Document MpLdmZRzK9RM2R4OGB17OaLj

ENGINEERING STANDARD MEASUREMENT AND CONTROL OF AS8EST0S OUST EXPOSURE iBkWteO this p At P C Vi SCO 1 TANO APO PCAFP'RMCO APRIL 1973 OCT 1979 OCT 1979 S4T Pag* 1 of 6 Ttu* uanttard includes requirements at ine Occupational Safety and Health Act at 1970 (OSHA) at pubtianed in the Federal Register. OSHA Information ia pnntad In rad. 1. SCOPE 2A Some mati'risis cuiiUming bound usbestus libers an nul Ituarduua during normal use. Examples arc: bonded i 31 z a. l0 w -0 Iz +0 1.1 Tlti standard presents that permissible a,bolus dual rxpuaure limits, methods of conlrulling asbestos dual expuaures, special OSHA requirements for retnuval of asbeatue insulation, respiratory protective equipment, ami mrtltod of sampling asbeatue dual ouncenlraltona in tlie cuiuprcsaed aabestua gaskets, sabestiw ruofiug fell, Tefbm* impregnated asbestos packing and fibrated asphalt cutback (mastic). Tltcsc materials could Ixvume liaaardous if asbastus fibers are released because of loss of binder or a physical action such aa grinding. I work area. It presides sufficient ioformatioa to comply i* with OSHA and ERA refutations hut fui<lance from the 2J A material which contains asbestos which might 0UVt y*w <az y*r trt A Ii o: 2* Du Hunt Lefal Dept ahould ha sought whenever an in terpretive problem arises. 1.2 An Aibeatos Compilenee Package can be obtained from llm Oocupatiunal Environmental Control group of ESD. Kef (1) contains extensive additional information. 2. GENERAL become airbume should bo treated as asbestos unless H is determined that the sabastua present is nut a potential health haxanL Tale, vsrmiculiw, and other inincrala are listed by Appendii 1 of Ref (1) ss possibly containing 3. PERMISSIBLE EXPOSURE UNITS z o 3-1 Asbestos fibare concentrations in air shall nut exceed -Qw 0az. 3 a ?*2yua3( Zz 2.1 Asbeetoaia and cancer are aaaocialed with expoaure to asbealoa. Historically, the incidence of theae diaraeae haa been significantly higher among asbestos worker* than among the general population. Cigarette smoking greatly increases the imadenos of respiratory cancan from ex an t hour time weighted average (TVA) of 2 fibers lunger dun $ micrometers par cm* of air. At no time may (ha eoneantretiun exceed a ceiling of 10 fibers longer than S mkrametare par cm*. -s posure to asbestos. Asbestos exposed persons who smoke 3.1.1 The (Lhour time-weighted average (TWA) u> "y 0y 0 have a 90-fold increaae ia riak from lung cancer over non- (lie average eunceolretioo occurring over a period of smokers Kef (2). S continuous huure. 22 Principal potential sources of exposure to airborne asbestos dust in Company operations eras , 3. L2 Uy far tile majority of asbrstua us,l for in sulation is the chrysutile form. Other fomw of aaliestos diet have lower pnipusml rxpuaure limits (ACUIIi Tl.Va) a. Removing old asbestos remaining insulation are rarely used. Fur more complete infomialiou un line SJ "i-/i 0yz from lines and vessels b. Removal, handling, and blundering of asbestoscontaminated clothing oilier linula refer u> S2TTable 4. The OSHA |ieruibauble rxpuaure limit listed iu -3.1 is (lie same fur sit funua of aabealua. 