GB/T 4574-1984 模拟通信网中实际电路噪声与模拟系统负荷的电路噪声测试方法
时间:2024-05-19 07:34:37 来源: 标准资料网 作者：标准资料网 阅读：8567
基本信息
| 标准名称： | 模拟通信网中实际电路噪声与模拟系统负荷的电路噪声测试方法 |
| 英文名称： | Measuring methods for actual circuit noise and the circuit noise in simulating system loading over the analogue communication network |
| 中标分类： |
通信、广播 >>
通信网 >>
通信网性能指标及测试 |
| ICS分类： |
电信、音频和视频技术 >>
电信系统 >>
线路、连接和电路
|
| 替代情况： | 作废; |
| 发布部门： | 信息产业部（通信） |
| 发布日期： | 1984-07-17 |
| 实施日期： | 1985-04-01 |
| 首发日期： | 1984-07-17 |
| 作废日期： | 2005-10-14 |
| 主管部门： | 信息产业部（通信） |
| 归口单位： | 信息产业部（通信） |
| 起草单位： | 电信传输所 |
| 出版日期： | 1900-01-01 |
| 页数： | 0 |
适用范围
本标准提出两种噪声测试方法。第一种方法适用于测量模拟通信网中的实际电路噪声，同时可供维护测试使用。第二种方法提出用白噪声模拟系统负荷来测量通信网中由频分多路复用系统组成的电路、基群段和超群段由本系统所产生的噪声，适宜 和于验收测试和质量检查。
前言
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目录
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引用标准
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所属分类： 通信 广播 通信网 通信网性能指标及测试 电信 音频和视频技术 电信系统 线路 连接和电路
【英文标准名称】:Roadtransportandtraffictelematics.After-theftservicesfortherecoveryofstolenvehicles.Testprocedures
【原文标准名称】:道路运输和交通远程信息处理技术.被盗车辆复原用窃后系统.试验规程
【标准号】:BSDDCEN/TS15213-6-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-05-31
【实施或试行日期】:2011-05-31
【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】:
【英文主题词】:Anti-burglarmeasures;Codes;Crime;Dataelements;Dataexchange;Detection;Encoding;Identification;Informationtechnology;Locations;Messageinterchanges;Messages;Motorvehicles;Procurements;Recovery;Registration;Retrieval;Roadvehicles;Telematics;Theft;Vehicles
【摘要】:ThisdocumentspecifiestheTestCriteriaforafter-theftservicesfortherecoveryofstolenvehicles(ATSVR),andtheircontrolandusewithelectronicandelectromechanicalinhibitorcontrolequipmentutilisingbothconventionalswitchedoutputsand/orsoft-codedoutputsofsettingandunsettingdevices,detectors,warningdevicesandancillaryequipment,forfittingtovehiclesoperatingon12/24Vnegativeearthelectricalsystems.Therequirementsandtestsspecifiedinthisstandardenablereasonableassessmentofcomponentsperformancewithregardtosafety,reliability,functionality,securityanddocumentation.Toprovidereproducibletestmethodsandtoavoidtheproliferationoftechnicallysimilartestmethods,thetestprocedureshavebeenchosen,wherepossible,frominternationallyacceptedstandards.Forspecificguidanceonthesetests,referenceismadetotheappropriatedocument.Inthecontextofthetestprocedurestheterm"specimen(s)"shallrefertothecomponentorcomponentsoftheATSVRundertest.Toidentifytheteststhataretobeappliedtoeachtypeofcomponent,referenceshallbemadetothetable23inAnnexA1.ThedocumentassumesandrequiresthatallotherelectricalandradiostandardsrelevanttovehiclesarecompliedwithandshalltakeprecedentintheeventofconflictwithanyrequirementintheseATSVRrequirements.Thisdocumentisnotintendedtostifletechnicaldevelopmentorpreventtheuseofnewmethodsofdetection,communicationorimplementationappliedtoanATSVRdeviceorsystem.IntheeventthatanATSVRsystemusestechnologythatrendersanyofthetestscontainedinthisdocumentinappropriate(e.g.atechnologythatwasnotenvisagedwhenthestandardwasdeveloped)thenthe‘spirit’ratherthanthe‘letter’ofthestandardshouldapply.
【中国标准分类号】:R85
【国际标准分类号】:35_240_60
【页数】:62P.;A4
【正文语种】:英语
【英文标准名称】:Laminatedthermosettinghigh-pressuredecorativesheets
【原文标准名称】:叠层热固性高压装饰薄板
【标准号】:JISK6903-2007
【标准状态】:作废
【国别】:日本
【发布日期】:2007-01-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:TechnicalCommitteeonChemicalProducts
【标准类型】:()
【标准水平】:()
【中文主题词】:热固性聚合物;叠层板材;装饰材料;施工材料;运载工具部件;海船;塑料
【英文主题词】:
【摘要】:ThisStandardspecifiesthelaminatedthermosettinghigh-pressuredecorativesheets(hereafterreferredtoas"high-pressuredecorativelaminates").ThisStandardestablishesaclassificationsystemforhigh-pressuredecorativelami?natesaccordingtotheirperformanceandmainapplications(materialcharacteris?tics,forexample,postformabilityorreactiontofire).ThisStandardspecifiestherequireditemsoncharacteristicsofhigh-pressuredecorativelaminatesclassifiedbythissystem.Forseveralcharacteristics,morethanonetestmethodforcheckingtherequiredcharacteristicsisgiven.Amongthis,thealternativetestmethodwhichgivesapproximatelyequivalentresults,theexpensivetestmethodandonlyonetestmethodincertaincountriesareincluded.ThisStandardspecifiestherequiredcharacteristicsofcommonlyusedtypes,andothertypesshallbeinaccordancewiththeagreementbetweenthepartiesconcernedwithdelivery.Thespecifiedlimitvaluesshallapplytohigh-pressuredecorativelaminatescommonlyused,however,higherperformancelimitvaluesforeachclassificationmaybespecifiedinaccordancewiththeagreementbetweenthepartiesconcernedwithdelivery.Thehigh-pressuredecorativelaminatesshallbecharacterizedbytheirdecora?tivesurfaces,whicharerelativelyhardandhavingresistancetowear,scratch,impact,boilingwater,domesticstainsandmoderateheat,andclassifiedasfollows.—Ordinaryhigh-pressuredecorativelaminateoflessthan2mmthickhavingthinsingle-facedlaminatetobebondedtosubstrate—Thickhigh-pressuredecorativelaminateofapproximately2mmto5mmthickhavingsingle-ordouble-facedlaminatewhichneedstoberigidlysupportedbutnotnecessarilybebondedtosubstrate—Thickhigh-pressuredecorativelaminateofmorethan5mmthickhavingdouble-facedlaminatewhichdoesnotneedtobesupported.Thethicknessshallbeselectedaccordingtotheapplicationandthepaneldimensions.Thebacksurfaceofhigh-pressuredecorativelaminatewithsingle-decoratedsurfaceshallbemadesuitableforadhesivebondingtoasubstrate.
【中国标准分类号】:G33
【国际标准分类号】:83_140_20
【页数】:22P.;A4
【正文语种】:日语