【英文标准名称】:StandardTestMethodforDeterminationofUraniuminMineralAcidsbyX-RayFluorescence
【原文标准名称】:用X射线荧光法测定无机酸中铀的标准试验法
【标准号】:ASTMC1254-1999(2005)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:X射线;无机酸;X射线荧光;X射线荧光;试验;用X射线;光谱测定法;射线荧光;铀含量
【英文主题词】:Mineralacids;Spectrometry-x-rayfluorescence(XRF);Uraniumcontent;XRF(x-rayfluorescence);uraniumcontent-mineralacids,byx-rayfluorescence,test
【摘要】:Thistestmethodisapplicabletoaqueoussolutionsofuraniumcontaining0.05to20guraniumperlitreofsolutionpresentedtothespectrometer.Eitherwavelength-dispersiveorenergy-dispersiveX-rayfluorescencesystemsmaybeusedprovidedthesoftwareaccompanyingthesystemisabletoaccommodatetheuseofinternalstandards.1.1ThistestmethodcoversthestepsnecessaryforthepreparationandanalysisbyX-rayfluorescence(XRF)ofmineralacidsolutionscontaininguranium.1.2Thistestmethodisvalidforthosesolutionscontaining2to20guranium/Laspresentedtothespectrometer.Higherconcentrationsmaybecoveredbyappropriatedilutions.1.3Thistestmethodrequirestheuseofanappropriateinternalstandard.Caremustbetakentoascertainthatsamplesanalyzedbythistestmethoddonotcontaintheinternalstandardelementorthatthiscontaminationhasbeencorrectedformathematicallywheneverpresent.Suchcorrectionsarenotaddressedinthistestmethod.Caremustalsobetakenthatthechoiceofinternalstandardandsamplemediumarecompatible;thatis,donotuseyttriumwithsolutionscontainingHForstrontiumwiththosehavingH2SO4.Alternativelyascatterlinemaybeusedasinternalstandard.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8andNote1.
【中国标准分类号】:G11
【国际标准分类号】:27_120_30
【页数】:4P.;A4
【正文语种】: