Designation:D4849−21StandardTerminologyRelatedtoYarnsandFibers1ThisstandardisissuedunderthefixeddesignationD4849;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThisstandardisacompilationofterminologydevelopedbyCommitteeD13.58onYarnsandFibers.1.1.1Thisterminology,mostlydefinitions,isuniquetofibersandyarnsusedinthetextileindustry.Termsthataregenerallyunderstoodoradequatelydefinedinotherreadilyavailablesourcesarenotincluded.1.1.2SubcommitteeD13.58hasjurisdictionalresponsibilityforeveryiteminthisstandard.Thestandardsinwhichthetermsanddefinitionsareusedarelistedbynumberafterthedefinition.Thewordingofanentrycannotbechangedwithouttheapprovalof13.58subcommittee.AnychangesapprovedbythesubcommitteeandmaincommitteearethendirectedtosubcommitteeD13.92onTerminologyforsubsequentchangesoradditionstoTerminologyD123.1.1.3ThisterminologystandardisnotallinclusiveofthetermsunderthejurisdictionofSubcommitteeD13.58.OtherterminologystandardsunderthejurisdictionofSubcommitteeD13.58areD3888,D4466,andD4848.1.2Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D76SpecificationforTensileTestingMachinesforTextilesD123TerminologyRelatingtoTextilesD861PracticeforUseoftheTexSystemtoDesignateLinearDensityofFibers,YarnIntermediates,andYarnsD204TestMethodsforSewingThreadsD1059TestMethodforYarnNumberBasedonShort-LengthSpecimensD1230TestMethodforFlammabilityofApparelTextilesD1244PracticeforDesignationofYarnConstructionD1422TestMethodforTwistinSingleSpunYarnsbytheUntwist-RetwistMethodD1423TestMethodforTwistinYarnsbyDire...
