Designation:D2854−09(Reapproved2019)StandardTestMethodforApparentDensityofActivatedCarbon1ThisstandardisissuedunderthefixeddesignationD2854;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationoftheappar-entdensityofgranularactivatedcarbon.Forpurposesofthistestmethod,granularactivatedcarbonisdefinedasaminimumof90%beinglargerthan80mesh.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D2862TestMethodforParticleSizeDistributionofGranu-larActivatedCarbonD2867TestMethodsforMoistureinActivatedCarbonE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE300PracticeforSamplingIndustrialChemicalsE542PracticeforCalibrationofLaboratoryVolumetricApparatus3.SummaryofTestMethod3.1Apparentdensity(bulkdensity)isdeterminedonagranularsamplebymeasuringthevolumepackedbyafreefallfromavibratingfeederintoanappropriatelysizedgraduatedcylinderanddeterminingthemassoftheknownvolume.Othermethodsfordeterminingapparentdensityofgranularorpowderedmaterialsexist.Thesemayinvolvevibrationortappingofthereceivingvesseleitherwhileitisbeingfilledorafterw...
