Designation:D1059–01StandardTestMethodforYarnNumberBasedonShort-LengthSpecimens1ThisstandardisissuedunderthefixeddesignationD1059;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationoftheyarnnumberofalltypesofcotton,woolen,worsted,andman-madefiberyarnstakenfrompackages;orfromanytextilefabricsinwhichtheyarnsareintactandcanberemovedinmeasurablelengths.Thetestmethodisnotapplicabletoyarnstakenfromnappedorcutpilefabrics.Becausethismethodisbasedonshort-lengthspecimens,theresultsshouldonlybeconsideredasapproximationsofyarnnumber.NOTE1—Foramorepreciseprocedureforthedeterminationofyarnnumber,refertoTestMethodD1907.NOTE2—Thefollowingadditionalmethodsforthedeterminationofyarnnumberhavebeenapprovedforyarnsmadefromspecificfibers:SpecificationsD541,D578,andD681.1.2Thistestmethodisapplicabletoyarnswhichstretchlessthan5%whentensiononyarnisincreasedfrom0.25to0.75cN/tex(0.25to0.75gf/tex).Bymutualagreementitmaybeadaptedtoyarnswhichstretchmorethan5%byuseoftensionlowerthanthatspecifiedinthemethodforelastomersoruseoftensionhigherthanthatspecifiedinthemethodtopullthecrimpoutoftexturedyarns.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard;thevaluesininch-poundunitsarereportedasinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:D123TerminologyRelatingtoTextiles2D541SpecificationforSingleJuteYarn3D578SpecificationforGlassFiberStrands2D629TestMethodsforQuantitativeAnalysisofTextiles2D681SpecificationforJuteRoveandPliedYarnforElectricalandPackingPurposes2D1423TestMethodforTwistinYarnsbytheDirect-Co...
