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【英文标准名称】:StandardTestMethodforRadiochemicalDeterminationofUraniumIsotopesinSoilbyAlphaSpectrometry
【原文标准名称】:用α光谱分析法放化测定土壤中铀同位素的标准试验方法
【标准号】:ASTMC1000-2005
【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】:底部;核能;放射化学;核技术;同位素;铀;铀同位素;光谱测定法;额定值;土壤;测定
【英文主题词】:alphaspectrometry;radiochemistry;soil;uranium
【摘要】:Thistestmethodisusedtoanalyzesoilforalpha-emittinguraniumisotopes.Itcanbeusedtoestablishbaselineuraniumlevelsandtomonitordepositionsfromnuclearfacilities.1.1Thistestmethodcoversthedeterminationofalpha-emittinguraniumisotopesinsoil.Thistestmethoddescribesoneacceptableapproachtothedeterminationofuraniumisotopesinsoil.1.2Thetestmethodisdesignedtoanalyze10gofsoil;however,thesamplesizemaybevariedto50gdependingontheactivitylevel.Thistestmethodmaynotbeabletocompletelydissolveallformsofuraniuminthesoilmatrix.Studieshaveindicatedthattheuseofhydrofluoricacidtodissolvesoilhasresultedinlowervaluesthanresultsusingtotaldissolutionbyfusion.1.3Thelowerlimitofdetectionisdependentoncounttime,samplesize,detectorefficiency,background,andtraceryield.Thechemicalrecoveryaveraged78%inasinglelaboratoryevaluation,and66%inaninterlaboratorycollaborativestudy.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.AspecificprecautionarystatementisgiveninSection10.
【中国标准分类号】:Z33
【国际标准分类号】:17_240
【页数】:5P.;A4
【正文语种】: