ASTM C1255-2011 用能量色散X射线荧光光谱法分析土壤中铀和钍的标准试验方法
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【英文标准名称】:StandardTestMethodforAnalysisofUraniumandThoriuminSoilsbyEnergyDispersiveX-RayFluorescenceSpectroscopy
【原文标准名称】:用能量色散X射线荧光光谱法分析土壤中铀和钍的标准试验方法
【标准号】:ASTMC1255-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:荧光光谱分析(EDXRF);土壤;钍;铀
【英文主题词】:energydispersiveX-rayfluorescence(EDXRF);soil;thorium;uranium
【摘要】:Thistestmethodwasdevelopedandtheinstrumentcalibratedusinggroundsoilsfromthesiteofanuclearmaterialsplant.Thistestmethodcanbeusedtomeasuretheextentofcontaminationfromuraniumandthoriumingroundsoils.Sincethedetectionlimitofthistechnique(nominally20x03BC;gpergram)approachestypicalbackgroundlevelsforthesecontaminants,themethodcanbeusedasaquickcharacterizationofanon-siteareatoindicatepointsofcontamination.Thenaftercleanup,EDXRFmaybeusedtoverifytheeliminationofcontaminationorotheranalysismethods(suchascolorimetry,fluoremetry,phosphorescence,etc.)canbeusedifitisnecessarytotestforcleanupdowntoarequiredbackgroundlevel.Thistestmethodcanalsobeusedforthesegregationofsoillotsbyestablishedcontaminationlevelsduringon-siteconstructionandexcavation.1.1ThistestmethodcoverstheenergydispersiveX-rayfluorescence(EDXRF)spectrochemicalanalysisoftracelevelsofuraniumandthoriuminsoils.Anysamplematrixthatdiffersfromthegeneralgroundsoilcompositionusedforcalibration(thatis,fertilizerorasampleofmostlyrock)wouldhavetobecalibratedseparatelytodeterminetheeffectofthedifferentmatrixcomposition.1.2Theanalysisisperformedafteraninitialdryingandgrindingofthesample,andtheresultsarereportedonadrybasis.Thesamplepreparationtechniqueusedincorporatesintothesampleanyrocksandorganicmaterialpresentinthesoil.Thistestmethodofsamplepreparationdiffersfromothertechniquesthatinvolvetumblingandsievingthesample.1.3Linearcalibrationisperformedoveraconcentrationrangefrom20to1000x03BC;gpergramforuraniumandthorium.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsinparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:27_120_30
【页数】:7P.;A4
【正文语种】:
【原文标准名称】:用能量色散X射线荧光光谱法分析土壤中铀和钍的标准试验方法
【标准号】:ASTMC1255-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:荧光光谱分析(EDXRF);土壤;钍;铀
【英文主题词】:energydispersiveX-rayfluorescence(EDXRF);soil;thorium;uranium
【摘要】:Thistestmethodwasdevelopedandtheinstrumentcalibratedusinggroundsoilsfromthesiteofanuclearmaterialsplant.Thistestmethodcanbeusedtomeasuretheextentofcontaminationfromuraniumandthoriumingroundsoils.Sincethedetectionlimitofthistechnique(nominally20x03BC;gpergram)approachestypicalbackgroundlevelsforthesecontaminants,themethodcanbeusedasaquickcharacterizationofanon-siteareatoindicatepointsofcontamination.Thenaftercleanup,EDXRFmaybeusedtoverifytheeliminationofcontaminationorotheranalysismethods(suchascolorimetry,fluoremetry,phosphorescence,etc.)canbeusedifitisnecessarytotestforcleanupdowntoarequiredbackgroundlevel.Thistestmethodcanalsobeusedforthesegregationofsoillotsbyestablishedcontaminationlevelsduringon-siteconstructionandexcavation.1.1ThistestmethodcoverstheenergydispersiveX-rayfluorescence(EDXRF)spectrochemicalanalysisoftracelevelsofuraniumandthoriuminsoils.Anysamplematrixthatdiffersfromthegeneralgroundsoilcompositionusedforcalibration(thatis,fertilizerorasampleofmostlyrock)wouldhavetobecalibratedseparatelytodeterminetheeffectofthedifferentmatrixcomposition.1.2Theanalysisisperformedafteraninitialdryingandgrindingofthesample,andtheresultsarereportedonadrybasis.Thesamplepreparationtechniqueusedincorporatesintothesampleanyrocksandorganicmaterialpresentinthesoil.Thistestmethodofsamplepreparationdiffersfromothertechniquesthatinvolvetumblingandsievingthesample.1.3Linearcalibrationisperformedoveraconcentrationrangefrom20to1000x03BC;gpergramforuraniumandthorium.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsinparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:27_120_30
【页数】:7P.;A4
【正文语种】:
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