Designation:D2260−03(Reapproved2018)StandardTablesofConversionFactorsandEquivalentYarnNumbersMeasuredinVariousNumberingSystems1ThisstandardisissuedunderthefixeddesignationD2260;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetablesinclude(1)aseriesofconversionfactorsrequiredtoconvertthenumberofayarnmeasuredinaspecificsystemtotheequivalentnumbermeasuredinvariousothersystems(seeTable1),and(2)specificequivalentnumbersforyarnsmeasuredinvarioussystems(seeTable2).1.2Thecontentisbasicallyconsistentwithrecommenda-tionsoftheInternationalOrganizationforStandardization(ISO)Standard2947.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD4849TerminologyRelatedtoYarnsandFibersSI10StandardforUseoftheInternationalSystemofUnits(SI):TheModernMetricSystem32.2ISOStandard:Standard2947Textiles–IntegratedConversionTableforRe-placingTraditionalYarnNumbersbyRoundedNumbersintheTexSystem42.3NISTStandard:NISTCircularM121,January193653.Terminology3.1RefertoTerminologyD4849fordefinitionofthefollowingtersusedinthisstandard:Americangrainco...
