Designation:D1338−99(Reapproved2021)StandardPracticeforWorkingLifeofLiquidorPasteAdhesivesbyConsistencyandBondStrength1ThisstandardisissuedunderthefixeddesignationD1338;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thispracticecoverstwoproceduresapplicabletoalladhesiveshavingarelativelyshortworkinglife.Itisintendedtodeterminewhethertheworkinglifeconformstothemini-mumspecifiedworkinglifeofanadhesiverequiredbyconsistencytestsorbybondstrengthtests,orbyboth.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D897TestMethodforTensilePropertiesofAdhesiveBondsD906TestMethodforStrengthPropertiesofAdhesivesinPlywoodTypeConstructioninShearbyTensionLoadingD907TerminologyofAdhesivesD1002TestMethodforApparentShearStrengthofSingle-Lap-JointAdhesivelyBondedMetalSpecimensbyTen-sionLoading(Metal-to-Metal)D1084TestMethodsforViscosityofAdhesives3.Terminology3.1Definitions—ManytermsinthispracticearedefinedinTerminologyD907.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1workinglifeofanadhesive,n—thetimeelapsingbetweenthemomentanadhesiveisreadyforuseandthetimewhentheadhe...
