Document jBo6vwEZpR5Vn8JmXw07R14eQ

.___________ ____________________ K,C. PROTtCTIVI EQUIPMENT " SAFETY AND WELFARE ENGINEERING STANDARD RESPIRATORY PROTECTIVE EQUIPMENT II1UC0 JAN 19(4 109 **VISgO S2H Fm 1 of 7 * * UOCUMEMT 1$ THC M O H IIIT Of L OU fO M I OC MiMOUMS AMD L O M fA N r IMC TECHNICALf INfONMATION HCRCON MAY MOT M WCO MOA ftCPNOOUCCO Ml I MOO IME fCMMISSION O f OU PONT 1. SCOPE 1.1 Thia standard provides information {or eha aclaetion, uae, and care of raapiratory protective equipment (reapiratora). The term "reepiretor" ia thia ataadard ia aaed inelaaivtly and appliaa to atraoaphere-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 expoaure to air borne radioactive eoataaiaadoa for which apecial coaaideratioo may be neceaaary. 2. GENERAL aa of October 16, 1958" together with a liat of aupplemaatal approvale aiacc 1958 caa be obtained from the Publicatioaa Diatributioa Section, U. S. Bureau of Miaea, 4800 Forbea Street, Pittaburgh, Peaneylvnaie. At the preaent time, tha Bureau doea not have approval echedulee for the following equip ment (d aad a are Da Poat approved): a. Filter-type reapiratora for protection agaiaat particulate aaroaola, each aa beryllium duetg aad faaiea, daeta impreprated with orgaaic phoaphoraa iaaecticidea (parathioa), aad radioactive aubataacaa. 2.1 Raapiratory protactivc equipment ahoald aot be aaed aa a cubedtute for adequate axhauat veatilatioa or other eagintariig control methoda. 2.2 Raapiratory protective eqaipmaat ahall ha worn at all timea where the attaoaphere may be harmful to employeea dae to aaaaual coaditiooa, aad where work ia neceaaary in cootaaiiaated or ary geo detic! eat, coafiaed areaa. i. Air-aupplied aaita. c. Chemical cartridge reapiratora for reapiratory protection agaiaat gaaaa aad vnpora other thaa orgaaic vapora. 4. Eacape-type aalf-coataiaed breathiag apparatua. 2.2.7 When the oxygen content of the air ia leaa thaa 16 percent by volume, the aytnptotne range from tacreaaad volume of branchiae aad acceleration of pulae rate to aaconacioeeaaaa aad death, depend ing upon oxygen coolant aad the degree of a per goIa activity. Se/Aenafeiaed breathing apperetoe ar hate mead with b/ewar ahe// he wane In eryfeodsficient efmetphersa. 2.2.2 Aa oxygea deficiency may iadioata a hazard ia addition to inert gaa: eg, flammability (aca paragraph 4.4), akin toxicity, or abaorptioa through the akin, patticaiarly HCN. Maxima accept able coaceatratioaa (MAC'a) of air ceatamiaaata are given ia Standard S2T. Portable oxygea aad toxicgaa detectora are covered ia Standard S3T. 2.3 Pure oxygea ahall aot bo aaed ia aenoaphereaapplyiag reapiratora. 2.4 Only aquipmeat liatad and approved by the U. S. Bataan of Miaea ahall be aaed, if acbadalaa for a particular type of equipment have keen eatablleked. (U. S. DapmUaeat of Agriculture baa approved raapiratory davicea which may be aaed for protection agaiaet certain pesticides.) e. Combination airline aad aalf-coataiaed breathing apparataa. 2.4.2 A liat of "Raapiratory Devicee for Prothetioa Agaiaat labalatioo Haaarda of Duata, Miata, and Low Vapor Coacaatrationa of Caruia Peaticidaa," caa be obtaiaad from the U. S. Department of Agriculture, Agricultural Raaearch Service, Washiagtoa 25, DC. X MANUFACTURERS XI Namee aad addreaaaa of companion to which appravala oa carreatly available reapiratory pro-tactive davicea have beea punted by tha U. S Bureau of Miaaa are givaa ia Table 1. Compact eg to which appravala have beea given by the U. X Department of Agriculture for inaactieide respiretoty protective davicea alao era indicated ia Table 1. Tha liatiag of a maaafeenrer ia thia ataadard doea aot meaa aecaaaarily that all of bia product* are approved. 4. TYPES, USE, ANO LIMITATIONS 2.4.7 lafonaatioa Circular 7S8S. "Raapiratory 4.1 A liat of the aevaral typea of reapiratory pro Protective Davicea Approved by the Bureau of Miaea tective equipment, method of operation, uea. Vendure end merchandise deei(netlene ere given le deeerlbe icatcricle end mey aef include ell eecearekie predvcti. Suberliutieat ace to be made only en epgrevel at the evrherlty initiating the vie at Itiia standard. suacomriTTaa no. te DUP 0960-471 -- U Q ]| DU 040687 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 protaction 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 % 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 in r* no 33 O CONFIDENTIAL DOP 0960472 DU 040688 JANUARY 1*44 iw respiratory protective equipment S2H fit* 3 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* __ V.- OUP 0960473 DU 040689 Wh JANUARY 1964 RESPIRATORY PROTECTIVE EQUIPMENT Pass *___________________ _________________________________ _______________ _________________________ A m 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 ~ ** 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) j IT1 C a * L _ SUP. BY 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 plliiiiifl DUP 096047-4 DU 040690 '*ittgiaiiMiiteiBMi--am, DU 040691 1VIIN1P'" DU 040692 JANUARY IMA \\* K, U RESPIRATORY PROTECTIVE equipment SIN TARLE 3 - SELECTION OP RESPIRATORY PROTECTIVE DEVICE Oxygan daflelaney HiiwJ (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 U uuri iR th ! litvttiKti. i CONFIDENTIAL OUP 0960477 __ DU 040693