Designation:D7845−13StandardTestMethodforDeterminationofChemicalSpeciesinMarineFuelOilbyMultidimensionalGasChromatography–MassSpectrometry1ThisstandardisissuedunderthefixeddesignationD7845;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthequantitativedeterminationofavarietyofchemicalspeciesinmarinefueloil(bunkerfueloil)bygaschromatography–massspectrometry.Byusingthesameconditionsandbyselectingrequiredmassspectralselectedions,thetestmethodmaybeusedforthedetermina-tionofotherspeciesthanthoseforwhichprecisionstatementsandlimitsofdetectionhavebeenestablished.1.2AnexamplelistofchemicalspeciesforwhichalimitofquantificationhasbeendeterminedbymeansofthistestmethodisgiveninTable1.1.3Otherrefineryhydrocarbonfractionsandtheirmixturesmaybetestedusingthesametestmethodconditions.However,theprecisionofthistestmethodreflectsthecompoundsinTable1.1.4Resultsarereportedtothenearest1.0mg/kg.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D4307PracticeforPreparationofLiquidBlendsforUseasAnalyticalStandardsD6299PracticeforApplyingStatisticalQualityAssuranceandControlChartingTechniquestoEvaluateAnalyticalMeasurementSystemPerformance3.Terminology3.1Definitions:3.1.1directoropensplitinterface,n—anyGC/MSinterfaceusedtomaintainatmosphericpressureatcapillarycolumnoutlet.3.1.2reconstructedionchromatogram(RIC),n—alimitedmasschromatogramrepresentingtheintensitiesofionmassspectrometriccurrentsforonlythoseionshavingparticular...
