Designation:D2985/D2985M−92(Reapproved2019)StandardTestMethodforColorofAsbestos1ThisstandardisissuedunderthefixeddesignationD2985/D2985M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofcolor,whiteness,andyellownessofasbestosbymeansofaphoto-electricreflectometer.1.2Thetestmethodisapplicabletoallgradesandvarietiesofhomogeneousmilledasbestos.1.3Thistestmethodmaybeappliedtosamplesthatarenotdryorhomogeneous,orthatcontainimpuritiesoradulterants.However,insuchcases,resultsmaynotbecomparablewiththoseobtainedoncleandrysamples.1.4Toobtainsimilarresultsfromspectrophotometers,seeTestMethodE308.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.6Warning—Breathingofasbestosdustishazardous.Asbestosandasbestosproductspresentdemonstratedhealthrisksforusersandforthosewithwhomtheycomeintocontact.Inadditiontootherprecautions,whenworkingwithasbestos-cementproducts,minimizethedustthatresults.Forinforma-tiononthesafeuseofchrysotileasbestos,referto“SafeUseofChrysotile:AManualofPreventiveandControlMeasures.”21.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.8Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrier...
