ASTM D4505-2005 延长使用寿命的预制反射路面标志带的标准规范

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【英文标准名称】:StandardGuideforPyrophoricity/CombustibilityTestinginSupportofPyrophoricityAnalysesofMetallicUraniumSpentNuclearFuel
【原文标准名称】:支持金属铀废核燃料自燃性分析的自燃性/易燃性测试用标准指南
【标准号】:ASTMC1454-2007
【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】:(Guide)
【标准水平】:()
【中文主题词】:易燃性;燃烧;点火;金属的;核燃料;支持;测试;铀
【英文主题词】:combustion;ignition;pyrophoricity;spentnuclearfuel;spontaneousignition;uraniummetal;uraniummetaloxidation;zirconiumpyrophricity;zirconiumoxidation
【摘要】:1.1Thisguidecoverstestingprotocolsfortestingthepyrophoricity/combustibilitycharacteristicsofmetallicuranium-basedspentnuclearfuel(SNF).Thetestingwillprovidebasicdataforinputintomoredetailedcomputercodesoranalysesofthermal,chemical,andmechanicalSNFresponses.Theseanalyseswouldsupporttheengineeredbarriersystem(EBS)designbasesandsafetyassessmentofextendedinterimstoragefacilitiesandfinaldisposalinageologicrepository.Thetestingalsocouldprovidedatarelatedtolicensingrequirementsforthedesignandoperationofamonitoredretrievablestoragefacility(MRS)orindependentspentfuelstorageinstallation(ISFSI).1.2Thisguidedescribestestingofmetallicuraniumandmetallicuranium-basedSNFinsupportoftransportation(inaccordancewiththerequirementsof10CFR71),interimstorage(inaccordancewiththerequirementsof10CFR72),andgeologicrepositorydisposal(inaccordancewiththerequirementsof10CFR60/63).Thetestingdescribedhereinisdesignedtoprovidebasicdatarelatedtotheevaluationofthepyrophoricity/combustibilitycharacteristicsofcontainersorwastepackagescontainingmetallicuraniumSNFinsupportofsafetyanalyses(SAR),orperformanceassessments(PA)oftransport,storage,ordisposalsystems,oracombinationthereof.1.3Spentnuclearfuelthatisnotreprocessedmustbeemplacedinsecuretemporaryinterimstorageasasteptowardsitsfinaldisposalinageologicrepository.IntheUnitedStates,SNF,frombothciviliancommercialpowerreactorsanddefensenuclearmaterialsproductionreactors,willbesenttointerimstorage,andsubsequently,todeepgeologicdisposal.U.S.commercialSNFcomespredominantlyfromlightwaterreactors(LWRs)andisuraniumdioxide-based,whereasU.S.DepartmentofEnergy(DOE)owneddefensereactorSNFisinseveraldifferentchemicalforms,butpredominantly(approximately80%byweightofuranium)consistsofmetallicuranium.1.4Knowledgeofthepyrophoricity/combustibilitycharacteristicsoftheSNFisrequiredtosupportlicensingactivitiesforextendedinterimstorageandultimatedispositioninageologicrepository.Theseactivitiescouldincludeinterimstorageconfigurationsafetyanalyses,conditioningtreatmentdevelopment,preclosuredesignbasisevent(DBE)analysesoftherepositorycontrolledarea,andpostclosureperformanceassessmentoftheEBS.1.5Metallicuraniumfuelsareclad,generallywithzirconium,aluminum,stainlesssteel,ormagnesiumalloy,topreventcorrosionofthefuelandtocontainfissionproducts.IfthecladdingisdamagedandthemetallicSNFisstoredinwatertheconsequentcorrosionandswellingoftheexposeduraniumenhancesthechemicalreactivityoftheSNFbyfurtherrupturingthecladdingandcreatinguraniumhydrideparticulatesand/orinclusionsintheuraniummetalmatrix.TheconditionofthemetallicSNFwillaffectitsbehaviorintransport,interimstorageorrepositoryemplacement,orboth,andtherefore,influencetheengineeringdecisionsindesigningthepathwaytodisposal.1.6Zircaloyspentfuelcladdinghasoccasionallydemonstratedpyrophoricbehavior.Thisbehavioroftenoccurredoncladdingpiecesorparticulateresiduesleftafterthechemicaldissolutionofmetallicuraniumoruraniumdioxideduringfuelreprocessingofcommercialspentfueland/orextractionofplutoniumfromdefensereactorspentfuel.Althoughitisgenerallybelievedthatzirconiumisnotasintrinsicallypronetopyrophoricbehaviorasuraniumorplutonium,ithasinthepastignitedafterbeingsensitizedduringthechemicalextractionprocess.Althoughthisguideprimarilyaddressesthepyrophoricityofthemetallicuraniumcomponentofthespentfuel,someofthegeneralprinciplesinvolvedcouldalsoapplytozirconiumalloyspentfuelcladding.1.7Theinterpretationofthetestdatade......
【中国标准分类号】:F40
【国际标准分类号】:27_120_30
【页数】:11P.;A4
【正文语种】:

标准名称：	液压磨光拉丝机
替代情况：	转化为LS/T 3526-1995
发布日期：
实施日期：	1995-10-01
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