IEC 60249-3-1-1981 印制电路用基材第3部分:印制电路用特殊材料第1号规范:制造多层印制板中用作粘结片材料的预浸材料
作者:标准资料网 时间:2024-05-14 18:40:35 浏览:8682
来源:标准资料网
【英文标准名称】:Basematerialsforprintedcircuits.Part3:Specialmaterialsusedinconnectionwithprintedcircuits.SpecificationNo.1:Prepregforuseasbondingsheetmaterialinthefabricationofmultilayerprintedboards
【原文标准名称】:印制电路用基材第3部分:印制电路用特殊材料第1号规范:制造多层印制板中用作粘结片材料的预浸材料
【标准号】:IEC60249-3-1-1981
【标准状态】:作废
【国别】:国际
【发布日期】:1981
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC91
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;半成品;生产;包装件;技术数据单;多层印制电路板;材料;规范;印制电路;试验;电子工程;电子设备及元件;浸渍材料;叠层箔;预浸料坯;规范(验收);基底材料;特性;检验
【英文主题词】:
【摘要】:GivestherequirementsofpropertiesoftwotypesofepoxideresinimpregnatedwovenglassfabricwiththeresincuredtoaB-stage.Theyareusedforbondingtogetherprintedcircuitsformedfrommetal-cladepoxideglasslaminatestoproducemultilayer
【中国标准分类号】:L90;L30
【国际标准分类号】:31_180
【页数】:20P;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforDevelopingaCost-EffectiveRiskMitigationPlanforNewandExistingConstructedFacilities
【原文标准名称】:开发新的和现有工程设施成本风险缓解的标准指南
【标准号】:ASTME2506-2006e1
【标准状态】:现行
【国别】:美国
【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】:E06.81
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:adjustedinternalrateofreturn;analyticalhierarchyprocess;buildingconditionassessment;buildingeconomics;buildingsystems;costanalysis;economicevaluationmethods;economicimpacts;engineeringeconomics;homelandsecurity;impactassessment;
【摘要】:StandardpracticesformeasuringtheeconomicperformanceofinvestmentsinbuildingsandbuildingsystemshavebeenpublishedbyASTM.Acomputerprogramthatproduceseconomicmeasuresconsistentwiththesepracticesisavailable.ThecomputerprogramisdescribedinAppendixX3.DiscountFactorTableshasbeenpublishedbyASTMtofacilitatecomputingmeasuresofeconomicperformanceformostofthepractices.Investmentsinlong-livedprojects,suchastheerectionofnewconstructedfacilitiesoradditionsandalterationstoexistingconstructedfacilities,arecharacterizedbyuncertaintiesregardingprojectlife,operationandmaintenancecosts,revenues,andotherfactorsthataffectprojecteconomics.Sincefuturevaluesofthesevariablefactorsaregenerallyunknown,itisdifficulttomakereliableeconomicevaluations.Thetraditionalapproachtouncertaintyinprojectinvestmentanalysisistoapplyeconomicmethodsofprojectevaluationtobest-guessestimatesofprojectinputvariables,asiftheywerecertainestimates,andthentopresentresultsinasingle-value,deterministicfashion.Whenprojectsareevaluatedwithoutregardtouncertaintyofinputstotheanalysis,decisionmakersmayhaveinsufficientinformationtomeasureandevaluatethefinancialriskofinvestinginaprojecthavingadifferentoutcomefromwhatisexpected.Tomakereliableeconomicevaluations,treatmentofuncertaintyandriskisparticularlyimportantforprojectsaffectedbynaturalandman-madehazardsthatoccurinfrequently,buthavesignificantconsequences.Followingthisguidewhenperforminganeconomicevaluationassurestheuserthatrelevanteconomicinformation,includinginformationregardinguncertaininputvariables,isconsideredforprojectsaffectedbynaturalandman-madehazards.Usethisguideintheprojectinitiationandplanningphasesoftheprojectdeliveryprocess.Considerationofalternativecombinationsofriskmitigationstrategiesearlyintheprojectdeliveryprocessallowsbothgreaterflexibilityinaddressingspecifichazardsandlowercostsassociatedwiththeirimplementation.UsethisguideforeconomicevaluationsbasedonPracticesE917(life-cyclecosts),E964(benefit-to-costandsavings-to-investmentratios),E1057(internalrateofreturnandadjustedinternalrateofreturn),E1074(netbenefitsandnetsavings),andE1765(analyticalhierarchyprocessformultiattributedecisionanalysis).UsethisguideinconjunctionwithGuideE2204tosummarizetheresultsofeconomicevaluationsinvolvingnaturalandman-madehazards.1.1Thisguidedescribesagenericframeworkfordevelopingacost-effectiveriskmitigationplanfornewandexistingconstructedfacilitiesx2014;buildings,industrialfacilities,andothercriticalinfrastructure.Thisguideprovidesownersandmanagersofconstructedfacilities,architects,engineers,constructors,otherprovidersofprofessionalservicesforconstructedfacilities,andresearchersanapproachforformulatingandevaluatingcombinationsofriskmitigationstrategies.1.2Thisguideinsuresthatthecombinationsofmitigationstrategiesareformulatedsothattheycanberigorouslyanalyzedwitheconomictools.Economictoolsincludeevaluationmethods,standardsthatsupportandguidetheapplicationofthosemethods,andsoftwareforimplementingtheevaluationmethods.1.3Thegenericframeworkdescribedinthisguidehelpsdecisionmakersassessthelikelihoodthattheirfacilityanditscontentswillbedamagedfromnaturalandman-madehazards;identifyengineering,management,andfinancialstrategiesforabatingtheriskofdamages;andusestandard......
【中国标准分类号】:P02
【国际标准分类号】:91_040_01
【页数】:12P.;A4
【正文语种】:英语
【英文标准名称】:ElectromagneticCompatibilityandRadiospectrumMatters(ERM)-HarmonizedENforCDMAspreadspectrummobilestationsoperatinginthe450MHzcellularband(CDMA450)and410,450and870MHzPAMRbands(CDMA-PAMR)coveringessentialrequirementsofart
【原文标准名称】:电磁兼容性和射频频谱情况(ERM).与包括终端指令R&TTE3.2基本要求的工作在450MHz蜂窝带宽(CDMA450)和410、450和870MHzPAMR带宽的(CDMA-PAMR)CDMA扩频移动台协调的EN标准
【标准号】:EN301526-2006
【标准状态】:现行
【国别】:
【发布日期】:2006-12
【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】:基站;电气工程;电磁兼容性;导则;移动无线电通信系统;无线电工程;无线电设备;无线电装置;规范(验收);远程通信;电信;宽频带通信
【英文主题词】:Basestations;Electricalengineering;Electromagneticcompatibility;EMC;Guidelines;Mobileradiosystems;Radioengineering;Radioequipment;Radiosystems;Specification(approval);Telecommunication;Telecommunications;Widebandcommunication
【摘要】:
【中国标准分类号】:L06
【国际标准分类号】:33_100_01
【页数】:2P.;A4
【正文语种】:英语
