Designation:D4180−13StandardTestMethodforVibratoryPackingDensityofFormedCatalystParticlesandCatalystCarriers1ThisstandardisissuedunderthefixeddesignationD4180;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthevibra-torypackingdensityofformedcatalystandcatalystcarriers.Forthepurposeofthistest,catalystparticlesaredefinedasextrudates,spheres,orformedpelletsof0.8to4.8-mm(1⁄32to3⁄16-in.)nominaldiameter.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D3766TerminologyRelatingtoCatalystsandCatalysisE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE456TerminologyRelatingtoQualityandStatisticsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethodE1272SpecificationforLaboratoryGlassGraduatedCylin-ders3.Terminology3.1Definitions—SeeTerminologyD3766.4.SummaryofTestMethod4.1Apreconditionedsampleofformedcatalystorcatalystcarrierisvibratedinacylinder.Thevibratorypackingdensityisdeterminedfromaknownmassandvibratedvolume.5.SignificanceandUse5.1Thistestmethodistobeusedformeasuringthevibratorypackingdensityofformedparticlesthatwillnotbreakupduringsampling,filling,orvibratingofthemeasuringcylinderundertestconditions.6.Apparatus6.1GlassCylinders,capacity250mL,feedandmeasuring,conformingtoSpecificationE1272,ClassA.6.2Vibrator,3conventionalhandheld,withhardrubberormetalimpactor.6.3FeedFunnel,plastic,glass,ormetalasshowninFig.1.6.4RingStand,VibratorHolderandC...
