Designation:D4512−03(Reapproved2018)´1StandardTestMethodforVibratedApparentPackingDensityofFineCatalystandCatalystCarrierParticlesandPowder1ThisstandardisissuedunderthefixeddesignationD4512;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—Section6.5wasupdatededitoriallyinMay2018.1.Scope1.1Thistestmethodcoversthedeterminationoftheappar-entpackingdensityoffinecatalystandcatalystcarrierpowderssmallerthan0.8mmindiameter.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D3766TerminologyRelatingtoCatalystsandCatalysisE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE456TerminologyRelatingtoQualityandStatisticsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.Terminology3.1Definitions—SeeTerminologyD3766.4.SignificanceandUse4.1Thistestmethodisformeasuringtheapparentpackingdensityofcatalystorcatalystcarrierpowdersthataresmallerthan0.8mmindiameter.5.Apparatus5.1GlassCylinders,capacity100mL,feedandmeasuring.5.2Vibrator,3conventionalhand-held,withhardrubberormetalimpactor.5.3FeedFunnel,plastic,glass,ormetalasshowninFig.1.5.4RingStand,vibratorholderandclampsasshowninFigs.2and3.5.5Desiccator...
