Designation:D5644−01(Reapproved2013)StandardTestMethodsforRubberCompoundingMaterials—DeterminationofParticleSizeDistributionofRecycledVulcanizateParticulateRubber1ThisstandardisissuedunderthefixeddesignationD5644;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodsdescribetheproceduresfordeter-miningaverageparticlesizedistributionofrecycledvulcani-zateparticulate.1.2MethodAdescribestheRo-tapsievetestmethodfor60meshorcoarserparticles.1.3MethodBdescribestheultrasonictechniquecombinedwithopticalmicroscopeespeciallysuitablefor80meshorfinerparticles.ThisprocedureisbasedonTestMethodD3849.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D297TestMethodsforRubberProducts—ChemicalAnaly-sisD1416TestMethodsforRubberfromSyntheticSources—ChemicalAnalysis(Withdrawn1996)3D1566TerminologyRelatingtoRubberD3182PracticeforRubber—Materials,Equipment,andPro-ceduresforMixingStandardCompoundsandPreparingStandardVulcanizedSheetsD3191TestMethodsforCarbonBlackinSBR(Styrene-ButadieneRubber)—RecipeandEvaluationProceduresD3192TestMethodsforCarbonBlackEvaluationinNR(NaturalRubber)D3849TestMethodforCarbonBlack—MorphologicalCharacterizationofCarbonBlackUsingElectronMicros-copyD5603ClassificationforRubberCompoundingMaterials—RecycledVulcanizateParticulateRubberE11SpecificationforWovenWireTestSieveClothandTestSievesE105PracticeforProbabilitySamplingofMaterials3.Terminology3.1Definitions:3.1.1parentcompound,n—originalcompoundusedintheproduct.3.1.2recycledvulcanizaterubber,n—vulca...
