DIN 41793-2-1974 用于通讯技术的半导体元件.电气参考测试法.晶体管
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来源:标准资料网
【英文标准名称】:Lowpoversemiconductordevices;electricalreferencemeasuringmethods,transistors
【原文标准名称】:用于通讯技术的半导体元件.电气参考测试法.晶体管
【标准号】:DIN41793-2-1974
【标准状态】:作废
【国别】:德国
【发布日期】:1974-03
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:半导体;晶体管;直流电流;频率;发射极;敞口的;测量技术
【英文主题词】:open;transistors;semiconductors;frequencies;emitters;measuringtechniques;directcurrent
【摘要】:
【中国标准分类号】:L40
【国际标准分类号】:31_080_30
【页数】:5P;A4
【正文语种】:德语
基本信息
| 标准名称： | 电子工业技术标准制修订工作有关规定和要求 电子工业技术标准编制计划实施阶段划分要求 |
| 英文名称： | Stages-division and requirements for implementation of standards-preparation in electronic industry |
| 中标分类： |
综合 >>
标准化管理与一般规定 >>
技术管理 |
| 发布日期： | 1987-11-12 |
| 实施日期： | 1988-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 11页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 综合 标准化管理与一般规定 技术管理
【英文标准名称】:StandardTestMethodforStructuralPerformanceofExteriorWindows,Doors,SkylightsandCurtainWallsbyUniformStaticAirPressureDifference
【原文标准名称】:用统一静态气压差法测定外窗、幕墙和门结构性能的试验方法
【标准号】:ASTME330-2002(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:E06.51
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:curtainwall;deflection;deformation;distress;door;load;pressurechamber;specimen;support;window;Windows/windowassemblies;Airpressuretesting--buildingconstructions/materials;Curtainwalls;Doors/doorassemblies;Exteriordoors;Exteriorwin
【摘要】:Thistestmethodisastandardprocedurefordeterminingstructuralperformanceunderuniformstaticairpressuredifference.Thistypicallyisintendedtorepresenttheeffectsofawindloadonexteriorbuildingsurfaceelements.Theactualloadingonbuildingsurfacesisquitecomplex,varyingwithwinddirection,time,heightaboveground,buildingshape,terrain,surroundingstructures,andotherfactors.Theresistanceofmanywindows,curtainwalls,anddoorassembliestowindloadingisalsocomplexanddependsonthecompletehistoryofload,magnitude,duration,andrepetition.ThesefactorsarediscussedinASCE7andintheliterature(1-8).DesignwindvelocitiesareselectedforparticulargeographiclocationsandprobabilitiesofoccurrencebasedondatafromwindvelocitymapssuchasareprovidedinASCE7.Thesewindvelocitiesaretranslatedintouniformstaticairpressuredifferencesanddurationsactinginwardandoutward.Complexitiesofwindpressures,asrelatedtobuildingdesign,windintensityversusduration,frequencyofoccurrence,andotherfactorsmustbeconsidered.Superimposedonsustainedwindsaregustingwindswhich,forshortperiodsoftimefromafractionofasecondtoafewseconds,arecapableofmovingatconsiderablyhighervelocitiesthanthesustainedwinds.TheanalyticalproceduresinASCE7,windtunnelstudies,computersimulations,andmodelanalysesarehelpfulindeterminingtheappropriatedesignwindloadsonexteriorsurfaceelementsofbuildings.Generally,windloaddurationsobtainedfromASCE7are2to10sandaredependentuponthespecifictimereferenceemployedindeterminingthepressurecoefficients.Somematerialshavestrengthordeflectioncharacteristicsthataretimedependent.Therefore,thedurationoftheappliedtestloadmayhaveasignificantimpactontheperformanceofmaterialsusedinthetestspecimen.Themostcommonexamplesofmaterialswithtime-dependentresponsecharacteristicsthatareusedareglass,plastics,andcompositesthatemployplastics.Forthisreason,thestrengthofanassemblyistestedfortheactualtimedurationtowhichitwouldbeexposedtoasustainedoragustload,orboth,asdiscussedabove.Generally,U.S.practiceforwindloadtestinghasbeentorequireaminimumtestperiodof10sfortestloadsequaltothedesignwindloadandproofloadsequalto1.5timesthedesignwindload.Thusasafetyfactorisincorporatedinthetesting.WithtestloadsforwindhigherthanthosedeterminedbyASCE7oroflongertimedurationthan10s,thedesignermustconsiderwhatsafetyfactorsareappropriate.Fortestloadsthatrepresentdesignloadsotherthanwind,suchassnowload,considerationshallbegiventoestablishanappropriatetestperiodforbothdesignandproofloadtesting.Thisstandardisnotintendedtoaccountfortheeffectofwindbornedebrisorcyclicloads.ConsiderationofcyclicairpressuredifferentialsisaddressedinTestMethodE1233.ConsiderationofwindbornedebrisincombinationwithcyclicairpressuredifferentialrepresentingextremewindeventsisaddressedinTestMethodE1886andSpecificationE1996.Thistestmethodisnotintendedforuseinevaluatingthestructuraladequacyofglassforaparticularapplication.Whenthestructuralperformanceofglassistobeevaluated,theproceduredescribedinTestMethodE997orE998shallbeused.
