Designation:D2207−00(Reapproved2021)StandardTestMethodforBurstingStrengthofLeatherbytheBallMethod1ThisstandardisissuedunderthefixeddesignationD2207;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationoftheburst-ingstrengthofleatherbytheballmethod.Itmaybeusedtotestalargevarietyofleathersandleatherproducts.Itisparticularlyapplicabletolight-andmedium-weightleathers,suchasshoeuppersandgarments.Thistestmethoddoesnotapplytowetblue.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1517TerminologyRelatingtoLeatherD1610PracticeforConditioningLeatherandLeatherProd-uctsforTestingD1813TestMethodforMeasuringThicknessofLeatherTestSpecimensD2209TestMethodforTensileStrengthofLeather3.Terminology3.1FordefinitionsofleathertermsusedinthisstandardrefertoTerminologyD1517.4.SummaryofTestMethod4.1Theleatherspecimenismountedintheballburstfixturewhichisattachedtoatestingmachine,asdescribedinTestMethodD2209.Themachineisoperatedatajawseparationof461in./min.Themaximumloa...
