NF S10-112-2-2001 激光和激光相关设备.光学表面激光诱导损坏的阈值测定.第2部分:S-on-1试验

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【英文标准名称】:Seriescapacitorsforpowersystems.Part2:protectiveequipmentforseriescapacitorbanks.
【原文标准名称】:电力系统用串联电容器.第2部分:串联电容器组的保护设备
【标准号】:NFC54-145-1994
【标准状态】:现行
【国别】:法国
【发布日期】:1994-12-01
【实施或试行日期】:1994-12-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:动力电流;交流电流;阻尼(波);规范(验收);低电压;过载保护装置;电气安全;超荷载;保护设备;操作;蓄电池组;过电压;电流互感器;电力电容器;串联电容器;作标记;电容器组;交流电压;电力装置;安全要求;安全;安全装置;电子设备及元件;安全工程;定义;试验;分类系统;质量;电容器;电气工程
【英文主题词】:Alternatingcurrent;Alternatingvoltages;Batteries;Capacitorbanks;Capacitors;Classificationsystems;Currenttransformers;Damping;Definition;Definitions;Electricalengineering;Electricalsafety;Electronicequipmentandcomponents;Lowvoltage;Marking;Operation;Overload;Overloadprotection;Overvoltage;Powercapacitors;Powercurrent;Powerinstallations;Protectiondevices;Quality;Safety;Safetydevices;Safetyengineering;Safetyrequirements;Seriescapacitors;Specification(approval);Testing
【摘要】:
【中国标准分类号】:K42
【国际标准分类号】:31_060_70
【页数】:55P.;A4
【正文语种】:其他


【英文标准名称】:StandardTestMethodforDeterminingtheContentofCesium-137inIrradiatedNuclearFuelsbyHigh-ResolutionGamma-RaySpectralAnalysis
【原文标准名称】:用高分辨率γ射线光谱分析法对照射过的核燃料中的铯137的标准试验方法
【标准号】:ASTME692-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:
【英文主题词】:Cesium-137;gamma-rayspectrometer;nuclearfuel;percentfission;Cesium-137;Gammaradiation--nuclearmaterials/applications;High-resolutiongamma-rayspectralanalysis;Nuclearfuels(reactor);Plutonium;Uranium
【摘要】:Thistestmethodusesahigh-resolutiongamma-rayspectrometerasabasisformeasuringthegamma-rayemissionrateof137Cs-137mBainadilutenitricacidsolutioncontaining10mg/Lofcesiumcarrier.Nochemicalseparationofthecesiumfromthedissolved-fuelsolutionisrequired.Theprincipalstepsconsistofdilutingaweighedaliquotofthedissolved-fuelsolutionwithaknownmassof1Mnitricacid(HNO3)andmeasuringthe662keVgamma-raycountratefromthesample,thenmeasuringthe662keVgamma-raycountratefromastandardsourcethathasthesamephysicalformandcountinggeometryasthesample.Theamountoffuelsamplerequiredfortheanalysisissmall.Forasamplecontaining0.1goffuelirradiatedtooneatompercentfission,anetcountrateofapproximately105countspersecondwillbeobservedforacountinggeometrythatyieldsafull-energypeakefficiencyfractionof1x00D7;10-3.Theadvantageofthissmallamountofsampleisthattheconcentrationoffuelmaterialcanbekeptatlevelswellbelow1g/L,whichresultsinnegligibleself-absorptioninthesamplealiquotandasmallradiationhazardtotheanalyst.1.1Thistestmethodcoversthedeterminationofthenumberofatomsof137Csinaqueoussolutionsofirradiateduraniumandplutoniumnuclearfuel.Whencombinedwithamethodfordeterminingtheinitialnumberoffissileatomsinthefuel,theresultsofthisanalysisallowsatompercentfission(burn-up)tobecalculated(1).Thedeterminationofatompercentfission,uraniumandplutoniumconcentrations,andisotopicabundancesarecoveredinTestMethodsE267andE321.1.2137Csisnotsuitableasafissionmonitorforsamplesthatmayhavelostcesiumduringreactoroperation.Forexample,alargetemperaturegradientenhances137Csmigrationfromthefuelregiontocoolerregionssuchastheradialfuel-cladgap,or,toalesserextent,towardstheaxialfuelend.1.3Anonuniform137Csdistributionshouldalerttheanalysttothepotentiallossofthefissionproductnuclide.The137Csdistributionmaybeascertainedbyanaxialgamma-rayscanofthefuelelementtobeassayed.Inamixed-oxidefuel,comparisonofthe137Csdistributionwiththedistributionofnonmigratingfission-productnuclidessuchas95Zror144Cewouldindicatetherelativedegreeof137Csmigration.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitesofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F46
【国际标准分类号】:27_120_30
【页数】:4P.;A4
【正文语种】:英语