Designation:D2260−03(Reapproved2013)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-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD4849TerminologyRelatedtoYarnsandFibersSI10StandardforUseoftheInternationalSystemofUnits(SI):TheModernMetricSystem32.2ISOStandard:Standard2947Textiles–IntegratedConversionTableforRe-placingTraditionalYarnNumbersbyRoundedNumbersintheTexSystem42.3NISTStandard:NISTCircularM121,January193653.Terminology3.1RefertoTerminologyD4849fordefinitionofthefollowingtersusedinthisstandard:Americangraincount;cottoncount;cut,inasbestosandglassyarns,cut,inwoolyarns;denier;directyarnnumberingsystems;grain,inyarnspinning;grain,inmeasuringmass;indirectyarnnumberingsystem;lineardensity;lea,inlinenyarns;metriccount;run,intheamericanwoolensystem;tex;worstedcount;yarnnumber;andyarnnumberingsystem.3.2RefertoT...
