Designation:D1508−12StandardTestMethodforCarbonBlack,PelletedFinesandAttrition1ThisstandardisissuedunderthefixeddesignationD1508;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthefinesandattritionofpelletedcarbonblack.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1511TestMethodforCarbonBlack—PelletSizeDistri-butionD1799PracticeforCarbonBlack—SamplingPackagedShipmentsD1900PracticeforCarbonBlack—SamplingBulkShip-mentsD4483PracticeforEvaluatingPrecisionforTestMethodStandardsintheRubberandCarbonBlackManufacturingIndustriesD5817PracticeforCarbonBlack,Pelleted—Reduction,Blending,andDryingofGrossSamplesforTestingE11SpecificationforWovenWireTestSieveClothandTestSieves3.SummaryofTestMethod3.1MethodA,Fines—Asampleofcarbonblackisplacedona125-µmsieveandshakeninamechanicalorvibratorysieveshakerfor5min.Thepellets,pelletfragments,dust,andunpelletizedblackthatpassthroughthesievearedefinedascarbonblackfines.Thefinesareexpressedinpercent.3.2MethodB,Attrition—Thesametestsampleisshakenforanadditional15mintodeterminetheamountofpelletdegradationorattritioncreatedduringthisadditionalshakeinterval.Theattritionisexpressedinpercent.4.SignificanceandUse4.1MethodA,Fines—Thefinescontentofcarbonblackisrelatedtothebulkflowability,dustiness,and,insomein-stances,thelevelofdispersion.Duetothemanyothervariablesthatinfluencedispersionandhandling,thesignifi-canceoffinescontentmustbedeterminedbytheuser.4.2MethodB,Attrition—Bycomparingthepercentfinesandattrition,anindicationcanbeobtainedofpelletstabilityand...
