作者:标准资料网 时间:2024-05-30 05:21:42   浏览:9363   来源:标准资料网

【英文标准名称】:StandardTestMethodforIsotopicAnalysisofHydrolyzedUraniumHexafluorideandUranylNitrateSolutionsbyThermalIonizationMassSpectrometry
【原文标准名称】:用热电离质谱法进行水解六氟化铀和硝酸双氧铀溶液同位素分析的标准试验方法
【标准号】:ASTMC1413-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:同位素;质谱学;核技术;试验;铀含量;六氟化铀
【英文主题词】:isotopes;thermalionizationmassspectrometry;uraniumhexafluoride;uranylnitratesolutions
【摘要】:UraniumhexafluorideusedtoproducenuclearfuelmustmeetcertaincriteriaforitsisotopiccompositionasdescribedinSpecificationsC787andC996.1.1Thismethodappliestothedeterminationsofisotopiccompositioninhydrolyzednucleargradeuraniumhexafluoride.Itcoversisotopicabundanceof235Ubetween0.1and5.0%massfraction,abundanceof234Ubetween0.0055and0.05%massfraction,andabundanceof236Ubetween0.0003and0.5%massfraction.Thistestmethodmaybeapplicabletootherisotopicabundanceprovidingthatcorrespondingstandardsareavailable.1.2Thistestmethodcanapplytouranylnitratesolutions.Thiscanbeachievedeitherbytransformingtheuranylnitratesolutiontoauranylfluoridesolutionpriortothedepositiononthefilamentsordirectlybydepositingtheuranylnitratesolutiononthefilaments.Inthelattercase,acalibrationwithuranylnitratestandardsmustbeperformed.1.3Thistestmethodcanalsoapplytoothernucleargradematrices(forexample,uraniumoxides)byprovidingachemicaltransformationtouranylfluorideoruranylnitratesolution.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F46
【国际标准分类号】:27_120_30
【页数】:4P.;A4
【正文语种】: