Designation:D2947/D2947M−88(Reapproved2011)´1StandardTestMethodforScreenAnalysisofAsbestosFibers1ThisstandardisissuedunderthefixeddesignationD2947/D2947M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—UnitsinformationwaseditoriallycorrectedinFebruary2012.1.Scope1.1Thistestmethodcoversadryscreenanalysisforasbestosfiberbymeansofamechanicalsieveshaker.1.2ThistestmethodislimitedinitsapplicationtoGroup4andshorterchrysotileasbestosfibersamples2asdefinedinTestMethodD3639.However,someshortamphiboleasbestosfibersmaybesuitableforevaluationbythismethod.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Warning—Breathingofasbestosdustishazardous.Asbestosandasbestosproductspresentdemonstratedhealthrisksforusersandforthosewithwhomtheycomeintocontact.Inadditiontootherprecautions,whenworkingwithasbestos-cementproducts,minimizethedustthatresults.Forinforma-tiononthesafeuseofchrysoltileasbestos,referto“SafeUseofChrysotileAsbestos:AManualonPreventiveandControlMeasures.”31.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecificsafetyhazard,see.2.ReferencedDocuments2.1ASTMStandards:4D2590TestMethodforSamplingChrysotileAsbestosD2946TerminologyforAsbestosandAsbestos–CementProductsD3639TestMethodforClassificationofAsbestosbyQue-becStandardTestD3879TestMethodforSamplingAmphiboleAsbestos(Withdrawn2009)5E11SpecificationforWovenWireTestSieveClothandTestSievesE177...
