SJ 779-74 3DD71型NPN硅外延平面低频大功率三极管
作者:标准资料网 时间:2024-05-29 08:16:36 浏览:8758
来源:标准资料网
基本信息
标准名称: | 3DD71型NPN硅外延平面低频大功率三极管 |
英文名称: | Detail specification for silicon NPN epitaxial planar low-frequency high power transistors,Type 3DD71 |
中标分类: |
能源、核技术 >>
能源、核技术综合 >>
技术管理 |
发布日期: | 1974-10-01 |
实施日期: | 1974-10-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 4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: 能源 核技术 能源 核技术综合 技术管理
【英文标准名称】:Functionalsafetyofelectrical/electronic/programmableelectronicsafety-relatedsystems-Part7:Overviewoftechniquesandmeasures
【原文标准名称】:电气、电子、程序可控的电子安全相关系统的功能性安全.第7部分:技术和措施概述
【标准号】:IEC61508-7-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-04
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC65A
【标准类型】:()
【标准水平】:()
【中文主题词】:控制工艺学;电控制设备;电气的;电气工程;电气设备;电气安全;电子的;电子工程;电子系统;功能效率;信息技术;IT安全;过程测量和控制技术;可编程序的;可靠性;可靠性保证;安全;安全装置;安全工程;安全要求;安全系统;软件;规范(验收)
【英文主题词】:Controltechnology;Electriccontrolequipment;Electrical;Electricalengineering;Electricalequipment;Electricalsafety;Electronic;Electronicengineering;Electronicsystems;Functionalefficiency;Informationtechnology;ITsecurity;Processmeasuringandcontroltechnology;Programmable;Reliability;Reliabilityassurance;Safety;Safetydevices;Safetyengineering;Safetyrequirements;Safetysystems;Software;Specification(approval)
【摘要】:1.1ThispartofIEC61508containsanoverviewofvarioussafetytechniquesandmeasuresrelevanttoIEC61508-2andIEC61508-3.Thereferencesshouldbeconsideredasbasicreferencestomethodsandtoolsorasexamples,andmaynotrepresentthestateoftheart.1.2IEC61508-1,IEC61598-2,IEC61508-3andIEC61508-4arebasicsafetypublications,althoughthisstatusdoesnotapplyinthecontextoflowcomplexityE/E/PEsafety-relatedsystems(see3.4.3ofIEC61508-4).Asbasicsafetypublications,theyareintendedforusebytechnicalcommitteesinthepreparationofstandardsinaccordancewiththeprinciplescontainedinIECGuide104andISO/IECGuide51.IEC61508-1,IEC61508-2,IEC61508-3andIEC61508-4arealsointendedforuseasstand-alonepublications.ThehorizontalsafetyfunctionofthisinternationalstandarddoesnotapplytomedicalequipmentincompliancewiththeIEC60601series.1.3Oneoftheresponsibilitiesofatechnicalcommitteeis,whereverapplicable,tomakeuseofbasicsafetypublicationsinthepreparationofitspublications.Inthiscontext,therequirements,testmethodsortestconditionsofthisbasicsafetypublicationwillnotapplyunlessspecificallyreferredtoorincludedinthepublicationspreparedbythosetechnicalcommittees.1.4Figure1showstheoverallframeworkforparts1to7ofIEC61508andindicatestherolethatIEC61508-7playsintheachievementoffunctionalsafetyforE/E/PEsafety-relatedsystems.
【中国标准分类号】:N18
【国际标准分类号】:13_320;25_040_40
【页数】:300P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforVacuumDrainageofAsbestos-CementMixes
【原文标准名称】:石棉水泥混合料真空排放的标准试验方法
【标准号】:ASTMC1119-1990(2004)e1
【标准状态】:现行
【国别】:
【发布日期】:1990
【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】:C17.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:石棉水泥;建筑;试验
【英文主题词】:asbestos;asbestos-cement;dewatering;drainage;drainageproperties;drainagerate;drainagespeed;drainagevelocity;suction;vacuumdrainage
【摘要】:Thistestmethodcanbeusedtoestimatethespeedofdrainageandtherateofproductionofproductsfromthefiberevaluated,inindustrialapplications.Itmaybeappliedtosinglegradesoffiber,ortofiberblends,togetherwiththesamebindersystemandprocesswaterusedintheprocessunderevaluation.1.1Thistestmethoddescribesalaboratoryprocedurefortheevaluationofasbestosfiberbymeasuringtherateofdrainageundersuction,ofanasbestos-cementmixture.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Warning-Breathingofasbestosdustishazardous.Asbestosandasbestosproductspresentdemonstratedhealthrisksforusersandforthosewithwhomtheycomeintocontact.Inadditiontootherprecautions,whenworkingwithasbestos-cementproducts,minimizethedustthatresults.Forinformationonthesafeuseofchrysoltileasbestos,referto"SafeUseofChrysotileAsbestos:AManualonPreventiveandControlMeasures."1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeNote1andforspecifichazardwarnings.
【中国标准分类号】:Q14
【国际标准分类号】:91_100_40
【页数】:5P.;A4
【正文语种】: