ASTM C1347-2002 分析用铀材料制备和溶解的标准实施规程

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【英文标准名称】:StandardPracticeforPreparationandDissolutionofUraniumMaterialsforAnalysis
【原文标准名称】:分析用铀材料制备和溶解的标准实施规程
【标准号】:ASTMC1347-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:C26.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:铀;分析方法;核技术
【英文主题词】:dissolution;microwavedissolution;microwaveoven;uranium-aluminumalloy;uraniumash;uraniumdissolution;uraniummetal;uraniumoxide;uraniumscrap
【摘要】:ThematerialscoveredthatmustmeetASTMspecificationsareuraniummetalanduraniumoxide.Uraniummaterialsareusedasnuclearreactorfuel.Forthisuse,thesematerialsmustmeetcertaincriteriaforuraniumcontent,uranium-235enrichment,andimpuritycontent,asdescribedinSpecificationsC753andC776.Thematerialisassayedforuraniumtodeterminewhetherthecontentisasspecified.Uraniumalloys,refractoryuraniummaterials,anduraniumcontainingscrapandashareuniqueuraniummaterialsforwhichtheusermustdeterminetheapplicabilityofthispractice.Ingeneral,theseuniqueuraniummaterialsaredissolvedwithvariousacidmixturesorbyfusionwithvariousfluxes.1.1Thispracticecoversdissolutiontreatmentsforuraniummaterialsthatareapplicabletothetestmethodsusedforcharacterizingthesematerialsforuraniumelemental,isotopic,andimpuritiesdeterminations.Dissolutiontreatmentsforthemajoruraniummaterialsassayedforuraniumoranalyzedforothercomponentsarelisted.1.2Thetreatments,inorderofpresentation,areasfollows:ProcedureTitleSectionDissolutionofUraniumMetalandOxidewithNitricAcid8.1DissolutionofUraniumOxideswithNitricAcidandResidueTreatment8.2DissolutionofUranium-AluminumAlloysinHydrochloricAcidwithResidueTreatment8.3DissolutionofUraniumScrapandAshbyLeachingwithNitricAcidandTreatmentofResiduebyCarbonateFusion8.4DissolutionofRefractoryUranium-ContainingMaterialbyCarbonateFusion8.5DissolutionofUranium-AluminumAlloysUraniumScrapandAsh,andRefractoryUranium-ContainingMaterialsbyMicrowaveTreatment8.6