DIN 15146 Bb.3-1970 木制四通平托盘.1000mm×1200mm
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来源:标准资料网
【英文标准名称】:Timberfour-wayflatpallets;1000mm1200mm
【原文标准名称】:木制四通平托盘.1000mm×1200mm
【标准号】:DIN15146Bb.3-1970
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:Cablenetworksfortelevisionsignals,soundsignalsandinteractiveservices-Part1:Systemperformanceofforwardpaths
【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1部分:正向传输路径的系统性能
【标准号】:IEC60728-1-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-09
【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】:天线系统;音频信号;电缆分布系统;电缆电视;电缆电视系统;架设电缆的分布系统;有线电视;同轴;同轴电缆;兼容性;可混用性;定义;电气工程;交互式的;测量技术;性能;性能要求;额定值;接收天线;信号传输;声音广播;规范(验收);电视广播;电视传输;电视信号
【英文主题词】:Antennasystems;Audiosignals;Cabledistributionsystems;Cabletelevision;Cabletelevisionsystem;Cableddistributionsystems;CATV;Coaxial;Coaxialcables;Compatibility;Definitions;Electricalengineering;Interactive;Measuringtechniques;Performance;Performancerequirements;Ratings;Receptionantennae;Signaltransmission;Soundbroadcasting;Specification(approval);Televisionbroadcasting;Televisiontransmission;Visionsignals
【摘要】:ThispartofIEC60728isapplicabletoanycablenetwork(includingindividualreceivingsystems)havingintheforwardpathacoaxialcableoutputandprimarilyintendedfortelevisionandsoundsignalsoperatingbetweenabout30MHzand3000MHz．Thisstandardspecifiesthebasicmethodsofmeasurementoftheoperationalcharacteristicsofcablenetworkhavingcoaxialcableoutputsinordertoassesslheperformanceofthesesystemsandtheirperformancelimits．AIlrequirementsrefertotheperformancelimits,whichshallbeobtainedbetweentheinput(s)totheheadendorheadendsandanysystemoutletwhenterminatedinaresistanceequaltothenominalloadimpedanceoffhesystem．unlessotherwisespecified．Wheresystemoutletsarenotused,theaboveappliesatthesubscriber'sendofthesubscriber'sfeeder．Alsotherequirementswhichareobtainedbetweentheinput(s)totheheadendorheadendsandanyhomenetworkinterface(HNI)aregiven．NOTE1Methodsofmeasurementdescribedinthisstandardareconsideredasbasic．However,anyequivalentmethodthatensuresatleastthesameaccuracymaybeused．NOTE2Ifthesystemoperatorwishestosubdividethesystemintoanumberofpartsorwishestousedifferenttransmissionmedia(forexample,coaxialcabling,balancedcabling．opticalcabling),theaccumulationofaegraaationsshouldnotexceedthefIguresgiveninthisstandard．NOTE3SystemperformancerequirementsofreturnpathsaswellasspecificmethodsofmeasurementfortheuseofthereturnpathsincablenetworksaredescribedinIEC60728—10．Clause5definesthesystemperformancelimitswhichwill,withanunimpairedinput,(headendinputsignal),producepictureandsoundsignals(atsystemoutlets)wheretheimpairmenttoanysingleparameterwiIIbenotworse．innormaIoperatingconditionsforanyanaloguechanneI,thanGradefouronthefive—gradeimpairmentscalecontainedinITU-BT500-10．Fordigitallymodulatedsignals．thequalityrequirementisaquasi-error-free(QEF)reception．AppropriateperformancerequirementsforthesignalsatthereceivingantennassitearegiyeninClause6inordertoprovideattheinputoftheheadendofthecablenetworkbothanalogueanddigitaltelevisionsignalswithsuitablequality．一Clause7isapplicabletohomenetworks(includingthoseofindividualreceivingsystems)usingcoaxialcables,balancedcablesoropticalcablesandprimarilyintendedfortelevisionsignals,soundsignalsandinteractiveservices,operatingbetweenabout30MHzand3000MHz．Thisclause,consideringthebasicoperationalcharacteristicsofahomenetwork,specifiestherequirementswhichshallbeobtainedatthehomenetworkinterface(HNI)takingintoaccounttheperformancerequirementsgivenatthesystemoutletorattheterminalinput．
【中国标准分类号】:M60
【国际标准分类号】:33_060_40
【页数】:156P;A4
【正文语种】:英语
基本信息
| 标准名称： | 内燃机燃油系统输送常规液体燃油用纯胶管和橡胶软管 |
| 中标分类： |
化工 >>
橡胶制品及其辅助材料 >>
胶管、胶带、胶布 |
| 替代情况： | 调整为HG/T 3042-1989(1997) |
| 发布日期： | |
| 实施日期： | 1989-12-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 12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： 化工 橡胶制品及其辅助材料 胶管 胶带 胶布
