Designation:D2524−22StandardTestMethodforBreakingTenacityofWoolFibers,FlatBundleMethod—1⁄8in.(3.2mm)GageLength1ThisstandardisissuedunderthefixeddesignationD2524;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthebreak-ingtenacityofwoolfibersasaflatbundlewitha1⁄8in.(3.2mm)clampseparation.1.2Thistestmethodisespeciallyadaptedtothefiberbundleclampsandstrengthtestinginstrumentsspecified,butmaybeusedonothertensiletestingmachineswhenequippedwithappropriateadapterstoaccommodatetheprescribedclamps.1.3Thistestmethodisapplicabletowoolinanyformwhichcanbehand-combedintosmallbundlesofparallelizedfibers.NOTE1—OthertestmethodsformeasuringbreakingtenacityoffiberbundlesincludeTestMethodsD1294,D1445,andD540.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD540MethodsofTestingMan-MadeStapleFibers;Re-placedbyD3660(Withdrawn1973)3D1294TestMethodforTensileStrengthandBreakingTe-nacityofWoolFiberBundles1-in.(25.4mm)GageLengthD1445TestMethodforBreakingStrengthandElongationofCottonFibers(FlatBundle...
