Designation:D843−19StandardSpecificationforNitrationGradeXylene1ThisstandardisissuedunderthefixeddesignationD843;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversnitrationgradexylene.1.2Thefollowingappliestoallspecifiedlimitsinthisstandard:forpurposesofdeterminingconformancewiththisstandard,anobservedvalueoracalculatedvalueshallberoundoff“tothenearestunit”inthelastright-handdigitusedinexpressingthespecificationlimit,inaccordancewiththeround-offmethodofPracticeE29.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.4ConsultOSHAregulations,supplier’sSafetyDataSheets,andlocalregulationsforallmaterialsusedinthisspecification.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D848TestMethodforAcidWashColorofIndustrialAro-maticHydrocarbonsD849TestMethodforCopperStripCorrosionbyIndustrialAromaticHydrocarbonsD850TestMethodforDistillationofIndustrialAromaticHydrocarbonsandRelatedMaterialsD3437PracticeforSamplingandHandlingLiquidCyclicProductsD5386TestMethodforColorofLiquidsUsingTristimulusColorimetryD7504TestMethodforTraceImpuritiesinMonocyclicAromaticHydrocarbonsbyGasChromatographyandEffectiveCarbonNumberD8005TestMethodforColorofClearLiquids(Platinum-CobaltScale)E29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecificationsE2680TestMethodforAppearanceofClear,TransparentLiquids(VisualInspectionProcedure)2.2OtherDocument:OSHARegulations,29CFRparagraphs1910.1000and1910.120033.Properties3.1Ni...
