【英文标准名称】:StandardTestMethodforIsotopicAnalysisofUraniumHexafluoridebySingle-StandardGasSourceMassSpectrometerMethod
【原文标准名称】:用普通气源质谱仪对六氟化铀进行同位素分析的标准试验方法
【标准号】:ASTMC1344-2003(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:C26.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:single-standardgassourcemassspectrometer;uraniumhexafluoride;Isotopicanalysis;Massspectrometry--nuclearmaterials/applications;Neirmassspectrometer;Single-standardgassourcemassspectrometer;Uraniumhexafluoride(UF6);Isotopic
【摘要】:Uraniumhexafluorideisabasicmaterialusedtopreparenuclearreactorfuel.Tobesuitableforthispurpose,thematerialmustmeetthecriteriaforisotopiccomposition.ThistestmethodisdesignedtodeterminewhetherthematerialmeetstherequirementsdescribedinSpecificationsC787andC996.ASTMCommitteeC-26SafeguardsStatement:Thematerial(uraniumhexafluoride)towhichthistestmethodappliesissubjecttothenuclearsafeguardsregulationsgoverningitspossessionanduse.Theanalyticalprocedureinthistestmethodhasbeendesignatedastechnicallyacceptableforgeneratingsafeguardsaccountabilitydata.Whenusedinconjunctionwithappropriatecertifiedreferencematerials(CRMs),thisprocedurecandemonstratetraceabilitytothenationalmeasurementbase.However,adherencetothisproceduredoesnotautomaticallyguaranteeregulatoryacceptanceoftheregulatorysafeguardsmeasurements.Itremainsthesoleresponsibilityoftheuserofthistestmethodtoensurethatitsapplicationtosafeguardshastheapprovaloftheproperregulatoryauthorities.1.1Thistestmethodcoverstheisotopicanalysisofuraniumhexafluoride(UF6)andmaybeusedfortheentirerangeof235Uisotopiccompositionsforwhichstandardsareavailable.1.2ThistestmethodisapplicabletothedeterminationoftheisotopicrelationshipbetweentwoUF6samples.Iftheabundanceofaspecificisotopeofonesample(thestandard)isknown,itsabundanceintheothercanbedetermined.Thistestmethodisflexibleinthatthenumberoftimesagivenmaterialisadmittedtotheionsourcemaybeadjustedtotheminimumrequiredforaspecifiedprecisionlevel.1.3Thesensitivitywithwhichdifferencesbetweentwomaterialscanbedetecteddependsonthemeasuringsystemused,butratio-measuringdevicescangenerallyreadratio-of-molratiodifferencesassmallas0.0001.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection7.
【中国标准分类号】:F46
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:英语