5S C. Cutting aabealua cement (Transits) siding, 4. CONTROL OP ASBESTOS OUSTS Si 3 j, roofing, pipe, etc, or Haveg pipe and oquipnasnt 4.1 Engineering Cootrola, such as, but uut liuulod lu, 0 d. Maintenance and operation of machinery ami isolation, rnduaure, sxhaust veatiUliom and dust collec 0X irt o vehicle brake linings . tion shall be used to meet the permissible exposure limits jl S. Opening buses and removal of new asbestos in 3.1. materials 4. LI laical axhauat ventilation and ihiat cuilcciiuu l Handling aabateee malariala used in production systems shad be in aeaurdenoa with ANSI Z92-IV71. O z of Company graduate. "Punilam-null Governing the Design and Operaliou of Local Fihensl Systems." g Repair of Isbaretery equipment with asbestos insulated heaters (s4* gas chromatographs, lab ovens) 4.L3 Additional iidbruMliun ou die ilrsign nf ven. lilaliun systems ia cuutained in Dll 1U, 1130, LH-2UU and h. Cleaning and maintananre ofvacuum aystrmalbr Kaf (1) and (6). coliectiun of sabaatna fibare ateaas HVMaVmvOUThi^Mo Aatmatnva ZJ Suilabia nnnsabeams subatiliitei should bo sought far asbestos-containing materials whanuvst their use can 0.1 Insofar aa prectiaaL sabsslie dial! be handled, result in a relaaaa of sabaatna fibers. mixed, applied, removed, cut, scored, or uilierwue romans prunes m m mm 09HA wguiinm*. mm tsio.wet damns* m. Venders and aerehendite desigaetlane are given te daacriba aieteeieia and msy net inclods sll acceptable precucit. Substitwtiens by toppiiaca are la be nede only an appravai si the least sothsrity Initiating the one ef Ihit standard. suecouMiTTEC no. aa DUP 1120459 DU 055272 S4 T Page 2 MEASUREMENT AMO CONTROL OF ASBESTOS OUST EXPOSURE Thia Pag* Rev July 1982 worked In a W04 *tala sufficient to prevent Um uiuiaaiun of airborne fiberi in cxeeae of the exposure limits in section 3. 4.2.2 Housekeeping. All external surface* ahell be muiiiuinoti free of aabeatue fiber* if, witli llioir dispersion, there would be sn excessive concentration. a. AU areas where aibeatoa is routinely handled hall have a vacuum cleanup sysleoi. Tliia can be a system of hose* connected to a central vacuum system designed in accordance with 4.1.1. b. No <by (weeping dull be performed Ccotpressed air boas is not to be used for cleanup. 444 Caution signs and labels aboil be wed per section 11. 444 No aabeatoa cement, mortar, eta, or similar material containing dry friable asbestos fibers shall be removed from begs, cartons, or other ooouiner* in which they are shipped without being either watted, enclosed or ventilated to aa to prevent efleetivaly the release of asbestos fibers in excess of the limits in section 3. 4j Tools Deed on Asbosloo 44.1 Avoid tawing where possible; keifs cutting ie preferred. 444 AU hand-operated aud powar-operatad tuois which may produce or release sibastes fiber* in excess of the permisnhla exposure limits (iou saws, spores, abrasive wheels, and drills) shall ba provided with a dwt-eeUecthm system aa (peadied in 4.1. 444 AU aibeatoa anting oparations should be iaoleled to minimise unauthoriaad aooaas. Tltie een be e temporary area for noaroutiaa opsrstiana with bartieadm and signs par section 12. Routine work should be isolated in a properly posted asperate work area. 44 Removal of Aaha*too InaidHon 44.1 If the composition of the malarial is unknown, it duU be treated as being sabeetca. For use of labels to idantify nunsibeatua imtilithm, tee SN21SP. 444 Proper raspsralora (par seat!an 5) and apaeiai protective clothing (par seetien 9) shall be provided ail employees sogagad in raeaeeel or ilawalltiim of i insulation or omenmg. Atmosphere supptyiag i (54) are required except where it has dearly bean demomtrated that the wet method ie offset!** amt monitoring ba* ditwn that lavala an the job here readied in lower . removal and reinauiUtiun for equipment maintenance or other reasons, providing the technique* employed have been demonstrated to maintain aabeatoa concentrations within exposure limits of section 3. b. The clothing roquirciueut doc* not apply to removal for maintenance or alterations when the wet method is uaed and ineuilering of identical work lies shown the precaution* mainuin aabeatoa concentration* withiu the ceiling limit of acctiuu 3. 