Designation:D8247−19StandardTestMethodforDeterminationofTotalFluorineandTotalChlorineinCoalbyOxidativePyrohydrolyticCombustionFollowedbyIonChromatographyDetection1ThisstandardisissuedunderthefixeddesignationD8247;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationoftotalfluorineandtotalchlorineincoal.Samplescontaining200mg⁄kgto4000mg⁄kgofchlorineand20mg⁄kgto100mg⁄kgoffluorinecanbeanalyzeddirectly.1.1.1Itispossibleforthismethodtobeusedforthedeterminationoftotalbromineincoal.Noprecisionandbiasstatementwillbegivenforthedeterminationoftotalbromine.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.3Indeterminingtheconformationofthetestresultsusingthismethodtoapplicablespecifications,resultsshallberoundedoffinaccordancewiththerounding-offmethodfromPracticeE29.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D121TerminologyofCoalandCokeD1193SpecificationforReagentWaterD2013PracticeforPreparingCoalSamplesforAnalysisD3173TestMethodforMoistureintheAnalysisSampleofCoalandCokeD3180PracticeforCalculatingCoalandCokeAnalysesfromAs-DeterminedtoDifferentBasesD7582TestMethodsforProximateAnalysisofCoalandCoke...
