Designation:D7792/D7792M−15StandardPracticeforFreeze/ThawConditioningofPultrudedFiberReinforcedPolymer(FRP)CompositesUsedinStructuralDesigns1ThisstandardisissuedunderthefixeddesignationD7792/D7792M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Ingeneral,itisfeasiblethatthemechanicalpropertiesofFRPcompositeswillbeaffectedbyenvironmentalconditionssuchasfreeze/thawcycling.Inordertomakereliablecom-parisonsbetweendifferentmaterialsunderfreeze/thawenvi-ronmentalconditions,itisnecessarytostandardizethefreeze/thawconditionstowhichspecimensofthesematerialsaresubjectedpriortoandduringtesting.Thispracticedefinesproceduresforfreeze/thawconditioningofpultrudedFRPcompositesintendedforuseinstructuraldesignapplications.1.2Units—ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnoncon-formancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D618PracticeforConditioningPlasticsforTestingD3918TerminologyRelatingtoReinforcedPlasticPul-trudedProductsD6641/D6641MTestMethodforCompressivePropertiesofPolymerMatrixCompositeMaterialsUsingaCombinedLoadingCompression(CLC)TestFixtureD7290PracticeforEvaluatingMaterialPropertyCharacter-isticValuesforPolymericCompositesforCivilEngineer-ingStructuralApplicationsD7745PracticeforTestingPultrudedComposites3.Terminology3.1Definitions:3.1.1standardlaboratorytemperature—atemperatureof2362°C[73.463.6°F].3.1.2s...