444 The work ares shall be barricaded and caution aigus afaaU be potted a* daaerihad in section 12 at approaches to area* whore aabomni malarial* are beii* handled. This raquiremom duo* not apply undtr coo* ditioae described in 4441 a and k AU tibaatna mstariala afaaU be thoroughly wetted and sups taken to insure that they remain wet until placed in sealed impermeable bag* or other OQQlMJMfV iBilsIdl |Mf UUCtMlM 12. Wetting may hare to b* suapeailed on outaids oparauoo* whan temperature* get below 0*C If aabaatua cannot be wetted due to freesing temperatures, it should to the extent be rsuwvsd a* unit section*. 444 Support fastaners ahaU ba rasaoved with car*. Handle aabeatoa containing mstariala in such a manner to minimi** generation of airborne aibeatoa fibers. Do no* drop. 444 Keuauved aalwetoa luatariai* shall not be allowed to lie abuut the work area, but shall be iin* i lags. 444 Maintain good housekeeping. Vacuum *quip> nmnt masting requirements of 4.1.1 shaU ba wed to pCWWM IfHMt aoCIMKlUlMHa of infyBMOlfle 9. fUESPIRATOflY SQUMUENT 5.1 Ueapiretury pruteetiun shall be provided to all |M-r* aounal in area* wiser* panuiasibis exposure limit* uiay be exoeeded or wliera asbeatw ie being raosuved (see 444.1). Ueepirqtury protection can ba wad to usaet parmiaaibla expueurs limits only under the following OUWlitMMN a. During tbe lima naeaaaary In inatail engineerii* oomrula par 4.1. Vrittan plana for the installation of engineering control* or reasons why they are nut feasible b. When engineering ountrela are technically not uf ImmAiommI in ataak cIm linili is isciiiMi 3* o. la 4441 At a minimum, air purifying respire*** (54) and special clothing shall be were (hiring the removal of ssbeatos iemitting Many plans* hare had dispcnaM* dust ouaha (541) (NIOSU approved (at aabeatoa) and liqininbls paper clothing, satisfactory. 54 If respirator* are required, a written respirator program aknU be prepared 541 Standard S2H should ba referred to for further gindana* in establishing a a. This requirement do** not apply teraareval of 544 AU respirator* should ba NIOSH/MSHA iwmifyj^ Mad proUMUd it witlMtisi approved (or we with . Worsen* prone* Is no awm OMA lefutaUaaa, talktoot (Samwny Mat ttr M I a* Oaaltaa titktM. OUP 1120460 DU 055273 + 24* + Thia Pegu Rev July 19*2 measurement and control OF ASBESTOS OUST EXPOSURE S4 T ' Pag* 3 SJ Air purifying (mechanical filler*type) reapiratura .hall lie uaeii when ihe TVA ur ceiling cuncentratiunc are reaaonabiy expected tu exceed on mure dun Id lime# the limiu in auction 3. 5.3.1 Although OSHA permita uae of both aingie uoe ur rciawble air purifying rmpinitore fur up tu 10 lime* the limit* in aection 3. more recent raapirator tooting haa indicated that tingle uae aud quarteruuaak reapiraiun ihould not be uaed for more thaa S timet the limiu Ref (10), (11), and (12), Haifdaee air purifying empire* ton are teoapeahie far uae at up to 10 timet the limiu* 54 Auaoephar* auppiying (Type "C* cuntinuow flow ur preaaurodemand suppiiad-air reapiraiun. Table 10 uf S2H) reapinton dull be uaed when the TVA or ceiling concentration! are reaaonaUy expected to exceed 10 timer the limiu in nation 3* (41 While powered air purifying reapinton are per* mined by OSHA when ooocenlration* are expected to be between 10 and 100 timas the limiu in taction 3, theca uniu are aaldom med on Company plaau. . IDENTIFICATION OP ASSESTOS IN MATERIALS SUSPECTED OP CONTAMMQ ASBESTOS (.1 BtU Metficda. Than ie no relialda Geld mathod tor confirming the abeenre of itbaetne in materiela autpected of containing ttliattna Viaual examination alone ie nut auffkiam to ooofina the abaeaoe uf aabeatue. (.1.1 A (lame MM