Designation:D2208−16StandardTestMethodforBreakingStrengthofLeatherbytheGrabMethod1ThisstandardisissuedunderthefixeddesignationD2208;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationofthebreak-ingstrengthofleatherbythegrabmethod.Itisintendedforuseonlight,softleathers;boarded,sueded,orembossedleatherstestedonaspecimenintheformofarectanglepiece;narrowstrap,welt,lace,androundbeltleathers;orotherleathersthatcannotbeaccuratelytestedbyTestMethodD2209.Thistestmethoddoesnotapplytowetblue.1.2Thetestmethodisnotrecommendedforbreakingloadsover500lbf(2200N)becauseofslippageofthespecimeninthejaws.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1517TerminologyRelatingtoLeatherD1610PracticeforConditioningLeatherandLeatherProd-uctsforTestingD1813TestMethodforMeasuringThicknessofLeatherTestSpecimensD2209TestMethodforTensileStrengthofLeatherD2211TestMethodforElongationofLeather3.Terminology3.1Fordefinitionsofleathertermsusedinthisstandard,refertoTerminologyD1517.4.SummaryofTestMethod4.1TheleatherspecimenisclampedinthetestmachineasdescribedinTestMethodD2209.Theforcerequiredtorupturetheleatheratajawseparationof1062in./minismeasured,alongwiththepercentelongationatrupture.5.SignificanceandUse5.1Themeasurementofthestrengthofleatherisoftennecessaryinordertodetermineitssuitabilityforitsintendedapplication.Thistestmethodisrecomme...
