Designation:D3188−06(Reapproved2021)StandardTestMethodsforRubber—EvaluationofIIR(Isobutene-IsopreneRubber)1ThisstandardisissuedunderthefixeddesignationD3188;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthestandardmaterials,testformula,mixingprocedures,andtestmethodsfortheevalua-tionandproductioncontrolofnon-halogenatedisobutene-isoprenerubbers(IIR),commonlyknownasbutylrubber.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D412TestMethodsforVulcanizedRubberandThermoplas-ticElastomers—TensionD1646TestMethodsforRubber—Viscosity,StressRelaxation,andPre-VulcanizationCharacteristics(MooneyViscometer)D2084TestMethodforRubberProperty—VulcanizationUsingOscillatingDiskCureMeterD3182PracticeforRubber—Materials,Equipment,andPro-ceduresforMixingStandardCompoundsandPreparingStandardVulcanizedSheetsD3896PracticeforRubberFromSyntheticSources—SamplingD4483PracticeforEvaluatingPrecisionforTestMethodStandardsintheRubberandCarbonBlackManufacturingIndustriesD5289TestMethodforRubberProperty—VulcanizationUsingRotorlessCureMetersD6204TestMethodforRubber—MeasurementofUnvulca-nizedRheologicalPropertiesUsingRotorless...
