ASTM C1219-2005 六氟化铀中砷含量的标准试验方法

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【英文标准名称】:StandardTestMethodsforArsenicinUraniumHexafluoride
【原文标准名称】:六氟化铀中砷含量的标准试验方法
【标准号】:ASTMC1219-2005
【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】:使用;砷含量;原子吸收;核材料;光谱测定法;试验;六氟化铀
【英文主题词】:arsenic;arsine;arsinegeneration;atomicabsorptionspectrometry;graphitefurnace;uraniumhexafluoride;uranylfluoride;Zeemanbackgroundcorrection
【摘要】:ArseniccompoundsaresuspectedtocausecorrosioninsomematerialsusedinUF6handlingequipment.Arsenicoriginatesasacontaminantinfluorspar(CaF2)usedtoproduceanhydroushydrogenfluoridewhichisusedsubsequentlyintheproductionofUF6.ThesetestmethodsareusedtomeasurethearseniccontentinUO2F2solutionspreparedfromthehydrolysisofUF6fordeterminationofconformancetoSpecificationC787.1.1Thesetestmethodsareapplicabletothedeterminationoftotalarsenicinuraniumhexafluoride(UF6)byatomicabsorptionspectrometry.Twotestmethodsaregiven:TestMethodA-ArsineGeneration-AtomicAbsorption(Sections),andTestMethodB-GraphiteFurnaceAtomicAbsorption().1.2Thetestmethodsareequivalent.Thelimitofdetectionforeachtestmethodis0.1gAs/gUwhenusingasamplecontaining0.5to1.0gU.TestMethodBdoesnothavethecompletecollectiondetailsforprecisionandbiasdatathusthemethodappearsasanappendix.1.3TestMethodAcoversthemeasurementofarsenicinuranylfluoride(UO2F2)solutionsbyconvertingarsenictoarsineandmeasuringthearsinevaporbyflameatomicabsorptionspectrometry.1.4TestMethodButilizesasolventextractiontoremovetheuraniumfromtheUO2F2solutionpriortomeasurementofthearsenicbygraphitefurnaceatomicabsorptionspectrometry.1.5BothinsolubleandsolublearsenicaremeasuredwhenUF6ispreparedaccordingtoTestMethodC761.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F46
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】: