DIN ETS 300303-1995 综合服务数字网(ISDN).ISDN全球移动通讯信系统(GSM).公共地面移动网(PLMN)信令接口
时间:2024-05-19 13:50:54 来源: 标准资料网 作者：标准资料网 阅读：9944
【英文标准名称】:IntegratedServicesDigitalNetwork(ISDN)-ISDN-GlobalSystemforMobileCommunications(GSM)-PublicLandMobileNetwork(PLMN)signallinginterface;EnglishversionETS300303:1994
【原文标准名称】:综合服务数字网(ISDN).ISDN全球移动通讯信系统(GSM).公共地面移动网(PLMN)信令接口
【标准号】:DINETS300303-1995
【标准状态】:现行
【国别】:德国
【发布日期】:1995-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:信号发送系统;电气工程;信号传输;无线电广播网;综合服务数字网络;接口(数据加工);界面;电信设备;地面流动服务设施;电信;移动通信系统
【英文主题词】:Communicationservice;Electricalengineering;Integratedservicesdigitalnetwork;Interfaces;Interfaces(dataprocessing);ISDN;Land-mobileservices;Mobilecommunicationsystems;Radionetworks;Signaltransmission;Signallingsystems;Telecommunication;Telecommunications
【摘要】:ThedocumentdealswiththeGSMpubliclandmobilenetworksignallinginterface.
【中国标准分类号】:M11
【国际标准分类号】:33_080
【页数】:21P.;A4
【正文语种】:德语
【英文标准名称】:StandardGuideforDeterminationofNeptunium-237inSoil
【原文标准名称】:测定土壤中镎237的标准指南
【标准号】:ASTMC1475-2005
【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】:(Guide)
【标准水平】:()
【中文主题词】:土壤;镎;测定;含量测定;放射性核素;土壤分析
【英文主题词】:alphaspectroscopy;americium243;betaconuting;extractionchromatography;gamma-rayspectroscopy;neptunium-239;neptunium-237determination;soilanalysis
【摘要】:Asoilsamplingandanalysisprogramprovidesadirectmeansofdeterminingtheconcentrationanddistributionofradionuclidesinsoil.Thepresenceandextentofneptunium-237isofparticularinterestbecauseitisoneofthemoremobiletransuranicsintermsofmigrationandplantuptake.Sincesoilisanintegratorandareservoironlong-livedradionuclides,andservesasanintermediaryinseveralpathwaysofpotentialimportancetohumans,knowledgeoftheconcentrationofneptunium-237insoilisessential.1.1Thisguidecoversthedeterminationofneptunium-237insoilbymeansofradiochemicalseparationsandalphaspectrometry.Thisguideprovidesoptionsintheselectionofsamplepreparation,separation,andmeasurement.Althoughneptunium-237isnotacomponentofglobalfallout,itisaproductofproductionreactorsandspentfuelprocessing.ThisguideisdesignedforanalysisoftengramsofsoilpreviouslycollectedandtreatedinaccordancewithPracticesC998andC999.Larger-sizesamplesofenvironmentalsoilmayalsobeanalyzed,aslongastheconcentrationsofinterferencessuchasuraniumandthoriumareatornearenvironmentalconcentrations.Dependingonthechoiceofasampledissolutionmethod,allchemicalformsofneptuniummaynotbecompletelysolubilized.Thisguideshouldallowthedeterminationofneptunium-237concentrationsfromsubbecquerelpergramlevelstoapplicablestandardsdependingoncounttime,samplesize,detectorefficiency,background,andtraceryield.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.
【中国标准分类号】:Z33
【国际标准分类号】:13_080_10
【页数】:4P.;A4
【正文语种】:
【英文标准名称】:ArticleI-5RadiographicExamination
【原文标准名称】:第I-5条.射线超声检查
【标准号】:ASMESECVIIID2ARTI-5-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001-07-01
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:BoilerandPressureVessels.ArticleI-5RadiographicExamination
【中国标准分类号】:H26
【国际标准分类号】:
【页数】:
【正文语种】:英语