Designation:C1220−10StandardTestMethodforStaticLeachingofMonolithicWasteFormsforDisposalofRadioactiveWaste1ThisstandardisissuedunderthefixeddesignationC1220;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodprovidesameasureofthechemicaldurabilityofasimulatedorradioactivemonolithicwasteform,suchasaglass,ceramic,cement(grout),orcermet,inatestsolutionattemperatures<100°Cunderlowspecimensurface-area-to-leachantvolume(S/V)ratioconditions.1.2Thistestmethodcanbeusedtocharacterizethedisso-lutionorleachingbehaviorsofvarioussimulatedorradioactivewasteformsinvariousleachantsunderthespecificconditionsofthetestbasedonanalysisofthetestsolution.Datafromthistestareusedtocalculatenormalizedelementalmasslossvaluesfromspecimensexposedtoaqueoussolutionsattem-peratures<100°C.1.3Thetestisconductedunderstaticconditionsinaconstantsolutionvolumeandataconstanttemperature.Thereactivityofthetestspecimenisdeterminedfromtheamountsofcomponentsreleasedandaccumulatedinthesolutionoverthetestduration.Awiderangeoftestconditionscanbeusedtostudymaterialbehavior,includingvariousleachantcomposition,specimensurfacearea-to-leachantvolumeratios,temperatures,andtestdurations.1.4Threeleachantcompositionsandfourreferencetestmatricesoftestconditionsarerecommendedtocharacterizematerialsbehaviorandfacilitateinterlaboratorycomparisonsoftestsresults.1.5Specimensurfacesmaybecomealteredduringthistest.Althoughnotpartofthetestmethod,itisrecommendedthatthesealteredsurfaceregionsbeexaminedtocharacterizechemicalandphysicalchangesduetothereactionofwasteformsduringstaticexposuretosolutions.1.6Thistestmethodisnotrecommendedforevaluatingmetallicmaterials,thedegradationofwhichincludesoxidationreactionsthatarenotcontrolledbythistestmethod.1.7Thistestmethodmustbeperformedinaccordancewithallapplica...
