您的位置: 标准下载 » 国际标准 » DIN 德国标准 »

DIN 25706-2-1994 氡的无源测量.第2部分:活性碳测量法

作者:标准资料网 时间:2024-05-27 22:31:17  浏览:9994   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Passivemeasurementsofradon-Part2:Charcoalmeasuringmethod
【原文标准名称】:氡的无源测量.第2部分:活性碳测量法
【标准号】:DIN25706-2-1994
【标准状态】:现行
【国别】:德国
【发布日期】:1994-11
【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】:曝光;0族元素;活性碳;测量仪器;测量技术;质量保证;核技术;惰性收集;氡;放射性;放射性;测量;惰性;定义;活性浓度;内部的空气;建筑物;规范(批准);校正
【英文主题词】:Activatedcarbon;Activityconcentration;Alpharadiation;Betaradiation;Buildings;Calibration;Classificationsystems;Definitions;Detectors(circuits);Electricalengineering;Evaluations;Exposure;Group0elements;Inneratmosphere;Instrumentation;Isotopes;Measurement;Measuringinstruments;Measuringtechniques;Monitoringdevice;Nucleartechnology;Nucleartracks;Operationalmonitoringsystems;Passive;Passivecollectors;Properties;Qualityassurance;Radiationprotection;Radioactive;Radioactivematerials;Radioactivity;Radon;Specification(approval);Testing;Undergroundmining
【摘要】:ThisdocumentdealswiththemeasurementoftheradioactivnoblegasRnwithpassiveradonmeasuringinstruments.Passiveradonmeasuringinstrumentsinthesenseofthisdocumentarepredominantingintegratingcollectinginstrumentswithoutworkingenergy.Theuseofthecharcoalmeasuringmethodisessentiallyrelatedtothemeasurementofactivityconcentrationsofrandonintheairofroomspreferablyforsurveyingmeasurementsinbuildings.
【中国标准分类号】:A61
【国际标准分类号】:17_240
【页数】:4P;A4
【正文语种】:德语


下载地址: 点击此处下载
【英文标准名称】:Aerospaceseries-Circuitbreakers,three-pole,temperaturecompensated,ratedcurrents2Ato25A,switchingcapacity65I-Part004:UNCthreadterminals;productstandard;GermanversionEN3774-004:1999
【原文标准名称】:航空和航天.额定电流为2A至25A、开断容量为65I、三刀温度补偿断路器.第004部分:UNC螺纹端子.产品标准
【标准号】:DINEN3774-004-1999
【标准状态】:现行
【国别】:德国
【发布日期】:1999-08
【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】:开关能力;作标记;航天运输;多语种的;航空航天运输;电气工程;电气保护设备;产品标准;额定电流;飞行器部件;三极;飞行器系统;断路器;航空运输;名称与符号
【英文主题词】:Abilitytoswitch;Aerospacetransport;Airtransport;Aircraftcomponents;Circuit-breakers;Connections;Currents;Designations;Dimensions;Electricalengineering;Electricalpropertiesandphenomena;Electricalprotectionequipment;Electricalsystems;Environmentalcondition;Explosion-proof;Marking;Mass;Mechanicalproperties;Multilingual;Productstandards;Properties;Pulloperation;Pushoperation;Pushbuttons;Ratedcurrent;Spacetransport;Specification(approval);Switches;Switchgear;Temperature;Temperature-compensated;Threadfasteners;Three-pole;Tri-polecircuit-breakers;UNCthreadfasteners;Weights
【摘要】:Thisdocumentspecifiestherequiredcharacteristicsforthree-poletemperaturecompensatedcircuitbreakerswithratedcurrentsfrom2Ato25A,fittedwithUNCthreadfasteners,forelectricalconnections,foruseinaircraftelectricalsystems,atatemperaturebetween-55?and125?andatamaximumaltitudeofZ=22000m.ItshallbeusedtogetherwithEN3774-001.
【中国标准分类号】:V27
【国际标准分类号】:49_060
【页数】:9P.;A4
【正文语种】:德语


【英文标准名称】:StandardPracticeforMeasuringLife-CycleCostsofBuildingsandBuildingSystems
【原文标准名称】:建筑物和建筑物系统使用期成本测算的标准实施规程
【标准号】:ASTME917-2005
【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】:E06.81
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:建筑物;建筑;建设工程;成本;测量
【英文主题词】:buildingeconomics;buildingsystems;costanalysis;engineering-economics;life-cyclecosts;present-valueanalysis
【摘要】:LCCanalysisisaneconomicmethodforevaluatingaprojectorprojectalternativesoveradesignatedstudyperiod.ThemethodentailscomputingtheLCCforalternativebuildingdesignsorsystemspecificationshavingthesamepurposeandthencomparingthemtodeterminewhichhasthelowestLCCoverthestudyperiod.TheLCCmethodisparticularlysuitablefordeterminingwhetherthehigherinitialcostofabuildingorbuildingsystemiseconomicallyjustifiedbyreductionsinfuturecosts(forexample,operating,maintenance,repair,orreplacementcosts)whencomparedwithanalternativethathasalowerinitialcostbuthigherfuturecosts.Ifabuildingdesignorsystemspecificationhasbothalowerinitialcostandlowerfuturecostsrelativetoanalternative,anLCCanalysisisnotneededtoshowthattheformeristheeconomicallypreferablechoice.Ifaninvestmentprojectisnotessentialtothebuildingoperation(forexample,replacementofexistingsingle-panewindowswithnewdouble-panewindows),theprojectmustbecomparedagainstthex201C;donothingx201D;alternative(thatis,keepingthesinglepanewindows)inordertodetermineifitiscosteffective.Typicallythex201C;donothingx201D;alternativeentailsnoinitialinvestmentcostbuthashigherfuturecoststhantheproposedproject.1.1Thispracticeestablishesaprocedureforevaluatingthelife-cyclecost(LCC)ofabuildingorbuildingsystemandcomparingtheLCCsofalternativebuildingdesignsorsystemsthatsatisfythesamefunctionalrequirements.1.2TheLCCmethodmeasures,inpresent-valueorannual-valueterms,thesumofallrelevantcostsassociatedwithowningandoperatingabuildingorbuildingsystemoveraspecifiedtimeperiod.1.3ThebasicpremiseoftheLCCmethodisthattoaninvestorordecisionmakerallcostsarisingfromaninvestmentdecisionarepotentiallyimportanttothatdecision,includingfutureaswellaspresentcosts.Appliedtobuildingsorbuildingsystems,theLCCencompassesallrelevantcostsoveradesignatedstudyperiod,includingthecostsofdesigning,purchasing/leasing,constructing/installing,operating,maintaining,repairing,replacing,anddisposingofaparticularbuildingdesignorsystem.
【中国标准分类号】:P02
【国际标准分类号】:91_010_20
【页数】:19P.;A4
【正文语种】: