【英文标准名称】:TransmissionandMultiplexing(TM)-Genericrequirementsoftransportfunctionalityofequipment-Part3-1:SynchronousTransportModuleN(STM-N)regeneratorandmultiplexsectionlayerfunctions(EndorsementoftheEnglishversionEN300417-3-1V1.2.1
【原文标准名称】:传输和多路复用(TM).设备传输功能性的一般要求.第3-1部分:同步传输模快N(STM-N)再生器和多路传输分区层功能(英文版本核准本EN300417-3-1V1.2.1(2001-10)作为德国标准)
【标准号】:DINEN300417-3-1-2002
【标准状态】:现行
【国别】:德国
【发布日期】:2002-06
【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】:传输技术;多路复用;合格;传输系统;数字信号;物理层;无线电工程;规范(验收);远程通信;接口;传输特性;电气工程
【英文主题词】:Conformity;Digitalsignals;Electricalengineering;Interfaces(dataprocessing);Multiplex;Physicallayers;Radioengineering;Specification(approval);Telecommunication;Telecommunications;Transmissioncharacteristics;Transmissionsystems;Transmissiontechnique
【摘要】:ThedocumentdealswiththefunctionsoftheSTM-Nregeneratorandmultiplexsectionlayerfordigitaltransmissionequipment.
【中国标准分类号】:M11
【国际标准分类号】:33_040_20
【页数】:1P.;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforDeterminingLogarithmicViscosityNumberofPoly(VinylChloride)(PVC)inFormulatedCompounds
【原文标准名称】:测定按配方制造的化合物中聚氯乙烯对数粘度值的标准试验方法
【标准号】:ASTMD3591-1997(2003)
【标准状态】:现行
【国别】:
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:塑料;工艺;粘度值;测定;聚氯乙烯
【英文主题词】:formulations;logarithmicviscositynumber;poly(vinylchloride);PVC
【摘要】:ThelogarithmicviscositynumberprovidesinformationontheeffectofcompoundingorprocessingofPVC.ExposureofPVCcompositionstoshearortohightemperaturescanresultinachangeinthelogarithmicviscositynumberoftheresin.1.1Thistestmethodcoversthedeterminationofthelogarithmicviscositynumberofpoly(vinylchloride)(PVC)homopolymersaftercompoundingorprocessing.1.2Itisthebasicassumptionofthistechniquethattheformulationofthecompoundedresinisknownandthatanyadditivespresentcanbeseparatedfromtheresinbyextractionwithdiethylether.Thisisnecessarytopermitadjustmentoftheamountofsampleusedinthetesttogivearesinconcentrationincyclohexanoneof0.2177;0.002g/100mL.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificprecautionarystatementsaregivenin7.3and8.4.1.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:4P.;A4
【正文语种】: