Designation:D7280−20StandardTestMethodforQuinoline-Insoluble(QI)ContentofTarandPitchbyStainlessSteelCrucibleFiltration1ThisstandardisissuedunderthefixeddesignationD7280;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofthequinoline-insolublematter(QI)intarandpitchusingastainlesssteelfilteringcrucibleandafiltrationmembrane.1.2Thistestmethodwasevaluatedinroundrobintestingusingmaterialsintherangeofzerototwentyquinolineinsolubleweightpercent(wt%).1.3Sincethistestmethodisempirical,strictadherencetoalldetailsoftheprocedureisnecessary.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D71TestMethodforRelativeDensityofSolidPitchandAsphalt(DisplacementMethod)D95TestMethodforWaterinPetroleumProductsandBituminousMaterialsbyDistillationD329SpecificationforAcetoneD362SpecificationforIndustrialGradeToluene(Withdrawn1989)3D850TestMethodforDistillationofIndustrialAromaticHydrocarbonsandRelatedMaterialsD2318TestMethodforQuinoline-Insoluble(QI)ContentofTarandPitchD4296PracticeforSamplingPitchE1SpecificationforASTMLiquid-in-GlassThermometersE11SpecificationforWovenWireTestSieveClothandTestSievesE691Practicef...
