Designation:D5591−22StandardTestMethodforThermalShrinkageForceofYarnandCordWithaThermalShrinkageForceTester1ThisstandardisissuedunderthefixeddesignationD5591;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverspreparationandprocedurestomeasurethethermalshrinkageforceofyarnsandcordsinair.1.2Thistestmethodisapplicabletomeasurementofthethermalshrinkageforceofyarnsandcordswhoseshrinkageforceat18062°C(35564°F)inairdoesnotexceed20N(4lbf).Thistestmethodisapplicabletonylon,polyester,andaramidyarnsandcordswithintheapplicablerangeofthermalshrinkageforce,aswellastocomparableyarnsandcordsfromotherpolymers.1.2.1Testspecimensmaybetakenfromyarnorcordpackages,orretrievedfromfabrics.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection8.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD885/D885MTestMethodsforTireCords,TireCordFabrics,andIndustrialFilamentYarnsMadefromManu-facturedOrganic-BaseFibersD2258/D2258MPracticeforSamplingYarnforTestingD6477TerminologyRelatingtoTireCord,BeadWire,HoseReinforcingWire,andFabrics(Withdrawn2022)33.Terminology3.1Definitions...
