Designation:D1144−99(Reapproved2016)StandardPracticeforDeterminingStrengthDevelopmentofAdhesiveBonds1ThisstandardisissuedunderthefixeddesignationD1144;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversthedeterminationofthestrengthdevelopmentofadhesivebondswhentestedonastandardspecimenunderspecifiedconditionsofpreparationandtesting.Itisapplicabletoadhesivesinliquidorpasteformthatrequirecuringatspecifiedconditionsoftimeandtemperatureorspecificsubstratepreparation.Itisintendedprimarilytobeusedwithmetal-to-metaladherends;however,plastics,woods,glass,orcombinationsofthesemaybesubstituted.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D907TerminologyofAdhesivesD1002TestMethodforApparentShearStrengthofSingle-Lap-JointAdhesivelyBondedMetalSpecimensbyTen-sionLoading(Metal-to-Metal)D1338PracticeforWorkingLifeofLiquidorPasteAdhe-sivesbyConsistencyandBondStrength3.Terminology3.1Definitions—SeveraltermsinthispracticearedefinedinaccordancewithTerminologyD907.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1activator,oraccelerator(surface),n—anadhesivecuringagentthatisappliedtoabondingsurfaceforthepurposeofaffectingorspeeding,orboth,thecureofanadhesive.3.2.2fixturetime(settime),n—theshortesttimerequiredbyanadhesivetodevelophandlingstrengthsuchthattestspeci-menscanberemovedfromfixtures,unclamped,orhandledwithoutstressingthebond,therebyaffectingbondstrength.3.2.3handlingstrength,n—alowlevelofstrengthinitiallyobt...