ASTM C968-2006 烧结氧化钆及二氧化铀丸粒的标准试验方法

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【英文标准名称】:StandardTestMethodsforAnalysisofSinteredGadoliniumOxide-UraniumDioxidePellets
【原文标准名称】:烧结氧化钆及二氧化铀丸粒的标准试验方法
【标准号】:ASTMC968-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:分析;二氧化物;钆;核能;丸状材料;烧结
【英文主题词】:Multiple-filamentsurface-ionizationmassspectrometricmethod;Nesslerreagentmethod;Nitrogencontent--nuclearmaterials;Oxygen-to-metal(O/M)ratio;Pyrohydrolysision-selectiveelectrodemethod;Spectrographicanalysis;Spectroscopy--emission;Therm
【摘要】:ThetestmethodsinthismethodaredesignedtoshowwhetheragivenmaterialisinaccordancewithSpecificationC922.1.1Thesetestmethodscoverproceduresfortheanalysisofsinteredgadoliniumoxide-uraniumdioxidepelletstodeterminecompliancewithspecifications.1.2Theanalyticalproceduresappearinthefollowingorder:1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.4Thistestmethoddescribesthedeterminationofnitrogeningadoliniumoxide-uraniumdioxidepellets(Gd2O3/UO2).Witha2to5-gsample,concentrationsfrom5to100gofnitrogenaredeterminedwithoutinterference.1.5ThehomogeneityofGd2O3inUO2hasbeencitedinSpecificationC922asanimportantrequirementforthisfuelform.Theuniformdistributionofgadoliniainuraniawillresultinuptothreecomponentsinthepellet:freeGd2O3,freeUO2,andaGd2O3-UO2solidsolution.Thereareanumberofwaysforassessinguniformityofwhichtheceramographicmethoddescribedheremaynotbethemostdefinitive.Thistechniquehasbeenusedoverthegadoliniaconcentrationrangefrom1to10weight%.
【中国标准分类号】:F46
【国际标准分类号】:27_120_30
【页数】:5P.;A4
【正文语种】: