Designation:D4746−20StandardTestMethodforDeterminationofQuinolineInsolubles(QI)inTarandPitchbyPressureFiltration1ThisstandardisissuedunderthefixeddesignationD4746;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofthequinoline-insolublematter(QI)intarandpitchbypressurefiltrationandgivesresultscomparabletothoseobtainedbyTestMethodD2318.1.2Sincethistestmethodisempirical,strictadherencetoalldetailsoftheprocedureisnecessary.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsaregiveninSection7,6.2,and6.3.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D70TestMethodforDensityofSemi-SolidAsphaltBinder(PycnometerMethod)D95TestMethodforWaterinPetroleumProductsandBituminousMaterialsbyDistillationD329SpecificationforAcetoneD850TestMethodforDistillationofIndustrialAromaticHydrocarbonsandRelatedMaterialsD2318TestMethodforQuinoline-Insoluble(QI)ContentofTarandPitchD4296PracticeforSamplingPitchE1SpecificationforASTMLiquid-in-GlassThermometersE11SpecificationforWovenWireTestSieveClothandTestSieves3.SummaryofTestMethod3.1Thesampleisdigestedinhotquinolineandfilt...
