【英文标准名称】:StandardGuideforEvaluatingDisposalOptionsforConcretefromNuclearFacilityDecommissioning
【原文标准名称】:核设施退役区混凝土处理方案的评估标准指南
【标准号】:ASTME2216-2002(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:E10.03
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:Concrete;Decommissioningoperations;Decontamination;Disposal(ofwastes)
【摘要】:Thisstandardguideappliestoconcretethatisstillinplacewithadefinedgeometryandknown,documentedhistory.Itisnotintendedforuseonconcretethathasalreadybeenrubbelizedwhereitisdifficulttomeasuretheradiationlevelsandnoteasytoremovesurfacecontaminationtoreduceradiationlevelsafterconcretehasbeenrubbelized.Thisstandardguideappliestosurfaceorvolumetricallycontaminatedconcrete,wherethedepthofcontaminationcanbemeasuredorestimatedbasedonthehistoryoftheconcrete.Thisstandardguidedoesnotapplytothereinforcementbar(rebar)foundinconcrete.Althoughmostconcretecontainsrebar,itisgenerallyremovedbeforetheconcreteisdispositioned.Inaddition,rebarmaybeactivated,andiscoveredunderproceduresforreuseofscrapmetal.Generalunit-doseandunit-costdatatosupportthecalculationsisprovidedintheappendicesofthisstandardguide.However,ifsite-specificdataisavailable,itshouldbeusedinsteadofthegeneralinformationprovidedhere.Thisstandardguidehelpsdetermineestimateddosestothepublicduringdisposalofconcreteandtofutureresidentsofdisposalareas.Itdoesnotincludedosetoradiationworkersalreadyinvolvedinaradiationcontrolprogram.Itisassumedthatthedosetoradiationworkersisalreadytrackedandkeptwithinacceptablelevelsthrougharadiationcontrolprogram.Thecostanddosetoradiationworkerscouldbeaddedintofindanoverallcostanddoseforeachoption.1.1Thisstandardguidedefinestheprocessfordevelopingastrategyfordispositioningconcretefromnuclearfacilitydecommissioning.Itoutlinesa10-stepmethodtoevaluatedisposaloptionsforradioactivelycontaminatedconcrete.Oneofthestepsistocompleteadetailedanalysisofthecostanddosetononradiationworkers(thepublic);themethodologyandsupportingdatatoperformthisanalysisaredetailedintheappendices.Theresultingdatacanbeusedtobalancedoseandcostandselectthebestdisposaloption.Thesedata,whichestablishatechnicalbasistoapplytoreleasetheconcrete,canbeusedinseveralways:(1)toshowthatthereleasemeetsexistingreleasecriteria,(2)toestablishabasistorequestreleaseoftheconcreteonacase-by-casebasis,(3)todevelopabasisforestablishingreleasecriteriawherenoneexists.1.2Thisstandardguideisbasedonthex201C;ProtocolforDevelopmentofAuthorizedReleaseLimitsforConcreteatU.S.DepartmentofEnergySites,x201D;(1)fromwhichtheanalysismethodologyandsupportingdataaretaken.1.3GuideE1760providesageneralprocessforreleaseofmaterialscontainingresidualamountsofradioactivity.Inaddition,GuideE1278providesageneralprocessforanalyzingradioactivepathways.ThisstandardguideisintendedforuseinconjunctionwithGuidesE1760andE1278,andprovidesamoredetailedapproachforthereleaseofconcrete.
【中国标准分类号】:F68
【国际标准分类号】:27_120_01
【页数】:14P.;A4
【正文语种】:英语