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【英文标准名称】:StandardPracticeforQualificationandAcceptanceofBoronBasedMetallicNeutronAbsorbersforNuclearCriticalityControlforDryCaskStorageSystemsandTransportationPackaging
【原文标准名称】:干木桶贮藏装置和运输包装的核临界控制用硼基金属中子吸收剂鉴定与验收的标准实施规程
【标准号】:ASTMC1671-2007
【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】:C26.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:验收;硼;控制;临界状态;危险物品;烘干;金属的;中子吸收剂;核;包装;鉴定;储存系统;运输
【英文主题词】:acceptancetesting;drycaskstorage;isotopicanalysis;neutronabsorber;neutronattenuation;neutronpoison;qualificationtesting;transportationpackaging
【摘要】:Forcriticalitycontrolofnuclearfuelindrystorageandtransportation,themostcommonlyusedneutronabsorbermaterialsareboratedstainlesssteelalloys,boratedaluminumalloys,andboroncarbidealuminumalloycomposites.Theboronusedintheseneutronabsorbermaterialsmaybenaturalorenrichedinthenuclide10B.Theboronisusuallyincorporatedeitherasanintermetallicphase(forexample,AlB2,TiB2,CrB2,etc.)inanaluminumalloyorstainlesssteel,orasastablechemicalcompoundparticulatesuchasboroncarbide(B4C),typicallyinanaluminumMMCorcermet.Whileotherneutronabsorberscontinuetobeinvestigated,10Bhasbeenmostwidelyusedintheseapplications,anditistheonlythermalneutronabsorberaddressedinthisstandard.Inservice,manyneutronabsorbermaterialsareinaccessibleandnotamenabletoasurveillanceprogram.Theseneutronabsorbermaterialsareoftenexpectedtoperformoveranextendedperiod.Qualificationandacceptanceproceduresdemonstratethattheneutronabsorbermaterialhasthenecessarycharacteristicstoperformitsdesignfunctionsduringtheservicelifetime.Thecriticalitycontrolfunctionofneutronabsorbermaterialsindrycaskstoragesystemsandtransportationpackagingsisonlysignificantinthepresenceofamoderator,suchasduringloadingoffuelunderwater,orwateringressresultingfromhypotheticalaccidentconditions.Theexpectedusersofthisstandardincludedesigners,neutronabsorbermaterialsuppliersandpurchasers,governmentagencies,consultantsandutilityowners.Adherencetothisstandarddoesnotguaranteeregulatoryapproval;agovernmentregulatoryauthoritymayrequiredifferenttestsoradditionaltests,andmayimposelimitsorrestrictionsontheuseofaneutronabsorbermaterial.1.1Thispracticeprovidesproceduresforqualificationandacceptanceofneutronabsorbermaterialsusedtoprovidecriticalitycontrolbyabsorbingthermalneutronsinsystemsdesignedfornuclearfuelstorage,transportation,orboth.1.2Thispracticeislimitedtoneutronabsorbermaterialsconsistingofmetalalloys,metalmatrixcomposites(MMCs),andcermets,cladorunclad,containingtheneutronabsorberboron-10(10B).Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A80
【国际标准分类号】:13_300
【页数】:4P.;A4
【正文语种】: