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PROTtCTIVI EQUIPMENT
f" SAFETY AND WELFARE
ENGINEERING STANDARD
RESPIRATORY PROTECTIVE EQUIPMENT
II1UCS
JAN 19(4
109
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S2H Page 1 ( 7
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IN fO N M A T IO N HCRCO N M A Y MOT M W C O M O A ftC P N O O U C C O M l I M O O IM E fC M M IS S IO N O f O U P O N T
1. SCOPE
1.1 This standard provides information {or eha aclaetion, use, and care of respiratory protective equipment (reapiratora). The term "respirator" ia thia standard ia aaed inelaaivsly and appliaa to atraosphtre-eupplying and air-purifying davicea that provide breathable air to the wearer withia the limita of tha equipment, whatavar the aoaree of air. Thia ataadard doea aot apply for expoaurt to air borne radioactive contamination for which apecial coaaideratioo may be necessary.
2. GENERAL
as of October 16, 1958" together with a list of supplemental approvals since 1958 can be obtained from the Publications Distribution Section, U. S. Bureau of Miaes, 4800 Forboa Street, Pittsburgh, Pennsylvania. At tbe present thus, tbs Bursas dote not have approval schedules for tha following equip ment (d aad a are Da Post approved):
a. Filter-type respirators for protection agaiaat particulate aerosols, each as beryllium duets and famas, dasta imprecated with organic phosphorus iaaacticidaa (peratkioa), aad radioactive subataaeea.
2.1 Reapiratory protective equipment ahoald aot be aaed aa a aubatituta for adequate exhaust vantilatioa or other tagineariag control methoda.
2.2 Reapiratory protective eqaipmeat ahall ha worn at all timea where tha ataoaphare may be harmful to employeea dae to aaaaual coaditiooa, aad where work ia neceaaary in cootaaiiaatad or oxygaadeficient, confined arena.
h. Air-eupplitd oaita.
e. Chemical cartridge respirators for res piratory protaetioa agaiast gaaas aad vapors other thaa orgaaie vapors,
4. Escape-type self-contained braathiag apparatus.
2.2.7 When the oxygen content of the air ia leaa thaa 16 percent by volume, the eytnptotne range from tecreeaed volume of branchiae aad acceleration of pulae rate to aacoaacioeaaaaa aad death, depend ing epoo oxygen coolant aad the degree of a paraoia activity. Seff.contained breerhing apperetoe or e haae mead with h/ewar aha// he wont in serpende/icianr ermaepharet.
2.2.2 Aa oxygea deficiency may indicate a hazard ia addition to inert gat: eg, flammability (ata paragraph 4.4), akin toxicity, or absorption through tha akia, particularly HCN. Maximum acceptabia coacaatratioaa (MAC's) of air ceataaiiaaata are givaa ia Staadard S2T. Portable exygaa aad toxicgas detectors era covered ia Standard S3T.
2.3 Pure oxygea ahall aot bo usad ia atmosphereeepplyiag respirators.
2.4 Ooly sqaipmeat listed aad approved by tbe U. S. Sanaa of Miaas shall be used, if ecbedalse for a pardeolar typo of equipment have beet es tablished. (U. S. Depatfeat of Agricultaro baa approved reapiratory davicea which may ha used for protection agaiast certain pesticides.)
a. Combination airline aad atlf-eontaiaed braathiag apparataa.
2.4.2 A list of "Rtapiratory Devi cat for Prothetioa Agaiaat labalatioa Hasarda of Dusts, Mints, aad Law Vapor Ceacaatratiras of Ceruia Pssticidas," eaa be obtained from tba U. S. Dapartmaat of Agriculture, Agricultural Rasaarcb Service, Wash ington 25, DC.
X MANUFACTURERS
XI Names aad addresses of coopanise to which approvals aa cairaatly available respiratory pro-tactivs devices have been posted by tha U. S. Bursas of Miaas an givaa ia Tabia 1. Companies to which approvals have bssa givaa by tha U. X Dapartmaat af Agriculture for insactieids respira tory protactiva davicea also are indicated ia Tabia 1. Tha listing of a maaafaeursr ia this ataadard doea aot ataaa necessarily that all of hit predict* are approved-
4. TYPES, USE, AMO LIMITATIONS
2.4.) Information Cirealar 7S8S. "Respiratory 4.1 A list of the several types of respiratory pro Protactiva Davicea Approved by tha Bsreaa of Mines tective equipment, method of operation, use.
