【英文标准名称】:StandardPracticeforPredictionoftheLong-TermBehaviorofMaterials,IncludingWasteForms,UsedinEngineeredBarrierSystems(EBS)forGeologicalDisposalofHigh-LevelRadioactiveWaste
【原文标准名称】:高放射性废弃物地质处置的工程屏障体系(EBS)用包括废弃物形状材料长期性能的预测用标准实施规程
【标准号】:ASTMC1174-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C26.13
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:特种垃圾;废弃物处置;废弃物
【英文主题词】:
【摘要】:1.1Thispracticedescribestestmethodsanddataanalysesusedtodevelopmodelsforthepredictionofthelong-termbehaviorofmaterials,suchasengineeredbarriersystem(EBS)materialsandwasteforms,usedinthegeologicdisposalofspentnuclearfuel(SNF)andotherhigh-levelnuclearwasteinageologicrepository.ThealterationbehaviorofwasteformandEBSmaterialsisimportantbecauseitaffectstheretentionofradionuclidesbythedisposalsystem.ThewasteformandEBSmaterialsprovideabarriertoreleaseeitherdirectly(asinthecaseofwasteformsinwhichtheradionuclidesareinitiallyimmobilized),orindirectly(asinthecaseofcontainmentmaterialsthatrestricttheingressofgroundwaterortheegressofradionuclidesthatarereleasedasthewasteformsandEBSmaterialsdegrade).1.1.1Stepsinvolvedinmakingsuchpredictionsincludeproblemdefinition,testing,modeling,andmodelconfirmation.1.1.2Thepredictionsarebasedonmodelsderivedfromtheoreticalconsiderations,expertjudgment,interpretationofdataobtainedfromtests,andappropriateanalogs.1.1.3Forthepurposeofthispractice,tests1.1.3Forthepurposeofthispractice,testsarecategorizedaccordingtotheinformationtheyprovideandhowitisusedformodeldevelopmentanduse.Thesetestsmayincludebutarenotlimitedtothefollowing:Attributeteststomeasureintrinsicmaterialsproperties,Characterizationteststomeasuretheeffectsofmaterialandenvironmentalvariablesonbehavior,AcceleratedteststoacceleratealterationanddetermineimportantmechanismsandprocessesthatcanaffecttheperformanceofwasteformandEBSmaterials,Serviceconditionteststoconfirmtheappropriatenessofthemodelandvariablesforanticipateddisposalconditions,Confirmationteststoverifythepredictivecapacityofthemodel,andTestsoranalysesperformedwithanalogmaterialstoidentifyimportantmechanisms,verifytheappropriatenessofanacceleratedtestmethod,andtoconfirmlong-termmodelpredictions.1.2Thepurposeofthispracticeistoprovidemethodsfordevelopingmodelsthatcanbeusedforthepredictionofmaterialsbehavioroverthelongperiodsoftimepertinenttotheservicelifeofageologicrepositoryaspartofthebasisforperformanceassessmentoftherepository.1.3Thispracticealsoaddressesuncertaintiesinmaterialsbehaviormodelsandtheirimpactontheconfidenceintheperformanceassessment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:F70
【国际标准分类号】:
【页数】:19P.;A4
【正文语种】: