Designation:C794−15aStandardTestMethodforAdhesion-in-PeelofElastomericJointSealants1ThisstandardisissuedunderthefixeddesignationC794;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversalaboratoryprocedurefordeterminingthestrengthandcharacteristicsofthepeelprop-ertiesofacured-in-placeelastomericjointsealant,single-ormulticomponent,foruseinbuildingconstruction.1.2Thevaluesstatedinmetric(SI)unitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationonly.1.3Thecommitteewithjurisdictionoverthisstandardisnotawareofanycomparablestandardspublishedbyotherorga-nizations.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C717TerminologyofBuildingSealsandSealantsC1375GuideforSubstratesUsedinTestingBuildingSealsandSealantsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.Terminology3.1Forthedefinitionsusedinthistestmethod,seeTermi-nologyC717,standardconditions.4.SummaryofTestMethod4.1Thistestmethodconsistsofpreparingtestspecimensbyembeddingawiremeshscreenbetweentwothinlayersofthesealantbeingtested,ontestsubstrates,curingthesespecimensunderspecifiedtimeandconditions,thenplacingthespecimeninatension-testingmachineinsuchawaythattheembeddedwiremeshscreenispeeledbackfromthesubstrateat180°,whilemeasuringtheforceexertedaswellasthemodeoffailureofthesealantfromthesubstrate.5.SignificanceandUse5.1Therearedifferencesinopinionamongthosec...
