Designation:D6966−18StandardPracticeforCollectionofSettledDustSamplesUsingWipeSamplingMethodsforSubsequentDeterminationofMetals1ThisstandardisissuedunderthefixeddesignationD6966;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversthecollectionofsettleddustonsurfacesusingthewipesamplingmethod.Thesesamplesarecollectedinamannerthatwillpermitsubsequentextractionanddeterminationoftargetmetalsinthewipesusinglabora-toryanalysistechniquessuchasatomicspectrometry.1.2Thispracticedoesnotaddressthesamplingdesigncriteria(thatis,samplingplanwhichincludesthenumberandlocationofsamples)thatareusedforclearance,hazardevaluation,riskassessment,andotherpurposes.Toprovideforvalidconclusions,sufficientnumbersofsamplesshouldbeobtainedasdirectedbyasamplingplan,forexample,inaccordancewithGuideD7659.1.3Thispracticecontainsnotesthatareexplanatoryandarenotpartofthemandatoryrequirementsofthispractice.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1356TerminologyRelatingtoSamplingandAnalysisofAtmospheresD4840GuideforSampleChain-of-CustodyProceduresD7144PracticeforCollectionofSurfaceDustbyMicro-vacuumSamplingforSubsequentMetalsDeterminati...