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S2H
RESPIRATORY PROTECTIVE EQUIPMENT
JANUARY 1W4
ii-matione, and rimerka is fives in Table 2* For tiontl information in thin regard, reference
nould be made to:
American Stnndnrd Safety Code for Head, Eye, and Respiratory Protection, 22.1, American Standards Association, 70 East Forty-fifth Street, New York 17, NY
Respiratory Protective Equipment, Data Sheet D--444, National Safety Council, 42S North Michigan Avenue, Chicago, Illinois
Respiratory Protective Devices Manual published by Amen can Industrial Hygiene Association and American Conference of Governmental Induatrial Hygieniata (copica are available from Braun and Brumfield Inc, Box 1203, Ann Arbor, Mich.
contaminated area with respect to a source of respirable air, (g) expected activity of tha wearer; (h) operating characteristics and limitations of tha available respirators (see Tabla 2).
5.2 Table 3 lists tha hazards and tha respirators that are recommended to afford rtspiratoty pro taction against them. By reference to this table, and bv considering the foregoiag factors, the user can determine the type of 'respirator that should be used.
4. PRECAUTIONS
6.1 An extensive list of instruction in not and precautions for each type of respirator is gives is the previously referenced ASA Z2.1. Some pre cautions sre given is Tshle 2 under headings of Limitations sad Remarks.
4.2 The air-purifying respirators, ie, eanister yes masks, chemical corfrIdye respirators, and mechani cs! filter respirators (Table 2C) shell net be used for rescue work, or for emeryency work ef any nature. This is because these respirators require at least 16 percent oxygen in the air. Other reasons for this requirement arc that (a) gas masks are intended for use with no more than 2 percent of most toxic gases, and (b) chemical cartridge respirators are approved for no more thaa 1000 ppm by volume of organic
r in air.
1.3 Use of canister masks that bear tha label "AllService,' "All-Purpose,** or "Universal** has oeen prohibited by the Safety and Fire Protection Oivision.
4.4 Although aslf-containtd braathing apparatus
and host mask with blower have no coneaatratioo limit in regard to toxicity, many toxic gaoeo and vapors are flammable and the user could bs exposed .o a potential fire or axplotioa. Tha 2 percent concentration limitn approved for toxic gas removal with canister-type masks may be within tha flam mable range for tome gasat. Standard F6J provides nformstion and instructions for use of portable 'lammablt vapor tail gas detactors.
6.2 The manufacturer's instructions should bs
posted with the respiratory dtviet. R'hare these rt sot available, preesutioas of ASA should he posted et the respiratory storage locations.
4.3 All persons who may have occasion to aoe respiratory devices, or cause than to ba asad, should be properly trained in thtir uat before cir cumstances require that they uaa them to protect
their jives and tha property of the Company. Also, in execution of plant disaster pleas, proper traitini in ute of respiratory protective equipment will aid in the performance of smooth aad oafs roseao or ropair operations.
}. CARE ,
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7.1 Goners!. A centralized maintenance, cleaning,
and atoragt station should be used to care lor res piratory protective equipment.
7.2 Procedures Applicable to Alt Respirators
7.2.1 /nepeetien. All respirators shall bt inapaetad at rtgalar intervals to make ears that they sre ready to ua*. it is good practice to integrate the respiratory and fife-extinguisher inspection and maintenance program.
S. SELECTION
5.1 In general, in ehooaiag a respirator, tha fol lowing factors should be considered: (a) nature of -he hazard; (b) seventy of tha hazard. (Only selfcontained breathing apparatus ar hose ataak with blower, shall be used is oxygsa-dsficisot ataosohtres or where the contaminant la, or may be, .mmedietely dangerous to life.); (c) type of containmint; (d) concentration of the coalmainaav (e) oeriod protection is required; (f) loeatioa of the
7.2.2 Maintenance. Then it is accessary to raplaee worn or deteriorated parts, only those made specifically for the device should be ttaed: and the repair work should be accomplished by trained personnel. For most plants, it is preferable that parts of this type be replaced as a sail or rctamed to the masufactarer for repair.