Kef (0) uaing a propane torch can be uaed tu aereea tamplea Thia teat pruvidee reliable indicationa of the proccnoc of aabeatut, but doea nut provide a reliable iialinatimt of the abeeusa of aabeatnai V2 LaheraMry Method#. MteronaopM eiandnatteu can be uaad to datannine the promaca or abaci# uf aabaatoa in moat caaaa. When raaulta of the oMcroeoopie examination art inooualwiva, X*ray dllfrattM* will provida raiiabia result#. (XI Sample* (approaiaaalely 1 grant) can be aent to Haakell Lab (7X1) Cur iarwannpie examination. Haakali Lab wilt arrange .far x-ray diffraction analytic if the rendu of tbe ieramnpie examination are inconclusive. cox Sampiaa can be eeat to tbe Analytieai and Physical Maanaraoaant Creep, PPAK, Experimental Static* for x-ray dUfraatian analyaia (X> The K* Tout Mr Soroaahag Aebaalaa devaiopad by NIOSH ean be wed to aereen fur cilam-w Thia taat provide# reliable indication* of tbe abaence uf atbeatna However, beoeuae Urn taat ie nooapecifie, it will give Calm poaitive iiiamifiaatinw 7A Typee of Monitoring 7X1 Peraonal Monitoring. Sample. diall be taken from the breathing xona uf employee#. 7X2 Environmental Monitoring. Tbeau wimple. are taken from a fixed locution win,re tudiclua fila-rx may be releaeed. Such aampling may be uecfui in delenuining tlio need for local ventilation uf aabuatoa rclcudng tuol*. The aampling filter ia placed cloae to the area reprr* aeatative of tbe breathing tone of employeee. 7A Sampling frequency and pattorw dull bn nadt dial templm repreeenl the level ufexpwura of employee# with renomble eeeurecjr. Sampiaa for determination uf both (hour tiaaa weighted average and ceiling concentration, dtell be taken. 7X1 Sampiaa aball ba taken fur each type ofjob or when a job ia changad in auch a way at to increaae acbaflto* upoMn* 7X2 For employeea whom expuaure may reuMiu* ably be faraaeea to exceed the limiu of aection 3 tumpling hail be done at intervale nut peeler than 6 inootha. 7XS Ceiling .ample, dull be taken (or thoae dmrt taaka Car which bighrnt expoaure ia expected. Ceiling ample# for OSHA compliance leafing should be taken (ur IS minute#. Short-term aamplee may alau be taken fur diortar or longer period# (duration of a given took) 1'ur inveatigative purpuaor 7A Proceduroe 7X1 Method* of aampling aabca.ua libera in air are five* in Kef (3). Sampling pruocduraa diouJd bo reviewad with lb* laboratory which will cuunl llie fiber* lirior to aampling to help eneure proper tccluiiqije* are wed. Qualified laburaloriaa, arei E. I, du Fuel da Nranuun A Co (nduatrial Hygiene Section llaskell Laboratory CHAD Dept Wilmington, DK WIWS Clayton Environmental Coaauilanu 2571 Southfield Hoad Southfield. MI 4(075 National Lorn Control Service Corp (Lumbermen Mutual Caaually Cu) Knviru.mental Science* Laburaiury Lung Crove, 1L 50049 The sample abould be token at a raU of 1.5 to 2 litem per minute. The fiber fee* thuuid be puaitiooad ao llut fibera will nut aattle on it, 7. M0IST0MN9 7.1 If iniraring ia ta geared when* implajeri aaay bo exporad ie aahesam dun (ram aarMand aolivity, to dataretina tbe employee'# arpeiairx. 7X2 Sampling atmoapberaa cuuUiuing aabratoa fiber with law level* of other dwiti a. Fur axpueuraa expected to bo below 2 fibera par cm*, temple far 2 tn huura. Partem *nmm a. me wool (MHA lafutUana. (eenea tatO-WOt (tarwarty jjah DUP 1120461 DU 055274 S4T Pag* 4 MEASUREMENT AND CONTROL Or ASBESTOS OUST EXPOSURE Thla Peg* Raw March 1941 b. For exposure# expected to be above 2, but leaa than 5 fiber* per cm1, sample for 45 minute* to 4 hour*. c. For expoaurea expected to be higher than 5 fiber* per ciu1. sample for 30 utinutc* to 2 hour* de pending upon experience and conauitation with the laboratory .which will count the fiber*. . . 