Designation:D7828−12StandardTestMethodforDeterminationofResidueCompositioninLiquefiedPetroleumGas(LPG)UsingAutomatedThermalDesorption/GasChromatography(ATD/GC)1ThisstandardisissuedunderthefixeddesignationD7828;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThistestmethodcoversthedeterminationofresidueinLPGbyautomatedthermaldesorption/gaschromatography(ATD/GC)usingflameionizationdetection(FID).1.2Thequantitationofresiduecoversacomponentboilingpointrangefrom69°Cto522°C,equivalenttotheboilingpointsofC6throughC40n-paraffins.1.2.1TheboilingrangecoverspossibleLPGcontaminantssuchasgasoline,dieselfuel,phthalatesandcompressoroil.Qualitativeinformationonthenatureoftheresiduecanbeobtainedfromthistestmethod.1.2.2MaterialsinsolubleinLPGandcomponentswhichdonotelutefromthegaschromatographorwhichhavenoresponseinaflameionizationdetectorarenotdetermined.1.2.3Thereportinglimit(orlimitofquantitation)fortotalresidueis6.7µg/g.1.2.4Thedynamicrangeofresiduequantitationis6.7to3300µg/g.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1265PracticeforSamplingLiquefiedPetroleum(LP)Gases,ManualMethodD1835SpecificationforLiquefiedPetroleum(LP)GasesD2158TestMethodforResiduesinLiquefiedPetroleum(LP)GasesD3700PracticeforObtainingLPGSamplesUsingaFloat-ingPistonCylinderD6299PracticeforApplyingStatisticalQualityAssuranceandControlChartingTechniquestoEvaluateAnalyticalMeasurementSystemPerformanceE355PracticeforGasChromatographyTermsandRelation-ships...
