Designation:D3907/D3907M−13StandardTestMethodforTestingFluidCatalyticCracking(FCC)CatalystsbyMicroactivityTest1ThisstandardisissuedunderthefixeddesignationD3907/D3907M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversdeterminingtheactivityofequilibriumorlaboratory-deactivatedfluidcatalyticcracking(FCC)catalysts,orboth.Thisisevaluatedonthebasisofweightpercentconversionofgasoilinamicroactivityunit.TheselectivityofFCCcatalystscanbedeterminedusingTestMethodD5154.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D2887TestMethodforBoilingRangeDistributionofPe-troleumFractionsbyGasChromatographyD5154TestMethodforDeterminingActivityandSelectivityofFluidCatalyticCracking(FCC)CatalystsbyMicroac-tivityTestE105PracticeforProbabilitySamplingofMaterialsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE456TerminologyRelatingtoQualityandStatisticsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1ASTMconsensusmeanconversion—eachreferencecatalysthasaconsensusmeanconversionvalueassignedtoitbyCommitteeD32(see11.2).3.1.2ASTMreferencecatalysts—asetofequilibriumfluidcrackingcatalystswithconversionswithintheusefulrangeofthistestmethodisusedtoimprovetherepro...