7.2.3 C/eeniny and Oialafattlny. Respiratory protective equipreeot, except canisters aad cart ridges, should bs claaoad aad disinfected after
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CONFIDENTIAL
DOP 0960472
DU 040688
JANUARY 1*44
iw respiratory protective equipment
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eh oat, mImi sained to individuals. Reapfratory equipment can ba cleaned with detergent and lukewarm water by hand breaking or agiution in a waahiog machine, rinaed, and dried. The quattreaty ammonium aait disinfectants* are rtcomended (or aierilizing raapiratory davieaa, ainee they are not particularly irritating to the akin if the) are not completely riaaad {ram the device after atarilizatioa.
7.2.4 Starope. All raapiratory protective equip ment ahould be atorad ia a clean, cool, dry place, sot of direct sunlight, under condition! of moderate temperature ( Chemox maak ia Table 2B).
7.3 Spatial Pracadurea (or Maintaining, Cleaning, Ditinfacting, and Staring Raapiratara
7.3.7 Sa/ACanrafnaW rnnfhfng Apparatus. In demand-type (Table 2B),tha cylinder praaaure ahould at checked periodically and brought to rated pro cure if acceaaary. Recharge after each aac, fol lowing manufacturer'a inatructiona. Follow many facturer'a inatructiona on tightocaa tecta for aclfcontained reepiratora.
7.3.2 Nona Maak a. Chech the blower period ically for proper operation. Check boat for wear uid tear after each uaa and ataam clean when sectsan. Keep hoae capped when not in ana to prevent entrance of dual or other contaminants,
7.3.3 Air-Lim MaapJrefara. The faeepieee ahould be serviced after each uaa, an (or all other eapiratora. The flow eeatrol valvea ahould be inapected after each aad cleaned and repaired, if neceaaary. Air-line hoae ahould be checked
for wear and tear after each uae and be ateam cleaned when neceaaary. See Standard Sill on airapply ayatem.
7.3.4 Coe Meaia. The caniater ahould be re placed at leant annually whether or not it haa been need. At the time of replacement of caniater, the face-piece, bamcaa, hoae, and headband ahould be examined carefully for any aigaa of laak or dete rioration, aad ahould be replaced if any are found.
7.3.5 Se7>Vaeevora. Frequent inspection is the moat important phase of tba maintenance pro gram with thia type of equipment because the equip ment is seldom used but always must be ready.
7.3.5 Chemical Cartridge Raapiratara. Chemi cal cartridges ahould ba changed whan the wearer detects tha odor or iiritating affect of the contami nant. In plants with caatralixcd maintenance sta tions, cartridges aomatimaa arc discarded after a given period of uaa (baaed oa group experience); but, in moat cases, tha wearer ia responsible for discarding aad replacing cartridge# in his respira tor. Particular cart should be exerciaed in tha atoraga of ebonies! cartridges because they usuallv deteriorate if exposed to excess moisture and to gaseous air contaminants. Cartridges ahould not ba atorad ia the area where it ia necessary for tba workman to ana chemical cartridge respirators.
7.3.7 Machanfeaf Rffrar Ratp/ratort. Mechani cal filters of tha "direw-away" type ehould be diecarded when tha braathiag resistance becomes bothersothe to the wearer. Some mechanical filter respi rators uaa raclaanabla filters, ia which ease the filters arc cleaned when tha respirator is being serviced.
