【英文标准名称】:Broadcastvideotaperecorders-Methodsofmeasurement-Part4:Analogueaudioperformancemeasurements
【原文标准名称】:广播磁带录像机测量方法第4部分:模拟音频性能测量
【标准号】:IEC61237-4-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-10
【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/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;音频信号;广播工程;测量;测量技术;视频记录;模拟信号;磁带录像机;电学测量;视频信号
【英文主题词】:Analoguesignals;Audiosignals;Broadcastengineering;Broadcasting;Compatibility;Electricalengineering;Electricalmeasurement;Electroacoustics;Measurement;Measuringtechniques;Recordingequipment;Signals;Testing;Videorecording;Videosignals;Videotaperecorders
【摘要】:ThispartofIEC61237describesmethodsofmeasurementandspecialtestsignalsfortheanalogueaudiopartofequipmentmainlydedicatedtorecordingreproductionofTVsignalsonmagnetictapeonreelsorincassettes.Theallowabletolerancesfortheratedvaluesforacceptableperformancearenotgiveninthisstandard,butmaybederivedfromthespecificationsfortherelatedsystemi.e.appropriatepublications,manufacturers'specifications,etc.ThenecessaryreferenceandcalibrationtapesareeithermentionedinthespecificIECpublicationoftheequipmentundertestorincludedinIEC61105andIEC61295,respectively.Themethodsareapplicabletoacceptancetests,performancecomparisonand,asfaraspossible,toroutinechecks.Toensurethattheresultsobtainedataspecifictimeandataspecificplacearecomparabletoothermeasurements,itisadvisabletospecifythetestsignal,measuringdevicesandtypesoftapesusedtogetherwithresultsobtained.
【中国标准分类号】:M71
【国际标准分类号】:33_160_40
【页数】:47P.;A4
【正文语种】:英语


【英文标准名称】:Hydrocarbonbinders-Anionicemulsionsofbitumen-Specifications.
【原文标准名称】:烃类粘合剂.沥青阴离子乳液.规范
【标准号】:NFT65-012-2007
【标准状态】:现行
【国别】:法国
【发布日期】:2007-05-01
【实施或试行日期】:2007-05-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Bindingagents;Bitumens;Bituminousproducts;Bodies;Carriageways;Characteristics;Classification;Determinationofcontent;Emulsions;Homogeneity;Maintenance;Viscosity;Water
【摘要】:
【中国标准分类号】:E43
【国际标准分类号】:75_140;93_080_10
【页数】:6P.;A4
【正文语种】:其他