Designation:D7605−11StandardTestMethodforThermoplasticElastomers—MeasurementofPolymerMeltRheologicalPropertiesandCongealedDynamicPropertiesUsingRotorlessShearRheometers1ThisstandardisissuedunderthefixeddesignationD7605;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheuseofarotorlessoscillatingshearrheometerforthemeasurementoftheflowpropertiesofpolymermeltsandtheirrespectivecongealeddynamicprop-ertiesforthermoplasticelastomers(TPE)whichincludesthermoplasticvulcanizates(TPV).Theseflowpropertiesandcongealeddynamicpropertiesarerelatedtofactoryprocessingandproductperformance.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1349PracticeforRubber—StandardConditionsforTest-ingD3896PracticeforRubberFromSyntheticSources—SamplingD4483PracticeforEvaluatingPrecisionforTestMethodStandardsintheRubberandCarbonBlackManufacturingIndustriesD6600PracticeforEvaluatingTestSensitivityforRubberTestMethods3.Terminology3.1Definitions:3.1.1complexshearmodulus,G*,n—ratioofpeakampli-tudeshearstresstopeakamplitudeshearstrain;mathematically,G*=[(S*/Area)/Strain]=(G’2+G”2)1/2.3.1.2complextorque,S*,n—peakamplitudetorquere-sponsemeasuredbyareactiontorquetransducerforasinusoi-dallyappliedstrain;mathematically,S*iscomputedbyS*=(S’2+S”2)1/2.3.1.3congealedthermoplastic,n—thermoplasticpolymerthatwhencooledfromthemeltstateexhibitsasubstantialportionofthephysicalpropertiesofthesolidstate.3.1.4dynamiccomplexviscosity,η*,n—ra...
