Designation:D7149−05(Reapproved2011)´1StandardPracticeforDeterminingtheFreezeThawStabilityofAdhesives1ThisstandardisissuedunderthefixeddesignationD7149;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.´1NOTE—UnitsofmeasurewereeditoriallycorrectedfromhardtosoftconversionsinApril2011.1.Scope1.1Thispracticedeterminestheabilityofanadhesivetowithstandrepeatedfreezingandthawingcyclesatspecifictemperatureswithoutanysignificantchangeinphysicalprop-erties.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thispracticedoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthispracticetoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationpriortouse.2.ReferencedDocuments2.1ASTMStandards:2D907TerminologyofAdhesivesD1084TestMethodsforViscosityofAdhesivesD1293TestMethodsforpHofWaterD2556TestMethodforApparentViscosityofAdhesivesHavingShear-Rate-DependentFlowProperties3.Terminology3.1Definitions:3.1.1ManyofthetermsutilizedinthispracticearedefinedinTerminologyD907.4.SignificanceandUse4.1Thispracticewillprovideaprocedurefordeterminingthestabilityofanadhesivetowithstandfiverepeatedcycles,orasotherwisespecified,offreezingandthawingataspecifictemperature.4.2Thispracticewillallowtheusertodeterminewhetherornottheadhesivecanbeappropriatelyappliedaftercyclingoffreezingandthawing.4.3Thispracticewillidentifyanysignificantchangesinthemanufacturedviscosityoftheproductafterfivecycles,orasotherwisespecified,offreezingandthawingataspecifictemperature.4.4ThispracticewillhelpdetermineifthepHofadhesivehaschangedsignificantlyduetothefreezingandthawingcycles.5.Apparatus5.1A1.0L(1qt)container,orlarger,withlid.Othercontainersizesmaybeapplicablefo...
