Designation:D6920−13StandardTestMethodforTotalSulfurinNaphthas,Distillates,ReformulatedGasolines,Diesels,Biodiesels,andMotorFuelsbyOxidativeCombustionandElectrochemicalDetection1ThisstandardisissuedunderthefixeddesignationD6920;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationoftotalsulfurinliquidhydrocarbons,boilingintherangefromapproxi-mately25to400°C,withviscositiesbetweenapproximately0.2and10cSt(mm/S)atroomtemperature.Thistestmethodisapplicabletonaphthas,distillates,andmotorfuelssuchasgasolines,reformulatedgasolines,gasohols,dieselsandbio-dieselscontainingapproximately1to100mg/kgtotalsulfuringasolinetypeproducts,andapproximately1to40mg/kgsulfurindieseltypeproducts.1.2Thedetectorresponseforthistechniquewithinthescopeofthistestmethodislinearwithsulfurconcentration.1.3Basedoninterlaboratorystudy,thepooledlimitofquantitationofthistestmethodis3mg/kgforgasolineand<0.5mg/kgfordieselsamples.1.4ThistestmethodmeetstheU.S.EPArequirementsformeasuringsulfurinultralowsulfurdieselfuelsbythedesignatedTestMethodD6428,aspublishedintheU.S.FederalRegister§80.520(a)(1).1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSections8and9.2.ReferencedDocuments2.1ASTMStandards:2D4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4177PracticeforAutomaticSamplingofPetroleumandPetroleumProductsD6299PracticeforApplyingStatisticalQualityAssuranceandControlChartingTechniquestoEvaluateAnalyticalMeasurementSyste...