CONFIDENTIAL
* w;iltn GermiaClelh; Amoncon Optical Ce, No. 101 and 102 Germicidal D#fef#e*t; PvimeM* Somtitcr,
MtA Cloenor Softitise*
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V.- OUP 0960473
DU 040689
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JANUARY 1964
RESPIRATORY PROTECTIVE EQUIPMENT
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TABLE I - APPROVED RESPIRATORY PROTECTIVE DEVICES*
* Acme Protection Equipmont Co, 1201 Kalamaxoo St, South Hovon, Michigan Ameneon-LoFronco Carp, Elmira, NY
'* Amanean Optical Ce, Southbridgo, Matt. Sink* Manufacturing Co, 3114 Carroll Avt, Chicago 12, III. E. 0. Bullard Co, 2680 Bridgeway, Sautolita, Cali I
** Chicago Eys Shield Co, 2727 Watt Roteoa Sr, Chicago 18, III. H. S. Cover. Station A, South Bond, Ind Oavn Emorjoney Equipment Co, Inc, 45 Holleek St, Newark 4, NJ The DeVilhitt Ce, Toledo 1, Ohio Globe Induitriei, Inc, 125 Sunrito Piaco, Dayton 7, Ohio B. F. McDonald Co, 5721 Watt 96th St, Lot Angelet 45, Calif Merollmng Engineering Co, Ine, 1101 Protpeet Ave, Weitbury, NY
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** Mine Safety Applioneet Co, 201 N Broddoek Ave, Pittsburgh 8, Pa. Mine Safety Appliancet Co, Ltd, Quaentlie Industrial Estate, Glasgow E 3, Scotland Pengbern Corp, Hagerstown, Md
*' Puimoson Sofety Equip Carp, 644 Pacific St, Brooklyn 17, NY Scott Aviatfsn Carp, Lancaster, NY U. S. Divers Co, 3323 Watt Warner Ave, Santa Ana, Calif W. W. Sly Manufacturing Co, 4735 Train Ave, Cleveland 2, Ohio Walsh Menulacturing Co, 9 Magnolia St, Providence, Rl
** Willson Proii Div, Roy-O-Vec Co, Reeding, Pa. (formerly Willson Prod, Inc)
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TABLE 2 - TYPES OP RESPIRATORY PROTECTIVE EQUIPMENT TABLE 2A - AIR-SUPPLIED SUIT
Method ef Opeiatiea Use Limitations
Remarks
Air supply from supplied air on telf-canteinad hreathint apparatus.
Rescue work or repair work where there is exposure to substances that we irritating er corrosive to the skin and mwcuous membranes and are also acutely toxic.
Air must be supplied to the suit as well as to the mask. The wearing of an impervious suit for any extended period is extremely fatiguing and dangerous unless it is wall ventilated. The suit must be impervious to the substance encountered.
No generally accepted specifications. For additional information, see Flaming, A. J., D'Alonxo, C. A., and Zapp, J. A., "Modern Occupational Medicine," Chapter 7, "Protective Clothing for the Chemical Industry," Lea and Febiger, Philadelphia, 1960. See Standard S1H on air distribution system.
CONFIDENTIAL
' Aeerevels an currently available reaeirsrery srataativa device* which hove keen treeled ky U. S. Buraev el Mines
** Aeererai yiven >y U. 1. Department el Agriculture far sartein pesticides
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DU 040690
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DU 040692
JANUARY IMA \\*
K, U RESPIRATORY PROTECTIVE equipment
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TARLE 3 - SELECTION OP RESPIRATORY PROTECTIVE DEVICE
Oxygan daflelaney
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(ioiaaua eontominont iatnadi Italy dangaraua ta Ufa
Nat immadiataly dangaraua ta Ufa
f'artieulota cantaminant
Combination gaiaaua and partieuiatad contaminant Immadiataly dangaraua ta Ufa
Mat immadiataly dangaraua ta Ufa
Raapiratar
S*lf-c#ntin*J Wfhig ^yaratui Hoi# motk with biw*r
Salf-containad braathing apparatus Haaa taaab with blawar Air.lina raipirOtas'"* Haaa maak withagt blawar ChamieaUaartridaa raapiratar Maehanieol filttr raapiratar Air>lina raapiratar Aaraaiva-blaafirtfl raaairator
Salf*cantainad braathing apporatua Haaa maak with blawar
Air*lina raapiratar Haaa maak withaut blawar Cambinatian ehamieal and maehanical filtar raapirotori
MOTI: TH
bthin
h h* fwfa with hliw>r wtwirf five rpirtwy ptfvcltn
Mint* fiy f th* htiord* iUf*4r bit th* * mtm **t tf*iu44 in th list { r*pirdw ht ctvitf
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CONFIDENTIAL
OUP 0960477
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DU 040693