Designation:D6601−12StandardTestMethodforRubberProperties—MeasurementofCureandAfter-CureDynamicPropertiesUsingaRotorlessShearRheometer1ThisstandardisissuedunderthefixeddesignationD6601;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheuseofarotorlessoscillatingshearrheometerformeasuringaftercuredynamicpropertiesatpredeterminedtemperature(s)belowthecuretemperature.1.2Specifiedcureconditionsthatapproximatea“staticcure”alsoarecoveredtominimizeeffectsoncuredrubbercompounddynamicproperties.Thistestmethodisnotin-tendedtoreplaceTestMethodD5289.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.4Warning—Compoundsbasedonsiliconeorfluoroelas-tomersmayhavehighlevelsofthermalcontractionorpooradhesiontothedieswhencooledafterthecureportionofthistestmethod,causingslippageduringstrainsweeps.Ifthisoccurs,theresultswillnotbereliable.2.ReferencedDocuments2.1ASTMStandards:2D1349PracticeforRubber—StandardConditionsforTest-ingD4483PracticeforEvaluatingPrecisionforTestMethodStandardsintheRubberandCarbonBlackManufacturingIndustriesD5289TestMethodforRubberProperty—VulcanizationUsingRotorlessCureMetersD5992GuideforDynamicTestingofVulcanizedRubberandRubber-LikeMaterialsUsingVibratoryMethods3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1complexshearmodulus,G*,n—theratioofpeakamplitudeshearstresstopeakamplitudeshearstrain;mathematically,G*=(G'2+G"2)1/2.3.1.2complextorque,S*,n—thepeakamplitudetorqueresponsemeasuredbyareactiontorquetransducerforasinusoidallyappliedstrain;mathematically,S*iscomputedbyS*=(S'2+S"2)1/2.3.1.3dynamiccure,n—anycurecon...
