Designation:C1663−09StandardTestMethodforMeasuringWasteGlassorGlassCeramicDurabilitybyVaporHydrationTest1ThisstandardisissuedunderthefixeddesignationC1663;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thevaporhydrationtestmethodcanbeusedtostudythecorrosionofawasteformssuchasglassesandglassceramics2uponexposuretowatervaporatelevatedtempera-tures.Inaddition,thealterationphasesthatformcanbeusedasindicatorsofthosephasesthatmayformunderrepositoryconditions.Thesetests;whichallowalteringofglassathighsurfaceareatosolutionvolumeratio;provideusefulinforma-tionregardingthealterationphasesthatareformed,thedispositionofradioactiveandhazardouscomponents,andthealterationkineticsunderthespecifictestconditions.Thisinformationmaybeusedinperformanceassessment(McGrailetal,2002(1)3forexample).1.2Thistestmethodmustbeperformedinaccordancewithallqualityassurancerequirementsforacceptanceofthedata.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:4C162TerminologyofGlassandGlassProductsD1125TestMethodsforElectricalConductivityandResis-tivityofWaterD1193SpecificationforReagentWaterD1293TestMethodsforpHofWaterE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.Terminology3.1Definitions:3.1.1alterationlayer—alayerofalterationproductsatthesurfaceofspecimen.Severaldistinctlayersmayformatthesurfaceandwithincracksintheglass.Layersmaybecom-prisedofdiscretecrystallites.Thethicknessoftheselayersmaybeusedtoestimatetheamountofglassaltered.3.1.2alterationproducts—c...