7.44 Sampling atmosphere* containing aaiiaato* fiber* with high level# of other duatai aample time* will vary depending upon the amount of other duata present. The laboratory which will oount the fiber* ahouid be oooaulted to obtain approximate naaple time*. 744 Equipment All sampling muet be doaw on membrane filter# of 04 microsnotar* poroaity mountad in an apM litwl filter holdar. Tho MilUpnre oeib*. loae acetate 04 micrometer filter, catalog number, MAWP 037A0, ia racoa--wwhd Particulate sampling oquipatent i# dtecrihod ia S13T, aectioa 10. 4.1.1 Each plant ahouid iiuinUiu li*t(>) of ciuployeea in ih* following categoric#. The plant medical department ahall he kept infunned of thoee luted. a. All employee* working in job* dial require handling of aabetto* which might become airborne (*uch aa carpenter* working with Transite, insulator*, pipe* fitter*, and-millwright*). b. AU employee* working in job* which are ex* poeed to maaaurable quantitim of aabeatoa. 'fhe lower limit of reliable quantification of the required uieaaurodmoA tfhraqm ia 0.1 fibere/cm1 of air, tee Ref (4). 44 Du Pont etedical policy alee require#, in addition, apeciel medical aurveilUne* of amployann in categoriea --fitted in 42.1. 44.1 Eooh rite ahvoid maintain liat(a) of employoee in the fallowing categoriea The plant medical department kopt of tfaon 744 Anniynto miot be dooa el qualified labor#, tories. Coraplated aample# are piaoed in a mailing tube, reeled, and aent to a qualified laboratory with 2 copie* of tho taatpling record. a. It ia roeeatmanded that aa unatpniH filter bo included with each batch of taiploa aa a blank. b. AU dateroaieatinan ahall be aaada by the meow brana filter method at 400 te 450X (ngmfmani--) (4--a objective) with phaoe cooLreet illumiawinn 74 Employ-- NetWcaMcil. Employee* ahouid bo notified of expoeure emtnring reallea. Any employ-- fouaui to here been aapeted above the permimild* * poaurc limit* iaa aaetian 3 ahall be notified, in writing, within S day* of the finding naad ofcorrective action being taken. Notification it required even if ampleyee wee wearing prutective equipment at Uw tune of txpuwur*. 74 frpnaire r--or-- ahall bn maimainrd at inaat 20 year*. Other record heaping requirem--a will fan. erally require record* he kept far longer period*. 74.1 Euiplgycm and fan-- imployeii ahall have reaaoorbba tccaae to racerdr whfafa indfata* the earn ployce'a own eapeeure te atfatw. 7.7 Affaeted empiny-- or thair repraccenatiwa ahall bo given remenable oppartmdty in ebmrva man-ring and review the remit*. a taanaeAt namtrnat a ata^w a. Thorn who during their Du Foot employment here previously worked ia joke with an exposure described in 41.1. b. Those with e^known gfiyitM aabaaloa ex posure prior to or during employment at Du Pua*. At time of employment and periodically thereafter, cam ahouid be tab-- te record any history of oflqdent exposure to ealwnin. 0. Thane whom x-raye show changes of the type which are known te result from aafaeetep exposure. 44 "Guadelinm far Physicians" [me Kef (5)] contains additional information on interpretation end frequency of x-ray* far tabaMua iipmtd eraploy*-- 4 CLOTHS-- AND CHAIMS ROOMS 41 Special clothing, nach a* coverall*, bead covering, glove*, and foot covering akaii be required wiiar* exlioauroe earned ceiling limits of aectiun 3 aud during removal of aabaaloa imulali--. see 4A 42 Change rooms shall be provided far aU employees working in job* in which the l-hour TWA or ceiling limit of aeetien 3 ar* ncceded. 