DIN EN 301003-6-2000 宽带综合业务数字网(B-ISDN).数字用户信号系统2号(DSS2)协议.连接特性.连接处所有者峰室率改良.第6部分:网络的抽象试验组(ATS)和检验分部协议执行多余信息的程序规范(PIXIT)

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【英文标准名称】:BroadbandIntegratedServicesDigitalNetwork(B-ISDN)-DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;Peakcellratemodificationbytheconnectionowner-Part6:AbstractTestSuite(ATS)andpartialProtocol
【原文标准名称】:宽带综合业务数字网(B-ISDN).数字用户信号系统2号(DSS2)协议.连接特性.连接处所有者峰室率改良.第6部分:网络的抽象试验组(ATS)和检验分部协议执行多余信息的程序规范(PIXIT)
【标准号】:DINEN301003-6-2000
【标准状态】:作废
【国别】:德国
【发布日期】:2000-10
【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】:通信;宽带网络;信息处理;无线电电路;PIXIT;远程通信;附加信息;综合服务数字网络;信号发送系统;试验要求;宽带综合业务数字网;电信;电信;综合业务数字网络;无线电装置;用户;用户;终端装置;传播技术
【英文主题词】:
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_080
【页数】:1P;A4
【正文语种】:德语


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【英文标准名称】:MeasuringInternalRateofReturnandAdjustedInternalRateofReturnforInvestmentsinBuildingsandBuildingSystems
【原文标准名称】:建筑物和建筑系统投资的内在回报率和调整的内在回报率的测算
【标准号】:ASTME1057-1993
【标准状态】:作废
【国别】:美国
【发布日期】:1993
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:成本;建设工程;建筑物;投资回收;建筑;测算
【英文主题词】:investmentreturn;constructionworks;construction;costs;measurement;buildings
【摘要】:
【中国标准分类号】:P04
【国际标准分类号】:91_040_00
【页数】:7P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforSamplingforParticulateContaminationbyTapeLift
【原文标准名称】:用胶带提取法对表面微粒子污染取样的标准规程
【标准号】:ASTME1216-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:E21.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:航空航天运输;污染;材料;工艺;抽样方法;航天技术;表面
【英文主题词】:particulatecontamination;pressure-sensitivetape;sampling
【摘要】:Thetapeliftprovidesarapidandsimpletechniqueforremovingparticlesfromasurfaceanddeterminingtheirnumberandsizedistribution.Byusingstatisticallydeterminedsamplesizeandlocations,anestimateofthesurfacecleanlinessleveloflargeareascanbemade.Theusershalldefinethesamplingplan.Thesamplingplanshallconsidertheimportanceofsurfacegeometryandsurfaceorientationtogasflow,gravity,obstructions,andprevioushistoryofhardware.Thesefactorsinfluenceparticlefalloutandentrapmentofparticlesonthesurface.Thegeometryofjoints,recessedareas,fasteners,andthecorrespondenceofparticle-countdatatoareacanbemaintained.Theselectionoftapeandtheverificationofitseffectonthecleanlinessofthehardwareisveryimportant.Thetapeadhesiveshouldhavesufficientcohesiontoavoidtransferoftheadhesivetothesurfaceundertest.Theimpactofadhesivetransfershouldbeevaluatedbylaboratorytestingbeforeusingthetapeonthehardware.Sincepotentialforadhesivetransferexists,cleaningtoremoveanyadhesivemightberequired.Inaddition,thetapeshouldhavelowoutgassingcharacteristics,andasaminimum,itshouldmeettherequirementsoflessthan1.0%totalmassloss(TML)and0.1%collectedvolatilecondensablematerials(CVCM),asmeasuredbyTestMethodE595.Careshouldbeexercisedindecidingwhichsurfacesshouldbetestedbythispractice.Thetapecanremovemarginallyadheringpaintandcoatings.Opticalsurfacesshouldnotbetesteduntilverificationhasbeenmadethatthesurfacecoatingwillnotbedamaged.Roughsurfacefinishesresultinlowremovalefficiencies.Surfacefinishesuptoapproximately3.20x03BC;m(125x03BC;in.)havebeentestedandfoundtogivesatisfactoryresults.Thispracticehasbeentestedonlyonsurfacesatroomtemperature.Evaluationoftemperatureeffectsmustbeconductedpriortousingthetestonsurfacesotherthanroomtemperature.Onlypersonnelexperiencedinmicroscopicparticle-countingtechniquesshouldbeusedtocountandsizetheparticles.1.1Thispracticecoversproceduresforsamplingsurfacestodeterminethepresenceofparticulatecontamination,5mandlarger.Thepracticeconsistsoftheapplicationofapressure-sensitivetapetothesurfacefollowedbytheremovalofparticulatecontaminationwiththeremovalofthetape.Thetapewiththeadheringparticlesisthenmountedoncountingslides.Countingandmeasuringofparticlesisdonebystandardtechniques.1.2Thispracticedescribesthematerialsandequipmentrequiredtoperformsamplingofsurfacesforparticlecountingandsizing.1.3Thecriteriaforacceptanceorrejectionofapartforconformancetosurfacecleanlinesslevelrequirementsshallbedeterminedbytheuserandarenotincludedinthispractice.1.4Thispracticeisforuseonsurfacesthatarenotdamagedbytheapplicationofadhesivetape.Theuseofthispracticeonanysurfaceofanymaterialnotpreviouslytestedorforwhichthesusceptibilitytodamageisunknownisnotrecommended.Ingeneral,metals,metalplating,andoxidecoatingswillnotbedamaged.Applicationtopainted,vapordeposited,andopticalcoatingsshouldbeevaluatedbeforeimplementingthistest.1.5Thispracticeprovidesthreemethodstoevaluatetapelifttests,asfollows:SectionsPracticeA-Thismethoduseslighttransmittedthroughthetapeandtapeadhesivetodetectparticlesthatadheretoit.4to6PracticeB-Thismethoduseslighttransmittedthroughthetapeadhesiveafterbondingtoabasemicr......
【中国标准分类号】:V70
【国际标准分类号】:49_040;49_140
【页数】:5P.;A4
【正文语种】: