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cations to,lob placement. include a history of chromic shun should be taken during one workshift,and the highest of all dLlcm,concurrent dermatitis,or mild non-hemolyttc anemia ineauMmmuft takan is an estimate of the worker s exposure. (e.g , mild iron-deficiency anemia) If the periods of maximum exposure are not clearly defined, ' Periodic medical scorning and/or biologic monitoring a stlusucal procedure which can be used as a peak exposure Occupational health nuerviewa and physical examinations detection strategy,is given in the 0ccwp0a7aaal F_yaosune Sam- should be perfornxd irregular Wtea'vals.Additiaial stamina- Phng Srrwev Manual tions may be necrasary should a worker report symptoms that • Method may be attributed to datposure to benzene.The interviews,ex- Sampling and analysis amiiianoiis.and apptflpriue medical a::reening and/or biologic zone Ys �' Performed by collecting bem- mamitorimgtests should be directed at an excessive vapors with charcoal woes(allowed by desorption wadi decease or adverse trend m the dd=fywS carbon disulfide and analysis by gas chromatography.Dism- mtt�ry►and Physiolqpc func- trading devices calibrated to measure benzene may also be used U011 of the skin, laver. and respiratory, nervous, and hems- if avaHa*_A dd:miled sampling and analytical method for ben- topoicuc (blood-cell-forming) systeM as compared to the zone may be favid in the NIOSH Mmival ofArtahn=jMeds a& baseline staruts of the Individual worker or to expected values (medwd number 1500) ' for a suitable reference population.The following on should be used ardm' erPread according toStandardized procedures PERSONAL PROTECTIVE EQUIPMENT acrd evaluation cnmu n cormneaded by NIOSH sad the ATS: ' sumdardized queaaonnam and tests of lung ftmcnani. Cbemrcal F Metive clothing(CFC)should be selected afar ' Meftal recomWended at the time adf job tracts- utilizing amiable performance data, consulting with the fer or tarminstim rnuadcUirer,and then evaluating the clothing under a=wl use views.oda physical moa.and oa�atiortal ivamory imp coadmona. laboraaoryt�Which we:econdtresadat the ti>�af Should be provided with and required to use CPC, should be repeated at the tune oflob tnuukr or a mirianon. g°Ma'and other appropriate protective clothriig nieax:lary to ' Any a mgm tit the"Mimes ha t scams should be compared prevent�n comw with benzene m those ezpd=W fur a seizable refiete,oe pcPi;abay.Be= SANITATION occupational exposemre to benzene may cause diseases of Pro1mpd tttd»ction-latency,the need for medical surveillance Clothing which is oontaminated with benzene should be m- may extend well beyond tertmauton of emplayment- mored immediately and placed in sealed eanminers for storage Sentinel bea kb events ,until it can be discarded or until provision is made for the M I.Acute SHE's tnclu&-.Acute myeloid ieubemia and eoritect removal of benzene fn m the clothing If the clothing ss to be and/or allergic dermatitis, laundered or cleaned. the person performing the operation 2.DehMxt-onset SHE'S mciude:Del cmw in the ratmber(neu- should be informed of benzene's hazardous properties.Reus- trolienia)or absence( 1ocY )of cermW white blood able clothing and a}eupme,t sbould be cbxixd for residual cells in the penpimW cpatadAbw and/or m the bone marrow I M 1erntaation before reuse or storage (aplastic anemia)and cancer of the red blood cells(erydiro- leukenmma). A change room with showers,washing facilities.and lockets ' that Pmmt separation of street and worst clothes should be MONITORING AND MEASUREMENT provided. PROCEDURES Workers should be required to shower foiiowmg a vrorkshift ' and P=te Pig on sneer clothes.Clean work clothes diould TWA cqxmmm evsalaotion be proves daily Measurements to decamine worker expomm to benzene Skm that becorircs should be talent so that dee TWA exposmu band an a single with benzene should be em ire workduft sum*or an appropriate member ofcomsecu- PAY vr=hW with amp and water. trve samples eolleand dtaaueg the,,tire workshiR.Under ter- Worioers who handle be:maie should wadi these faces,bands. tran short-t mterval nditimaybe to 30 minbe to cone= several And forearms thoroughly with soap and water before eateating.saneples mes each)to decor- amokimag, or using toilet faeiimm mine the MOP expasu Irid.Aires should betaken in the wvric s bmaqung zone,(air diat most a wly nepides M The atoms.moo°•Wig.or conumvuw of food that Wbaied by the worker). or bars Ugm the mop or application of cometim die celb"ootceentratioo a+dulltioa storage or use of smoking neaaite uls.or dee storage or nae or M i mdeumni a wrorkeregxMile should be takeii F=hM for dwwcgg should be prohibited is work zreas. during Pci1Odsof maximum COMMON OPERATIONS AND CONTROLS of bcmmw—Each manuiestient to determine the NIOSH REL (twig datposure)in the%mimes breadimig zone(air that mast Cotmnon opeeabOns in which,itpasure to benaene miry ad:cur r"dY sem that Whaled by dee worker)sbMW consul and.coots/methods which may be effective m each pee an of a 15-minae sante, A minrmim of three maacr listed in Zltble 2. 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