requirements. Pesticide respirators. Including ail completely assembled respirators which are designed for use as respiratory pro tection during entry Into and escape from atmospheres which contain pesti cide hazards, are described according to their construction as follows: Ca) Front-mounted or back-mounted gas masks; ` (b) Chin-style gas mask; (c) Chemical cartridge; <d) Air-purifying respirator with a* tached blower; and, (e) Other devices, including combina 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> Harnesses shall be designed and constructed to permit easy rejnoval and replacement of respirator parts, and, where applicable, provide for holding a full facepiece in the ready position when not in use. 3 11.177 Respirator containers; mini mum requirements. (a) Respirators shall be equipped with (a) Inhalation and exhalation valves shall be protected against distortion. <b) Inhalation valves shall be designed and constructed and provided where necessary to prevent excessive exhaled air from adversely affecting cartridges, canisters, and filters. (c) Exhalation valves shall be: (1) Provided where necessary; (2) Protected against damage and ex ternal influence; and, ' (3) Designed and constructed to pre vent inward leakage of contaminated air. tion respirators, a substantial, durable, container bearing 11.181 Head harnesses; minimum re 11.171 Pesticide respirators; required components. ' (a) Each pesticide respirator described in 11.170 shall, where its design re quires, contain the following component parts; (1) Facepiece, mouthpiece, and nose- clip, helmet, or hood; (2) Canister with filter; (3) Cartridge with filter; (4) Harness; (5) Attached blower: and, (6) 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 Cnni-ters and cartridges in par allel ` rr-islunce requirements. markings which show the applicant's name, type, and commercial designation of the respirator it contains, and all ap propriate approval labels. (b> Containers for gas masks shall be designed and constructed to permit easy removal of the mask. 11.178 Half-mask facepieces, full facepieces, hoods and helmets, and mouthpieces; fit; minimum require ments- - (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 optional use of corrective spectacles or quirement*. (a) Facepieces shall be equipped with adjustable and replaceable head har nesses designed and constructed to pro vide adequate tension during use and an even distribution of pressure over the entire area in contact with the face. (b> Mouthpieces shall be equipped, where applicable, with adjustable and replaceable harnesses designed and con structed to hold the mouthpiece In place. 11.182 Air velocity and noise levels; hoods and helmets; minimum re quirements. Noise levels generated by the respira tor will be measured Inside the hood or helmet at maximum obtainable airflow and shall not exceed 80 dBA. ' 11.183 Pc'.ticide respirators: perform* Where two or more canisters or car lenses, which shall not reduce the ance requirements: general. tridges are used in parallel, their resist ance to airflow shall be essentially equal. 11.173 Canisters and cartridges; color and markings; requirements. The color and markings of all canis ters and cartridges or labels shall con form with the requirements of the American National Standard for Identi fication of Gas Mask Canisters, K13.1. 11.171 Filters u-ed with 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, be designed to permit Its easy removal from and replacement on the canister or cartridge. 11.175 Breathing tubes; minimum re quirements. resDiratory protective quality of the respirator. (c) Hoods and helmets shall be de signed and constructed to fit persons with various head sizes, permit optional use of corrective spectacles without re ducing the respiratory protective quali ties of the respirator, and insure against any restriction of movement by the wearer. (d) Pesticide respirators with mouth pieces shall be equipped with noseclips which are securely attached to the mouthpiece or respirator and provide an airtight seal. (e) Facepieces, hoods, and helmets shall be designed to prevent eyepiece fogging. (f) Half-mask facepieces shall not interfere with the fit of common indus trial safety corrective spectacles as deter mined by the facepiece tests In 5 11.183 3. 