Designation:D5034−21StandardTestMethodforBreakingStrengthandElongationofTextileFabrics(GrabTest)1ThisstandardisissuedunderthefixeddesignationD5034;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthegrabandmodifiedgrabtestproceduresfordeterminingthebreakingstrengthandelonga-tionofmosttextilefabrics.Provisionsaremadeforwettesting.1.1.1Thegrabtestprocedureisapplicabletowoven,nonwoven,andfeltedfabrics,whilethemodifiedgrabtestprocedureisusedprimarilyforwovenfabrics.1.2Thistestmethodisnotrecommendedforglassfabrics,orforknittedfabricsandothertextilefabricswhichhavehighstretch(morethan11%).NOTE1—Forthedeterminationofthebreakingforceandelongationoftextilefabricsusingtheraveledstriptestprocedureandthecutstriptestprocedure,refertoTestMethodD5035.1.3Thistestmethodprovidesthevaluesinbothinch-poundunitsandSIunits.Inch-poundunitsisthetechnicallycorrectnameforthecustomaryunitsusedintheUnitedStates.SIunitsisthetechnicallycorrectnameforthesystemofmetricunitsknownastheInternationalSystemofUnits.Thevaluesstatedineitheracceptablemetricunitsorinotherunitsshallberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother,withoutcombininginanyway.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendatio...
