Designation:D6334−12StandardTestMethodforSulfurinGasolinebyWavelengthDispersiveX-RayFluorescence1ThisstandardisissuedunderthefixeddesignationD6334;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthequantitativedeterminationoftotalsulfuringasolineandgasoline-oxygenateblends.ThePooledLimitofQuantitation(PLOQ)wasdeterminedtobe15mg/kg.Therefore,thepracticalrangeforthistestmethodisfrom15to940mg/kg.NOTE1—Thisconcentrationrangeisbasedonthatusedintheinterlaboratoryroundrobin,whichshowsthattherangeofsulfurintheroundrobinsampleswasfrom1.5to940mg/kg;however,below15mg/kg,thereproducibilityapproaches100%oftheconcentration.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationpriortouse.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thepreferredunitsaremg/kgsulfur.2.ReferencedDocuments2.1ASTMStandards:2D2622TestMethodforSulfurinPetroleumProductsbyWavelengthDispersiveX-rayFluorescenceSpectrometryD3210TestMethodforComparingColorsofFilmsfromWater-EmulsionFloorPolishesD4045TestMethodforSulfurinPetroleumProductsbyHydrogenolysisandRateometricColorimetryD4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4177PracticeforAutomaticSamplingofPetroleumandPetroleumProductsD4294TestMethodforSulfurinPetroleumandPetroleumProductsbyEnergyDispersiveX-rayFluorescenceSpec-trometryD5453TestMethodforDeterminationofTotalSulfurinLightHydrocarbons,SparkIgnitionEngineFuel,DieselEngineFuel,andEngineOilbyUltravioletFluorescenceD5842PracticeforSamplingandHandlingofFuelsforVolatilityMeasurementD5854PracticeforMixingandHandlingofLiquidSamplesofPetroleumandPetroleumProductsD6299P...