UL 1323-2007 脚手架提升机

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【英文标准名称】:Cablenetworksfortelevisionsignals,soundsignalsandinteractiveservices-Part4:Passivewidebandequipmentforcoaxialcablenetworks(IEC60728-4:2007);GermanversionEN60728-4:2008
【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4部分:同轴电缆网络用无源宽带设备
【标准号】:DINEN60728-4-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-11
【实施或试行日期】:2008-11-01
【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】:音频信号;分支电路;宽带;宽带网络;宽带系统;电缆分布系统;电缆电视;电缆分配系统;电缆网络;共用天线电视;公共天线电视;同轴电缆;通信链;连接电缆;接线箱;连接件;阻尼(波);数据记录;退耦;定义;失真;分配器;电气工程;频率范围;等级(质量);交互式的;互相调制;测量;测量技术;计量学;标准化组件;调制;性能要求;额定值;接收机;回程损耗;信号;声音广播;规范(验收);用户台;电视广播;电视接收;终端装置;电视信号;宽频带传输
【英文主题词】:Audiosignals;Branchconduits;Broadband;Broadbandnetwork;Broadbandsystems;Cabledistributionsystems;Cabletelevision;Cableddistributionsystems;Cablednetworks;CATV;Central-antennatelevision;Coaxialcables;Communicationchains;Connectingcables;Connectionboxes;Connections;Damping;Datarecording;Decoupling;Definition;Definitions;Distortion;Distributors;Electricalengineering;Frequencyranges;Grades(quality);Interactive;Intermodulation;Measurement;Measuringtechniques;Metrology;Modularunits;Modulation;Performancerequirements;Ratings;Receivers;Returnloss;Signals;Soundbroadcasting;Specification(approval);Subscriber'sstation;Televisionbroadcasting;Televisionreception;Terminaldevices;Visionsignals;Widebandtransmission
【摘要】:
【中国标准分类号】:M62
【国际标准分类号】:33_060_40
【页数】:42P.;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforColorimetricDeterminationofp-tert-ButylcatecholInStyreneMonomerorAMS(alpha-Methylstyrene)bySpectrophotometry
【原文标准名称】:用分光光度法测定苯乙烯单体中对一叔丁基邻苯二酚的比色标准试验方法
【标准号】:ASTMD4590-2009
【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】:D16.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:alpha-methylstyrene;AMS;para-tertiarybutylcatechol;PTBC;styrene,inhibitorcontent;styrene,TBCcontent;TBCinstyrene;Spectrophotometry--atomicabsorption(paints/relatedcoatings);AMS(&alph;-Methylstyrene);Butylcatecholinhibitorcontent;In
【摘要】:ThistestmethodissuitablefordeterminingthequantityofTBCinhibitor,bothfortheprotectionagainstpolymerizationwhileintransitandstorage,andforinternalqualitycontrol.1.1Thistestmethodisapplicabletothedeterminationofresidual4-tertiary-butylcatechol(TBC)instyrenemonomerorAMSinthe1to100ppm(mg/kg)range.Anyothercompoundproducingcolorat490nmwhencontactedwithaqueoussodiumhydroxidesolutionwillinterfere.Itmaybecompensatedforbyincludingitinthepreparationofthestandardsolutions,ifitsidentityandconcentrationinthesampleareknown.1.2Indeterminingtheconformanceofthetestresultsusingthismethodtoapplicablespecifications,resultsshallberoundedoffinaccordancewiththerounding-offmethodofPracticeE29.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificstatementsonhazards,seeSection8.
【中国标准分类号】:G16
【国际标准分类号】:17_180_20
【页数】:3P.;A4
【正文语种】:英语