【英文标准名称】:Cablenetworksfortelevisionsignals,soundsignalsandinteractiveservices-Part13:Opticalsystemsforbroadcastsignaltransmissions
【原文标准名称】:电视信号、声音信号和交互式服务用电缆网络.第13部分:广播信号传输用光学系统
【标准号】:IEC60728-13Corrigendum1-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-08
【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】:放大器;音频信号;分支导管;宽带系统;电缆分布系统;电缆电视系统;电缆网络;同轴电缆;连接器的连接件;定向耦合器;电气工程;绝缘子;交互式的;测量;测量技术;测量方法;多媒体;多路复接器;光学仪器;光波导;性能;特性;额定值;接收机;声音广播;声传输;规范(验收);叠加配件;电视广播;电视接收;发射机;电视信号;宽频带传输
【英文主题词】:Amplifiers;Audiosignals;Branchconduits;Broadbandsystems;Cabledistributionsystems;Cabletelevisionsystem;Cablednetworks;Coaxialcables;Connectoredjoints;Directionalcouplers;Electricalengineering;Insulators;Interactive;Measurement;Measuringtechniques;Methodsformeasuring;Multimedia;Multiplexers;Opticalinstruments;Opticalwaveguides;Performance;Properties;Ratings;Receivers;Soundbroadcasting;Soundtransmission;Specification(approval);Splicedfittings;Televisionbroadcasting;Televisionreception;Transmitters;Visionsignals;Widebandtransmission
【摘要】:
【中国标准分类号】:M60
【国际标准分类号】:33_060_40;33_180_01
【页数】:1P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsforStrengthPropertiesofPrefabricatedArchitecturalAcousticalTileorLay-InCeilingPanels
【原文标准名称】:预制建筑用隔音材料和镶入的天花板的强度的试验方法
【标准号】:ASTMC367/C367M-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E33.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:acousticalpanel;acousticaltile;friability;hardness;sag;strengthproperties;transversestrength;Acousticaltests;Friability(massloss);Hardnesstests;Sag;Strength--constructionmaterials/applications;Structuralanalysis/applications;Tr
【摘要】:Knowledgeofhardnessisusefulinthedevelopmentandthequalitycontrolofacousticaltileandlay-inceilingpanels.Deviationfromanestablishedhardnessrangewillassistinpointingoutprocessingerrorsordefectiverawmaterials,therebyaidingthemaintenanceofuniformproductquality.Thispropertyisalsousefulincomparingtherelativeabilitiesofmaterialstoresistindentationsonthepanelsurfacecausedbyimpacts.Sincethehardnessvarieswiththethickness,onlysamplesofthesamethicknessmaybedirectlycompared.1.1Thesetestmethodscoverthedeterminationofthestrengthpropertiesofprefabricatedarchitecturalacousticaltileorlay-inceilingpanelsasfollows:1.2Notallofthetestsdescribedinthesetestmethodsmaybenecessarytoevaluateanyparticularproductforaspecificuse.Ineachinstance,itwillbenecessarytodeterminewhichpropertiesarerequired.1.3Thesetestmethodsspecifyproceduresthatmaybeusedinproductdevelopment,manufacturingcontrol,specificationacceptance,andserviceevaluation.1.4Propertiesdeterminedbythesetestmethodsreflecttheperformanceofthematerialsunderthespecificconditionsofthetest,anddonotnecessarilyindicateperformanceunderconditionsotherthanthosespecifiedherein.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q25
【国际标准分类号】:91_120_20
【页数】:6P.;A4
【正文语种】:英语