Designation:D7348−21StandardTestMethodsforLossonIgnition(LOI)ofSolidCombustionResidues1ThisstandardisissuedunderthefixeddesignationD7348;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthedeterminationofthemasslossfromsolidcombustionresiduesuponheatinginanairoroxygenatmospheretoaprescribedtemperature.Themasslosscanbeduetothelossofmoisture,carbon,sulfur,andsoforth,fromthedecompositionorcombustionoftheresidue.1.2Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D121TerminologyofCoalandCokeD3174TestMethodforAshintheAnalysisSampleofCoalandCokefromCoalD3180PracticeforCalculatingCoalandCokeAnalysesfromAs-DeterminedtoDifferentBasesD3682TestMethodforMajorandMinorElementsinCombustionResiduesfromCoalUtilizationProcessesD3683TestMethodforTraceElementsinCoalandCokeAshbyAtomicAbsorption(Withdrawn2018)3D4326TestMethodforMajorandMinorElementsinCoalAshByX-RayFluorescenceD6316TestMethodforDeterminationofTotal,CombustibleandCarbonateCarboninSolidResiduesfromCoalandCokeD6349TestMethodforDeterminationofMajorandMinorElementsinCoal,Coke,andSolidResiduesfromCom-bustionofCoalandC...