441 Separate clothing leekar* or aimiler arrange- mama are required in them change room* te prevent Quo- tMMMtotMM gjf fflM WUffc 4 Leumfaring of ealmetm r imremimie il elothoa moat be done to prevent die relama uf aabmtue filmi* bate the air. 4.1 MMImI Ex--d----. Praplaranttr*. annual, and termination tecdfaal araminaliiim ahall he modi available to jg | oooMpstiMi lv triwln (m defined in 4.1.1 a and b). Thaaa exaetinatirra ahall in, elude, aa a nieiminv. a PA chan way, nadieal binary, pulflMMfy tMlS 441 Thorn laundering mianmimieri clothing haU bn iafaraaad uf dm need te prevent relearn uf salmons fiber*. 44 Comamineted clothing ahall bn transported in malod imparmaabia nmteinnre lalaaled in ceeurdanm with aaotien 14 Porto** prtmx i* * and OUHA re--team, lauu tttawat Ibnuar Ateb DUP 1120462 DU 055275 23S + Thi* Pag* Ratf March 1941 MEASUREMENT AND CONTROL OR ASBESTOS OUST EXPOSURE S4T Pago 5 10. EPA ASBESTOS EMISSION REGULATIONS 10.1 Application. Kcgulalions also luv Ueu proinuinutnil by the Environmental Protection Agency (EPA). Kef (7). These apply to friable asbestos maleriaia winch rnntuin more than I percent iislieatoe by weight ami which can be crumbled, pulverised, or reduced to powder by hand prrmuirr when airy. Du Pont operation* within thia criterion normally will be limited to rouuvatiuu or demolition involving aaheatua insulation. 10.1.1 Renovation involve* removing or Kripping away aabeatue from pipe*, ducts, boiler*, tanka, reactor*, furnace*, other equipment or atniettiral member*. DomoWton involve* wrecking or removal of a load* mpporting structural member (beam* or load eupporting walla) and any related removing or dripping of friable aabeetoa material*. During damoHon asbestos (ball be removed or dripped prior to the wreciting or taking out of loedwupporting dructurel member*. 10.14 When an individually Hheduled renovation or demolition job amount# to store than tba quantilim listed below, a detailed report ahali be filed with EPA (and in mom caaa* a Male or local agency) prior to removal. Tha removal operation dtall follow the other requirement* of thia atandard, particularly 4A a. 260 linear ft (90 at) of aibaitm remaining pipe insulation b. 160 ft* (IS m*) of *ibccta* containing insulatioa on duct*, boiler*, tanka, or structural number* For piaiiued, but uut individually schedule*!, rcuuvatioos a long.range eetimata of tba total smoimt of nh*dn to be removed or stripped uiuat be mails. Tba period covered must be at lead 30 days, but not mere than a year. EPA inuat be given notion if tha amount* edintmed exceed* 10.14 i or b. 10.14 Whan renovetien *upturn to lorn than 10.14 a or b, nutioa to EPA i* net required, 10.14 When riiualhia* imonwu to lem then 10.1.2 a or b, e limplifiad input dull be filed with the EPA prior to removal. The runanel operation alee dull follow tba other requirement* of thi* auadard, par ticularly 44. 10.14 The requirement* of thi* atasderd should more thaa went the *iklitimul praeautian* specifiad by EPA regarding watting, ooauinariming. dwporc.l, and exhausting. 104 Wuto DfopOioL All xabaate* waste, ineludiag item* such as scrap, amply bag* or clothing to be dis carded, vacuum *y*t*m collection, and other waste* which may crest* airborne <hnt ooitoantration*, shall be col lected and dispeud of in sealed, impermeable bag*, or container*. Caution label* sliail be attached conforming to section 12. 104.1 All disjM/sel sites must liuvr* .(s'cjfic warning signs, Icncing, and dual suppression incUiocW as required by the EPA regulation (40 CFK 61.25). 104 For specific report siul ctMiipiiancr riM|uirnnrnts, refer to dw EPA regulation*, section Ot.lUd of Kef (7). Local or state regulation* alto should be reviewed since they may bs wore restrictive. 