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ASTM C1344-2003(2008) 用普通气源质谱仪对六氟化铀进行同位素分析的标准试验方法

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【英文标准名称】:StandardTestMethodforIsotopicAnalysisofUraniumHexafluoridebySingle-StandardGasSourceMassSpectrometerMethod
【原文标准名称】:用普通气源质谱仪对六氟化铀进行同位素分析的标准试验方法
【标准号】:ASTMC1344-2003(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:single-standardgassourcemassspectrometer;uraniumhexafluoride;Isotopicanalysis;Massspectrometry--nuclearmaterials/applications;Neirmassspectrometer;Single-standardgassourcemassspectrometer;Uraniumhexafluoride(UF6);Isotopic
【摘要】:Uraniumhexafluorideisabasicmaterialusedtopreparenuclearreactorfuel.Tobesuitableforthispurpose,thematerialmustmeetthecriteriaforisotopiccomposition.ThistestmethodisdesignedtodeterminewhetherthematerialmeetstherequirementsdescribedinSpecificationsC787andC996.ASTMCommitteeC-26SafeguardsStatement:Thematerial(uraniumhexafluoride)towhichthistestmethodappliesissubjecttothenuclearsafeguardsregulationsgoverningitspossessionanduse.Theanalyticalprocedureinthistestmethodhasbeendesignatedastechnicallyacceptableforgeneratingsafeguardsaccountabilitydata.Whenusedinconjunctionwithappropriatecertifiedreferencematerials(CRMs),thisprocedurecandemonstratetraceabilitytothenationalmeasurementbase.However,adherencetothisproceduredoesnotautomaticallyguaranteeregulatoryacceptanceoftheregulatorysafeguardsmeasurements.Itremainsthesoleresponsibilityoftheuserofthistestmethodtoensurethatitsapplicationtosafeguardshastheapprovaloftheproperregulatoryauthorities.1.1Thistestmethodcoverstheisotopicanalysisofuraniumhexafluoride(UF6)andmaybeusedfortheentirerangeof235Uisotopiccompositionsforwhichstandardsareavailable.1.2ThistestmethodisapplicabletothedeterminationoftheisotopicrelationshipbetweentwoUF6samples.Iftheabundanceofaspecificisotopeofonesample(thestandard)isknown,itsabundanceintheothercanbedetermined.Thistestmethodisflexibleinthatthenumberoftimesagivenmaterialisadmittedtotheionsourcemaybeadjustedtotheminimumrequiredforaspecifiedprecisionlevel.1.3Thesensitivitywithwhichdifferencesbetweentwomaterialscanbedetecteddependsonthemeasuringsystemused,butratio-measuringdevicescangenerallyreadratio-of-molratiodifferencesassmallas0.0001.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection7.
【中国标准分类号】:F46
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:英语


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【英文标准名称】:Aerospaceseries-Connectors,single-waywithtriaxialinterface,fortransmissionofdigitaldata-Solderplug-Productstandard
【原文标准名称】:航空航天系列.数字数据传输用三级接口的单路连接器.焊接插头.产品标准
【标准号】:BSEN3716-004-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-10-31
【实施或试行日期】:2006-10-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;航空运输;航空器部件;数据传送;数据传输设备;设计;数字连接件;数字数据;电连接器;电插头;电气工程;设备;紧固件;插头;产品标准;性能;单路连接器;可钎焊的;航天运输;规范(验收)
【英文主题词】:Aerospacetransport;Airtransport;Aircraftcomponents;Datatransfer;Datatransmissionequipment;Design;Digitalconnections;Digitaldata;Electricconnectors;Electricplugs;Electricalengineering;Equipment;Fasteners;Plugs;Productstandards;Properties;Single-wayconnections;Solderable;Spacetransport;Specification(approval)
【摘要】:Thisstandardspecifiestherequirementsandassemblyinstructionsforsolderplugs,withorwithoutbraidconnection,equippedwithamaleorfemalecontact,usedaccordingtoEN3716-002oncablesconformingtoEN3375-003,EN3375-004orEN3375-005.
【中国标准分类号】:V25
【国际标准分类号】:49_060
【页数】:14P.;A4
【正文语种】:英语


MIL-PRF-17927D, PERFORMANCE SPECIFICATION, GASKETS, FLAME RESISTANT HINGED CLOSURE (27 SEP 2004) [SUPERSEDING MIL-G-17927C]., This specification covers gaskets for use on hinged closures where flame resistance and fume containment are required.