Designation:D2638−10(Reapproved2015)´1StandardTestMethodforRealDensityofCalcinedPetroleumCokebyHeliumPycnometer1ThisstandardisissuedunderthefixeddesignationD2638;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—EditorialchangesweremadethroughoutinDecember2015.1.Scope1.1Thistestmethodcoversthedeterminationoftherealdensity(RD)ofcalcinedpetroleumcoke.Realdensity,bydefinitionisobtainedwhentheparticlesizeofthespecimenissmallerthan75µm(U.S.No.200Sieve).1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D346PracticeforCollectionandPreparationofCokeSamplesforLaboratoryAnalysisD2013PracticeforPreparingCoalSamplesforAnalysisD2234/D2234MPracticeforCollectionofaGrossSampleofCoalD4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4292TestMethodforDeterminationofVibratedBulkDensityofCalcinedPetroleumCokeD4930TestMethodforDustControlMaterialonCalcinedPetroleumCokeE11SpecificationforWovenWireTestSieveClothandTestSievesE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.Terminology3.1Definitions:3.1.1calcinedpetroleumcoke,n—petroleumcokethathasbeenthermallytreatedtodriveoffthevolatilematterandtodevelopcrystallinestructure.3.1.2petroleumcoke,n—asolid,carbonaceousresidueproducedbythermaldecompositionofheavypetroleumfrac-tionsorcrackedstocks,orboth.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1bulkdensity,n—themassoftheparticlesdividedbythevolumetheyoccupywhichincludesthespacebetweentheparti...
