Designation:D3686−20StandardPracticeforSamplingAtmospherestoCollectOrganicCompoundVapors(ActivatedCharcoalTubeAdsorptionMethod)1ThisstandardisissuedunderthefixeddesignationD3686;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversamethodforthesamplingofatmospherestodeterminethepresenceofcertainorganicvaporsbymeansofadsorptiononactivatedcharcoalusingacharcoaltubeandasmallportablesamplingpumpwornbyaworker.AlistofsomeoftheorganicchemicalvaporsthatcanbesampledbythispracticeisprovidedinAnnexA1.Thislistispresentedasaninformationguideandshouldnotbeconsideredasabsoluteorcomplete.1.2Thispracticedoesnotcoveranymethodofsamplingthatrequiresspecialimpregnationofactivatedcharcoalorotheradsorptionmedia.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Aspecificsafetyprecautionisgivenin9.4.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1356TerminologyRelatingtoSamplingandAnalysisofAtmospheresD3687TestMethodforAnalysisofOrganicCompoundVaporsCollectedbytheActivatedCharcoalTubeAdsorp-tionMethodD4840GuideforSampleChain-of-CustodyProceduresD5337PracticeforFlowRateAdjustmentofPersonalSam-plingPumps2.2NIOSHStandards:CDC-99-74-45Docume...
