JB/T 9141.7-1999 柔性石墨板材 热失重测定方法
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来源:标准资料网
基本信息
标准名称: | 柔性石墨板材 热失重测定方法 |
英文名称: | Test method for loss of weight by heated of flexible graphite sheets |
中标分类: |
机械 >>
通用零部件 >>
密封与密封装置 |
ICS分类: |
机械系统和通用件 >>
密封件、密封装置
|
替代情况: | ZB J22015-1989 |
发布日期: | 1999-06-28 |
实施日期: | 2000-01-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
归口单位: | (部)填料静密封标准化技术委员会 |
出版日期: | 1900-01-01 |
页数: | 5 页 |
批文号: | 国机管[1999]365号 |
适用范围
JB/T 9141.7-1999
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类: 机械 通用零部件 密封与密封装置 机械系统和通用件 密封件 密封装置
【英文标准名称】:Cablenetworksfortelevisionsignals,soundsignalsandinteractiveservices—Part2:Electromagneticcompatibilityforequipment
【原文标准名称】:电视信号、声音信号和交互式设备用电缆网络.第2部分:设备用电磁兼容性
【标准号】:BSEN50083-2-2006
【标准状态】:作废
【国别】:英国
【发布日期】:2007-06-29
【实施或试行日期】:2007-06-29
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:天线;音频信号;广播;电缆分布点;电缆分布系统;电缆电视;电缆网络;电缆;元件;定义;电气工程;电磁兼容性;电磁特性;电磁辐射;电子设备及元件;EMC;频率范围;干扰抑制;测量;测量设备;测量仪器;测量技术;标准化组件;多媒体;噪声电压;辐射;无线电工程;无线电干扰;声音广播;声传输;规范(验收);电信网;电信;电视;电视广播;电视信号
【英文主题词】:Antennas;Audiosignals;Broadcasting;Cabledistributingpoints;Cabledistributionsystems;Cabletelevision;Cablednetworks;Cables;Components;Definition;Definitions;Electricalengineering;Electromagneticcompatibility;Electromagneticproperties;Electromagneticradiation;Electronicequipmentandcomponents;EMC;Frequencyranges;Interferencerejections;Measurement;Measuringequipment;Measuringinstruments;Measuringtechniques;Modularunits;Multimedia;Noisevoltage;Radiation;Radioengineering;Radiointerferences;Soundbroadcasting;Soundtransmission;Specification(approval);Telecommunicationnetworks;Telecommunications;Television;Televisionbroadcasting;Visionsignals
【摘要】:StandardsofEN50083andEN60728seriesdealwithcablenetworksfortelevisionsignals,soundsignalsandinteractiveservicesincludingequipment,systemsandinstallations?forheadend-reception,processinganddistributionoftelevisionandsoundsignalsandtheirassociateddatasignalsand?forprocessing,interfacingandtransmittingallkindsofsignalsforinteractiveservicesusingallapplicabletransmissionmedia.Allkindsofnetworkslike?CATV-networks?MATV-networksandSMATV-networks?individualreceivingnetworksandallkindsofequipment,systemsandinstallationsinstalledinsuchnetworks,arewithinthisscope.Theextentofthisstandardisationworkisfromtheantennas,specialsignalsourceinputstotheheadendorotherinterfacepointstothenetworkuptotheterminalinput.Thestandardisationofanyuserterminals(i.e.tuners,receivers,decoders,multimediaterminalsetc.)aswellasofanycoaxialandopticalcablesandaccessoriesthereofisexcluded.ThisstandardappliestotheradiationcharacteristicsandimmunitytoelectromagneticdisturbanceofEM-activeequipment(activeandpassiveequipment)forthereception,processinganddistributionoftelevision,soundandinteractivemultimediasignalsasdealtwithinthefollowingpartsofEN50083orEN60728series:-EN60728-3"Activewidebandequipmentforcoaxialcablenetworks"-EN50083-4"Passivewidebandequipmentforcoaxialcablenetworks"-EN50083-5"Headendequipment"-EN60728-6"Opticalequipment"coversthefollowingfrequencyranges:Disturbancevoltageinjectedintothemains9kHzto30MHzRadiationfromactiveequipment5MHzto25GHzImmunityofactiveequipment150kHzto25GHzScreeningeffectivenessofpassiveequipment5MHzto3GHz(25GHz)1)specifiesrequirementsformaximumallowedradiation,minimumimmunityandminimumscreeningeffectiveness;describestestmethodsforconformancetesting.Duetothefactthatcablenetworks,theformercableddistributionsystemsfortelevisionandsoundsignals,aremoreandmoreusedforinteractiveservices,thesenetworksmayincorporatealsoequipmentwhichcarrybesidesthecablenetworkequipmentportsalsooneormoretelecomsignalport(s).Thisequipmentshallbenamedas"multimedianetworkequipment".
【中国标准分类号】:M60
【国际标准分类号】:29_020;33_060_40;33_100_01
【页数】:52P.;A4
【正文语种】:英语
基本信息
标准名称: | 短调节支承 |
中标分类: |
航空、航天 >>
航空器与航天器制造用设备 >>
模具 |
发布日期: | 1988-04-09 |
实施日期: | 1988-07-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 1页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类: 航空 航天 航空器与航天器制造用设备 模具