11.179 Facepieces, hoods, and hel 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 resistance test; minimum requirements. (a) Airflow resistance will be meas ured In the facepiece, mouthpiece, hood, or helmet of a pesticide respirator mounted on a test fixture with air flow ing at a continuous rate of 85 liters per minute, both before and after each test conducted 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: Masimou Resistance (mm. water-column height) (a) Flexible breathing tubes used in conjunction with respirators shall be dep'.c.r;.,' =:id constructed to prevent: ' r: of free he -d ruova- (2i D'-iurbance of the fit of face pieces. mouthpieces, hoods, or helmets; (3) Interference with the wearer's actU-it:?.;; and, </,) Shutoff of airflow due to kinking, -or from elfin or arm pressure. mets; eyepieces; minimum require ments. (a) Facepieces, hoods, and helmets Sunil be designed and constructed to pro vide adequate vision-which is not dis torted by the eyepiece: Cb) All eyepieces of gas masks shall be designed and constructed to meet the Impact and penetration requirements spedfieri in Federal Specification, Mask, Air line: anti.Respirator, Air Filtering, Inhalatton Exha lation Initial Final ` Trout- or back-mounted g***3 in?.*::.................. -....................... Chin-stylo gns mask........ .......... . Pow* red air-putiiymg................. Chemical rartndgo------------------ 70 is-'* G5 so 1 70 0 7u .ii `.0 * Measured at end o( the service life speeded In Tablo n. , J Resistance of f:Ker(s), cartridges), and bathing tube(s) only with blower uot operating. FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY, MARCH 25, 1972 CAPCO JEN 0022174 RULES AND REGULATIONS 6271 11.183--2 Exhalation valve leakage tci-t; ininhnurn 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. fb> Leakage between the valve and valve seat shall not exceed 30 milliliters per minute. 11.183--3 Facepiece lest; minimum re quirements. (a) The complete pesticide respirator will be fitted to the .'aces of persons hav ing varying facial shapes and sizes. (b) Where the applicant specifies a facepiece size or sizes fer his respirator together with the approximate measure ments of faces they are designed to fit, the Eureau'wili provide test subjects to suit such facial measurements. Cc) Any pesticide respirator part which must be removed to perform the face piece fit test shall be replaceable without special tools and without disturbing face piece fit. .(d) The facepiece or mouthpiece fit test using positive or negative pressure recommended by the applicant and de scribed in his instructions will be used during each test. (e) (1) Each wearer will enter a cham ber containing 1,000 p.p.m. isoamylacetate vapor for a respirator equipped with a full facepiece, mouthpiece, hood, or helmet and 100 p.p.m. isoamyl-acetate vapor for a respirator equipped with a half-mask facepiece. i.2) The facepiece, mouthpiece, hood, or helmet may be adjusted, if necessary, in the test chamber before starting the test. (3) Each wearer will remain in the chamber while performing the follow ing activities; (i) Two minutes, nodding and turn ing head; (ii) Two minutes, calisthenic arm movements; (iii) Two minutes, running in place; and, (iv) Two minutes, pumping with a tire pump into a 28-liter (1 cubic foot) container. (4) Each wearer shall not detect the odor of isoamyl-acetate during the test. (d) The particle size distribution of the test suspension will have a geometric mean diameter of 0.4 to 0.6 micrometer, with a standard geometric deviation less than 2. (e) Front-mounted, back-mounted, and chin-style gas mask pesticide res pirators and chemical cartridge pesti cide respirators will be tested tor V0 minutes and powered air-purifying res pirators will be tested for 4 hours. 11.183--5 Lead fume test; minimum requirements. Three completely assembled pesticide respirators will be tested with a mechanical-testing apparatus as follows: (a) Continuous airflow through the respirator will be 32 liters per minute for front-mounted, 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 fitting hoods and helmets. (b) The test aerosol will contain 15 20 milligrams of freshly generated leadoxide fume, calculated as lead, per cubic meter of air. (c) The fume will be generated by im pinging an oxygen-gas flame on molten lead. (d) Front-mounted, back-mounted, and chin-style gas mask pesticide res pirators and chemical cartridge-pesticide respirators will be tested for 90 minutes and powered air-purifying pesticide res pirators will be tested for 4 hours. (e) The total amount of unretained test suspension, which is analyzed and calculated as lead, shall not exceed: (1) 0.43 milligram for any 90-minute test; (2) 4.8 milligrams for any 4-hour test made at 115 liters (4 cubic feet) per minute: or (3) 6.2 milligrams for any 4-hour test made at 170 liters (6 cubic feet) per minute. 