Designation:D3174−12(Reapproved2018)StandardTestMethodforAshintheAnalysisSampleofCoalandCokefromCoal1ThisstandardisissuedunderthefixeddesignationD3174;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationoftheinor-ganicresidueasashintheanalysissampleofcoalorcokeaspreparedinaccordancewithPracticeD2013orPracticeD346.Theresultsobtainedcanbeappliedastheashintheproximateanalysis,PracticeD3172,andintheultimateanalysis,PracticeD3176.Forthedeterminationoftheconstituentsinash,referenceismadetoTestMethodsD3682,D4326,andD6349.TestMethodsD6357shouldbeusedtoprepareashtobeusedfortraceelementanalysis.SeeTerminologyD121fordefini-tionofash.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D121TerminologyofCoalandCokeD346PracticeforCollectionandPreparationofCokeSamplesforLaboratoryAnalysisD388ClassificationofCoalsbyRankD1757TestMethodforSulfateSulfurinAshfromCoalandCoke(Withdrawn2009)3D2013PracticeforPreparingCoalSamplesforAnalysisD2795TestMethodsforAnalysisofCoalandCokeAsh(Withdrawn2001)3D3172Pra...
