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【英文标准名称】:Multicoreandsymmetricalpair/quadcablesfordigitalcommunications-Part1-2:Electricaltransmissioncharacteristicsandtestmethodsofsymmetricalpair/quadcables
【原文标准名称】:数字通信用多芯和对称二路/四路电缆.第1-2部分:对称二路/四路电缆的电气传输特性和测试方法
【标准号】:IEC/TR61156-1-2-2009
【标准状态】:现行
【国别】:国际
【发布日期】:2009-05
【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/SC46C
【标准类型】:()
【标准水平】:()
【中文主题词】:电缆结构;电缆护套;电缆;通信电缆;数据网络;数据传送;数字工程;数字信号;尺寸;电气工程;电气测试;阻抗;绝缘件;LAN;测量;测量技术;机械测试;多芯电缆;双股线;特性;回程损耗;护套电缆;规范;规范(验收);对称的;通信;电信;试验;传输;传输特性;布线
【英文主题词】:Cableconstruction;Cablesheaths;Cables;Communicationcables;Datanetwork;Datatransfer;Digitalengineering;Digitalsignals;Dimensions;Electricalengineering;Electricaltesting;Impedance;Insulations;LAN;Measurement;Measuringtechniques;Mechanicaltesting;Multicorecables;Pairsofwires;Properties;Returnloss;Sheathedcables;Specification;Specification(approval);Symmetrical;Telecommunication;Telecommunications;Testing;Transmission;Transmissioncharacteristics;Wiring
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:33_120_20
【页数】:46P;A4
【正文语种】:英语


【英文标准名称】:Imagingmaterials-Processedphotographicplates-Storagepractices
【原文标准名称】:成像材料处理过的照相干版储存规程
【标准号】:ISO18918-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC42
【标准类型】:()
【标准水平】:()
【中文主题词】:记录媒体;数字;测定;摄影胶片;照相干版;条件;摄影;摄影材料;储存;记录
【英文主题词】:Conditions;Determination;Figures;Photographicfilm;Photographicmaterials;Photographicplates;Photography;Recording;Recordingmedia;Storage
【摘要】:1ThisInternationalStandardspecifiesdarkstorageconditions,storagefacilities,andhandlingandinspectingproceduresforprocessedphotographicplateshavingintegralphotographiclayersandintendedforrecordpurposes.2ThisInternationalStandardisapplicabletoblack-and-white,silver-image,gelatin,processedphotographicplatesasdefinedin3.7.7.Itisalsoapplicabletomedium-termandextended-termstorageconditionsasdefinedin3.6and3.2,respectively.Nospecificdistinctionismade,otherthanthedegreeofcare,betweenphotographicplatesformedium-termorextended-termstorage.Recommendationsforplatestoragerelatetomaterials,methods,conditions,andformsofprotectionapplicablespecificallytoplatesdefinedin1.1.However,thesestoragerecommendationsmayalsobeappliedtolacqueredandopaqueplates,toblack-and-whiteplatesalteredbydyesortoners,colourplatesandotherhistoricphotographicplatesdefinedin3.7.2to3.7.8.3ItisnotintendedtopredictorassignausefullifetimetoprocessedphotographicplatesstoredinaccordancewiththespecificationsofthisInternationalStandard.4RecommendationsforstorageofphotographicfilmsaregiveninISO18911andforstorageofprocessedphotographicreflectionprintmaterialinISO18920.Althoughthereissomevariationinrecommendedstorageconditionsamongthesetypesofphotographicmaterials,recommendedtemperatureandrelativehumidityrangesdooverlap.Ifallthreetypesofphotographicmaterialsarefoundinonecollectionorwithinonestoragearea,thetemperatureandrelativehumidityshouldbechosensothatallmaterialsarestoredwithintheirrecommendedranges.
【中国标准分类号】:A17
【国际标准分类号】:37_040_20
【页数】:20P.;A4
【正文语种】:英语