Designation:D7041−16StandardTestMethodforDeterminationofTotalSulfurinLiquidHydrocarbonsandHydrocarbon-OxygenateBlendsbyGasChromatographywithFlamePhotometricDetection1ThisstandardisissuedunderthefixeddesignationD7041;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationoftotalsulfurinliquidhydrocarbonswithafinalboilingpointlessthan450°Cbygaschromatographyusingaflamephotometricdetector.1.2Thistestmethodisapplicablefortotalsulfurlevelsfrom0.5mgS/kgto100mgS/kg.NOTE1—Thepooledlimitofquantification(PLOQ)derivedfromthe2002interlaboratorycooperativetestprogramwasdeterminedtobe1mgS⁄kg.NOTE2—Samplescanalsobetestedatothertotalsulfurlevels,buttheprecisionstatementsmaynotapply.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.ForspecifichazardstatementsseeSection7.2.ReferencedDocuments2.1ASTMStandards:2D1298TestMethodforDensity,RelativeDensity,orAPIGravityofCrudePetroleumandLiquidPetroleumProd-uctsbyHydrometerMethodD4052TestMethodforDensity,RelativeDensity,andAPIGravityofLiquidsbyDigitalDensityMeterD4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4177PracticeforAutomaticSamplingofPetroleumandPetroleumProductsE840PracticeforUsingFlamePhotometricDetectorsinGasChromatography3.SummaryofTestMethod3.1Thesampleisanalyzedbygaschromatographywithaflamephotometricdetector.Afixedamountofsampleisinjectedintothegaschromatographwhereitisvaporized.Theaircarrierstreamcarriesthevaporizedsampleintoahightemperaturezone(>900°C)wherethecompoundspresentinthesampleareoxidized.Sulfurcompoundsare...
