Designation:F147−87(Reapproved2017)StandardTestMethodforFlexibilityofNon-MetallicGasketMaterials1ThisstandardisissuedunderthefixeddesignationF147;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationoftheflex-ibilityofnon-metallicgasketmaterials.Itisdesignedfortestingspecimenscutfromsheetgoodsorfromthegasketinthefinishedform,assuppliedforcommercialuse.MaterialsnormallyclassifiedasrubbercompoundsareexcludedsincetheyarecoveredinClassificationD2000.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D2000ClassificationSystemforRubberProductsinAuto-motiveApplicationsF104ClassificationSystemforNonmetallicGasketMateri-alsF146TestMethodsforFluidResistanceofGasketMaterials3.SummaryofTestMethod3.1Aspecimenofthematerialisbent180°aroundamandrelofappropriatesizerelativetoitsthickness.Materialswillbetestedbothwithandacrossgrainonmaterialwithgrainorientation.Anelevated-temperatureexposureconditioningisusedtosimulateshelflife.Alow-temperatureexposurecondi-tioningisusedtosimulatehandlingatlow-temperatureenvi-ronments.Testsmayalsobeconductedafterimmersion...
