Designation:D6376−10(Reapproved2017)´1StandardTestMethodforDeterminationofTraceMetalsinPetroleumCokebyWavelengthDispersiveX-rayFluorescenceSpectroscopy1ThisstandardisissuedunderthefixeddesignationD6376;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—UnitsformattingwascorrectededitoriallyinFebruary2017.1.Scope1.1ThistestmethodcoverstheX-rayfluorescencespectro-metricdeterminationoftotalsulfurandtracemetalsinsamplesofraworcalcinedpetroleumcoke.ElementsdeterminedusingthistestmethodarelistedinTable1.1.2Detectionlimits,sensitivity,andoptimalelementrangeswillvarywithmatrices,spectrometertype,analyzingcrystal,andotherinstrumentconditionsandparameters.1.3Allanalytesaredeterminedastheelementandreportedassuch.TheseincludeallelementslistedinTable1.Thistestmethodmaybeapplicabletoadditionalelementsorconcen-trationrangesifsufficientstandardsareavailabletoproducepropercalibrationequations.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D346PracticeforCollectionandPreparationofCokeSamplesforLaboratoryAnalysisD1552TestMethodforSulfurinPetroleumProductsbyHighTemperatureCombustionandInfrared(IR)Detec-tionorThermalConductivityDetection(TCD)D4057PracticeforManualSamplingofPetroleumandPetroleumProductsD5056TestMethodforTraceMetalsinPetroleumCokebyAtomicAbsorptionD5600TestMethodforTraceMetalsinPetroleumCokebyInductivelyCoupledPlasmaAtomicEmissionSpectrom-etry(ICP-AES)D6969PracticeforPreparationofCalcinedPetroleumCokeSamplesforAnalysisD6970P...