-(-IS-/1ASTMD305387m075753000287035m1Designation:D3051-87AMERICANSOCIETYFORTESTINGANDMATERIALS1916RaceSt.,Philadelphia,Pa.19103ReprintedfromtheAnnualBookofASTMStandards,CopyrightASTMIfnotlistedinthecurrentcombinedindex.willappearinlhenexteditionStandardPracticeforTESTMETHODS‘CARBONBLACK-STATINGTHEPRECISIONOFASTMThisstandardisissuedunderthefixeddesignationD3051;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Aouniberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(E)indicatesaneditorialchangesincethelastrevisionorreapproval.1.scope1.IThispracticeofferssimplifiedguidelinesforstatingtheprecisionofASTMtestmethodsforcarbonblackasdeterminedinPracticeD3396.1.2Thetwocomponentsofprecisionutilizedaretherepeatabilityofatestandthereproduci-bilityofatest.1.2.1Thecomponentofrepeatabilityisin-tendedtoberelevanttowithin-laboratoryprob-lemsconcerningstatisticalprocesscontrollimits,qualityassurance,andresearch.Therepeatabilityrepresentstheinherenterrorofthetestmethod.1.2.2Thecomponentofreproducibilityisin-tendedtoberelevanttobetween-laboratoryproblemsconcerningpurchasespecifications,qualityassurance,andindustrystandardrefer-enceblacks.Thereproducibilityrepresentstheinherenttesterrorplusacomponentofvariabil-ityduetodifferentapparatus,reagents,ambientconditions,technique,andsoforth,betweenlab-oratories.i.3Thisstandardmayinvolvehazardousma-terials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyprob-lemsassociatedwithitsirse.itistheresponsibil-ityoftheuserofthisstandardtoestablishappro-priatesaferyandhealthpracticesanddeterminetheapplicabilityofregulalotylimitationspriortoirse.2.ReferencedDocument2.IASTMStandard:D3396PracticeforCarbonBlack-MeasuringthePrecisionofASTMTestMethods’3.Definitions3.1testresult-thefinalresultofonedeter-minationormultipledeterminationsrunsimul-taneouslyoronthesamedaybythesametech-niciansdependinguponthedirectionsoftheprocedures.3.2testprecisi...