11.133-6 Dioctyl-phllv.dalc Ic.-l; miu- iiiimn requirements. (a) All canisters submitted for use with front-mounted and back-mounted gas mask pesticide respirators will be tested in an atmospheric concentration of 100 micrograms of dioctyl-phthalate per liter of air at continuous flow rates of 32 and 85 liters per minute for a test period of 5 to 10 seconds. (b) The DOP leakage through tire canister shall not exceed 0.03 percent of the ambient DOP concentration. 11.183--7 liont-h leMs; minimum rcquiremenls. (a) (1) Bench tests will be made on an apparatus that allows the test atmos phere at 505 percent relative humidity and at room temperature (25 "2.5" C.) to enter the canister or cartridge at pre determined concentrations and rates of flow, and that has a means for determin ing the test life of the canister or car tridge against carbon tetrachloride. (2) Canisters and cartridges will be tested as they are used on each pesticide respirator, either singly or in pairs. (3) Three canisters or cartridges or pairs of cartridges will be removed from containers and tested as received from the applicant. (4) Two canisters, cartridges, or pairs of cartridges will be equilibrated at room temperature by passing 25 percent rela tive humidity air through them at the following flow rates (expressed as liters per minute (l.p.m.)) for 6 hours: Type of canister or cartridge Alr-purLfylng canister___________ Alr-puri/ying cartridge_________ Powered air-punTying with fitting facepiece___________ ... Powered alr-purlfylng with fitting hood or helmet______ Airflow rate, l.p.m. .. 64 25 tight115 170 (5) Two canisters, cartridges, or pairs of cartridges will be equilibrated at room temperature by passing 85 percent rela tive humidity air through them at the flow rates stated in subparagraph f4> of this paragraph for 6 hours. (6) The equilibrated canisters or car tridges will be resealed, kept in an up right position at room temperature, and tested within 18 hours. (b) Canisters and cartridges tested in accordance with the provisions of this section shall meet the requirements spec ified in Table 12. 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 face pieces 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-f- percent free silica per cubic meter of air. Table 12,--Carbon Tetrachloride Bench Tests and Requirements fob Canisters and Cartridges (30 CFR Part 11, Subpan M. \ 11.183-7) Type of pesticide respirator Testconccntra* Flow fate tions. p.p.m. l.p.m. CCU ' Minimum life, Number of tests minutes1 * Chest-mounted or back-mounted gas mask (as received)................................................ ...................... 20,000 3 12 Chest-mounted or back-mounted gasmask (equil ibrated) ........................................................................ 20.000 32 4 12 Chin-style gas mask {as received)................................. 5,000 ot 3 9 Chin-styleyas mask (etjujlibiated)..... ...................... 5,000 32 4 9 Chemu jl c ir'ntr.ddy.-eo rre' s'pp'iMrattiotrr (as reomvdl ................... 1,000 1,000 1*4 152 3 50 4 Zf) IV.v r-;'l r-spirt'.* ........ . lilt.- r f,v, *v r ceiv*, <J)............................................. l,c 115 3 27 Power, d a.r-pnr.Cyn.i: rc.'pir.i'or {*.*^1 t-Qttin.: facep:c'*.* ;*r\it.TM.."l)....................................... ,, 1.000 * 115 4 .5 2 Powered air-[..ir.i\inc respirator (loose-fitt.ny hood or helmet ut r*cuved)............. ................................... 1.000 * 170 3 0 Powered air-pun/wry rj.pjrator Oo^Se-iittipy hood or helmet, pahUr-ivd)............................................. 1,000 * 170 4 23 Minimum life will be determined at 5 p.p.ta. leakage. i The flow rate shall be the effective flow rateof the device, but shall be not less than 115 l.p.&u * Th*flow rato shall be the effective flow rate of the dovice, but shall be cot leas tbao 170 Lp.nu {PR Doc.72-4116 Filed 3-24-72:8:46 amj FEDERAL REGISTER, VOL. 37, NO. 59--SATURDAY. MARCH 25, 1972 CAPCO JEN 0022175