11. TRAINING 11.1 In areas where people work witb asbestos, em ployees diould be trained witb the goal of increasing knowledge ofi - Work practiem involving sibestos and the poten tial Cur fiber euiminm b. The physical cheraclerietics of eabestus 0. Pilelie* which may result from exposure to sslwslos fibers inrhiding the role of smoking in lung cueif d. Reasons for, and methods of, caposur* monitoring a. Tbs purpose and nature of engineering and work practice control methods, personal protective equipment and clothing, and personal hygiene L Tbs element* of medical surveillance IX CAUTION SIGNS ANO LABELS 12-1 Caution signs conforming to Figure I dud! bo posted at all approaches to area* where stbeslna coocentralioos may be above permiuiIda exposure Iunit*. They ahali be placed at a sufficient distance to permit an employee to read the signs sad taka uecewary precautions belor* entering the ares. 124 Caution label* ouufunuiug to Figure 2 aluil be used to identify container* of raw materials, scrap, WMtA* |)fu(Jyc| OO0tAifMQ Slil6l(U^ 124 LisesitissaiM labsle are aiggswul for identification of xihailea wntrining end isbedoe free insulation, tee SN218P. 13. REFERENCES 1. Aibedoet An Information Samuroa, National Cancer Imtitma, DUSW Ptddualion No. (N1H) 78-1691 (May W7S). X Selikoff, L. J- Hammond, E. C, Chay, J. P., "Aihene* Exposure, Smoking and Neoplasia,'* JAMA 204i106-U2 (I96S). Portion* pome* red man OSHA regulators. Sana* KtAISOt (lonmrty -Me*. giiiiin:i3 DUP 1120463 DU 055276 I S4T I Pag* MEASUREMENT ANO CONTROL OF ASBESTOS OUST EXPOSURE Thin Pag* Rev March 1981 3. NIOSH Method P&CAM 239: "Aabeate* Fiber* in Air," NIOSH Manual of Analytical Method*, Second Ed, Voi 1, UHEW (NIOSII) Publication No. 77-157-A. 4. "USPHS/N10SH Membrane Filter Method by Evaluating Ada-atia Fiber*," NIOSH Tuclmical Report No. 79-127 (February 1979). 5. Uu Pont Medical Uiviaioo, "Guideline# for Phyaiciana," Section R, Interpretation of X-ray* (March 29, 1979). S. "Induatrial Ventilation - A Manual of Kacuuf mended Practice." 15th Ed. American Confer*no* of Governmental Induatriel HygianiaU (1978). 7. National Emiaaion Standard for Aibetne, Titla 40, Code of Federal Regulation*: Subpert B, 6120 through 61.25 (40 CFK 6120-6125). Originally publiahed in Federal Hcgiatcr, 48292 (October 14, 1975). 8. Occupational Safety and Health Standard*, Part 1910. art-lion* 1910.1001 and 1910.134 (29 CFK 1910). 8. Pebco Technical itullclin ill'll - 4U-7A, "AaLeato* Identification in Old Calail Inaulation" (February 15, 1979). 10. NIOSH/OSHA Reapirator Decision Logic. OSHA loduatriai Hygiene MaouaL Chapter 11L 11. E. Hyatt. "Reapirator Protection Factor*," La* Alamo* Sciantifi* Laboratory Publication LA-6084 (January 1976). 11 P. L. Lowry at ai. "Parforaaanca of Singla-Use Respirator*." American Industrial Hygiene Aaauc J,, 38. p 462 (Septaaabar 1, 1977). r - 2" 11 - !/ Yllow loftin on block background- CAUTION Block letters on yollew keckgroond Letter si sot end stylos to ko ot loost os visible os that listed below: Sons Serif, Gothic, or Block Sons Serif, Gothic* or Block W Gothic 11 11 | " Spocing to bo ot loost egoei to tho height of tho upper of ony two linos ASBESTOS OUST HAZARD void kroothinf dost Woct assigned protoctWo equipment Oo not Foiooio in eree unless yow work requires It Breethlng oskostos dost moy ko heserdeos to yeue hoolth FIGURE 1 - CAUTION SIGH* ASBESTOS OUST + 236 CAUTION Contoios oskostos fiber* Avoid crootiof dost Smoothing oskostos dost mwf cooso sotioos bodily hora Lskol siso end printing to ko toodily vitiklo ond legible* FIGURE 2 - TYPICAL CAUTION LABEL* * AvoiUklo from MAM Displeys, 3301 Moidon Lono, Philedelphie, PA 1914B Figures 1 and 2 moot OSHA roquifOMOnts* Soctioo 1910*1001 (fmotly >93e)* DUP 1120464 055277