Designation:D4312−20StandardTestMethodforToluene-Insoluble(TI)ContentofTarandPitch(ShortMethod)1ThisstandardisissuedunderthefixeddesignationD4312;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationoftoluene-insolublematter(TI)intarandpitch.1.2Sincethistestmethodisempirical,strictadherencetoalldetailsoftheprocedureisnecessary.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.1.3.1Exception—Othernon-SIunitsareprovidedforinfor-mationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninSection7.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D95TestMethodforWaterinPetroleumProductsandBituminousMaterialsbyDistillationD329SpecificationforAcetoneD362SpecificationforIndustrialGradeToluene(Withdrawn1989)3D850TestMethodforDistillationofIndustrialAromaticHydrocarbonsandRelatedMaterialsD4072TestMethodforToluene-Insoluble(TI)ContentofTarandPitchD4296PracticeforSamplingPitchE11SpecificationforWovenWireTestSieveClothandTestSieves3.SummaryofTestMethod3.1Thesampleisdigested,thenextractedwithhottolueneinanalundumthimble.Theinsolublematterisdriedandweighed.4.SignificanceandUse4.1Thistestmethodisusefulforevaluatingandcharacter-izingtarsandpitchesandisoneelementinestablishingtheuniformityofshipmentorsourcesofsupply.5.Appa...
