Designation:D1511−12(Reapproved2017)StandardTestMethodforCarbonBlack—PelletSizeDistribution1ThisstandardisissuedunderthefixeddesignationD1511;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthepelletsizedistributionofcarbonblack.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1799PracticeforCarbonBlack—SamplingPackagedShipmentsD1900PracticeforCarbonBlack—SamplingBulkShip-mentsD4483PracticeforEvaluatingPrecisionforTestMethodStandardsintheRubberandCarbonBlackManufacturingIndustriesD5817PracticeforCarbonBlack,Pelleted—Reduction,Blending,andDryingofGrossSamplesforTestingE11SpecificationforWovenWireTestSieveClothandTestSieves3.SummaryofTestMethod3.1Asampleofcarbonblackisshakeninasieveshakertoseparatethepelletsbysizewithspecifiedseriesofsievescreensarrangedwithprogressivelysmalleropenings.Thepercentage,bymass,ofcarbonblackretainedoneachsieveisweighedtocalculatethepelletsizedistribution.4.SignificanceandUse4.1Thevariationinthesizeofthepelletsmayrelatetothelevelofdispersionandtotheeaseofhandling.Duetothemanyothervariablesthatinfluencedispersionandhandling,thesignificanceofpelletsizemustb...
