Designation:D1336−07(Reapproved2015)StandardTestMethodforDistortionofYarninWovenFabrics1ThisstandardisissuedunderthefixeddesignationD1336;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthemeasurementofyarndistortionofonesetofyarnsovertheotherinwovenclothfollowingtheapplicationofsurfacefriction.Thistestmethodespeciallyisapplicabletoopen-weavefabrics,suchasnettings,marquisettes,gauzes,chiffons,andheavierfabricsmadefromslipperysurfaceyarns.NOTE1—Forthedeterminationofyarnslippageinwovenfabrics,refertoTestMethodD434.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareprovidedforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD434TestMethodforResistancetoSlippageofYarnsinWovenFabricsUsingaStandardSeam(Withdrawn2003)3D1776PracticeforConditioningandTestingTextilesD4850TerminologyRelatingtoFabricsandFabricTestMethods2.2FederalStandard:FederalTestMethodStandard191–Method5410SlippageResistanceofYarnsinCloth,YarnDistortionMethod43.Terminology3.1ForallterminologyrelatingtoD13.59,FabricTestMethods,General,refertoTerminologyD4850.3.1.1Thefollowingtermsarerelevanttothisstandard:yarndistortion.3.2Forallotherterminologyrelatedtotextiles,refertoTerminologyD123.4.SummaryofTestMethod4.1Aspecimenissubjectedtoaspecifiedshearingforceactingintheplaneofthefabric.Thedegreetowhichtheforcecausesyarnstoshiftdistortingtheoriginalsymmetryoftheweaveistakenasameasureofeaseofyarndistortioninthefabric.Thedegreeofdistortionisreportedintermsof...
