Designation:D5817−20StandardPracticeforCarbonBlack,Pelleted—Reduction,Blending,andDryingofGrossSamplesforTesting1ThisstandardisissuedunderthefixeddesignationD5817;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribestheprocedureforblendingofpelletedcarbonblack,theprocedureforthereductionofgrosssamplesofpelletedcarbonblacktotheappropriatesizefortestingandthepreparationofthesamplefortesting.Thesetechniquesareintendedtominimizevariationsinmeasuredcharacteristicsbetweentestsamples.StandardterminologyrelatingtocarbonblacksamplesisfoundinTerminologyD3053.TheclassificationsystemforcarbonblacksusedinrubberproductscanbefoundinClassificationSystemD1765.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D412TestMethodsforVulcanizedRubberandThermoplas-ticElastomers—TensionD1506TestMethodsforCarbonBlack—AshContentD1508TestMethodforCarbonBlack,PelletedFinesandAttritionD1509TestMethodsforCarbonBlack—HeatingLossD1510TestMethodforCarbonBlack—IodineAdsorptionNumberD1511TestMethodforCarbonBlack—PelletSizeDistri-butionD1512TestMethodsforCarbonBlack—pHValueD1513TestMethodforCarbonBlack,Pelleted—PourDen-sityD1514TestMethod...
