Designation:D4482−11(Reapproved2017)StandardTestMethodforRubberProperty—ExtensionCyclingFatigue1ThisstandardisissuedunderthefixeddesignationD4482;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationoffatiguelifeofrubbercompoundsundergoingatensile-straincycle.Duringpartofthecycle,thestrainisrelaxedtoazerovalue.Thespecimensaretestedwithoutintentionallyinitiatedflaws,cuts,orcracks.Failureisindicatedbyacompleteruptureofthetestspecimen.1.2Noexactcorrelationbetweenthesetestresultsandserviceisgivenorimplied.Thisisduetothevariednatureofserviceconditions.Thesetestproceduresdoyielddatathatcanbeusedforthecomparativeevaluationofrubbercompoundsfortheirabilitytoresist(dynamic)extensioncyclingfatigue.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D3182PracticeforRubber—Materials,Equipment,andPro-ceduresforMixingStandardCompoundsandPreparingStandardVulcanizedSheetsD3767PracticeforRubber—MeasurementofDimensionsD4483PracticeforEvaluatingPrecisionforTestMethodStandardsintheRubberandCarbonBlackManufacturingIndustries2.2BritishStandard:BS5324GuidetoApplicationofStatisticstoRubberTest-ing33.Terminology3.1Defini...
