IEC/TS 61340-5-2-1999 静电第5-2部分:电子设备防静电现象的保护用户指南

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【英文标准名称】:Electrostatics-Part5-2:Protectionofelectronicdevicesfromelectrostaticphenomena-Userguide
【原文标准名称】:静电第5-2部分:电子设备防静电现象的保护用户指南
【标准号】:IEC/TS61340-5-2-1999
【标准状态】:作废
【国别】:国际
【发布日期】:1999-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC101
【标准类型】:()
【标准水平】:()
【中文主题词】:手册;静电学;静电充电;电子装置;规范(验收);电气工程;电子仪器
【英文主题词】:
【摘要】:1ThistechnicalspecificationisintendedtocovertheprotectionfromESDdamageofallelectronicdeviceswithvoltagesensitivityofnotlowerthan100Vthroughtheirentirelife.Thisisfromthecommencementofmanufacture,throughproductassembly,productuseandpossiblerepairuntiltheendoftheproductlife.Thistechnicalspecificationisintendedtocaterforelectroniccomponents,assembliesandsubassemblieswithasensitivityof100Vorgreater(humanbodymodel(HBM)),andassuchcoversmostitemsavailable.Thereareonthemarketafewitemswhichmaysufferdamageatlowerlevels.Wheretheseareused,additionaloralternativemethodsshouldbeused.ThesearenotcoveredbyeitherIEC61340-5-1orthisuserguide,asitwouldnotbereasonableoreconomictoequipthegeneralEPAtocaterforthese.Additionalinformationonthesemaybefoundinmanyofthereferencesinthebibliography.TheHBMhasbeenchosenasthemajorcriteria,asdamagefromhumancontactisstillthemostcommonsourceevenintoday'sautomatedsociety.ThereareseveralvaluesgivenindifferentsourcesforHBM,butthechosenoneis100pFand1500Ω.2LowhumidityAtlowrelativehumiditiesthedissipationofstaticchargesoftenbecomesmoredifficult,andsomematerialsmaynotworkefficiently.Aboveabout20%relativehumiditymostmaterialsmaintainmostoftheirefficiency.Whererelativehumiditymaygolowertheusershouldpayparticularattentionthatthematerialsselectedwillperformeffectivelyattheminimumexpectedrelativehumidity.Thisisofparticularimportanceinverycoldandnon-oceanicclimates.3CleanroomsForcleanrooms,thespecialistareasareconsideredtobeclass100ortighter.ManyofthetechniquesincurrentuseforESDprotectionwillnotsatisfythecleanroomconstraints,forexample,carbonbreakingdown,ionicsfromsprayorparticlesfromionizerneedles.Somealternativematerialsareavailable,withimprovedonesstillbeingdeveloped,thatwillcopewithbothconditionsandtheseshouldbeused.Thisareaisparticularlyimportantascleanoperationisanessentialpartofsemiconductormanufacture.Damageoccurringatthisstagemayresultinundetected"walkingwounded"deviceswhichcanhaveveryexpensiveresults.Thecleanroomapplicationiscurrentlythemostdifficulttocontrol,particularlyinclass10andclass1rooms.IEC61340-5-1embodiescurrenttechnology.Asnewandimprovedmaterialsandtechniquesbecomeavailablethisareawillbeimproved,withbenefitsinreliability.
【中国标准分类号】:L04
【国际标准分类号】:17_220_20;31_020
【页数】:109P;A4
【正文语种】:英语


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【英文标准名称】:Waterquality-GuidanceonsamplingandprocessingofthepupalexuviaeofChironomidae(OrderDiptera)forecologicalassessment;EnglishversionofDINEN15196:2006-10
【原文标准名称】:水质.生态质量评定用摇蚊的蛹空壳(双翅目)的抽样和处理指南
【标准号】:EN15196-2006
【标准状态】:现行
【国别】:
【发布日期】:2006-10
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:水生生物学;生物分析和试验;生物试验;稳定性(机械性能);数据分析;定义;生态学;生态系统;调查方法;调查;幼虫;污染控制;质量保证;质量控制;河流;流水;抽样方法;地表水;处理;水质分析;水污染;水常规;水质;水质试验;水域
【英文主题词】:Aquaticbiology;Biologicalanalysisandtesting;Biologicaltests;Consistency(mechanicalproperty);Dataanalysis;Definition;Definitions;Ecology;Ecosystem;Investigationmethods;Investigations;Larvae;Pollutioncontrol;Qualityassurance;Qualitycontrol;Rivers;Runningwaters;Samplingmethods;Surfacewater;Treatment;Wateranalysis;Waterpollution;Waterpractice;Waterquality;Watertesting;Waters
【摘要】:
【中国标准分类号】:Z16
【国际标准分类号】:13_060_70
【页数】:13P.;A4
【正文语种】:英语


Product Code:SAE AS3074
Title:Gasket - 37掳 Flared Tube Fitting, Nickel, AMS 5553 (NONCURRENT Feb 1998)
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:Scope unavailable.