ASTM D5901-2003 航空燃料凝固点的标准试验方法(自动光学方法)
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来源:标准资料网
【英文标准名称】:StandardTestMethodforFreezingPointofAviationFuels(AutomatedOpticalMethod)
【原文标准名称】:航空燃料凝固点的标准试验方法(自动光学方法)
【标准号】:ASTMD5901-2003
【标准状态】:作废
【国别】:
【发布日期】:2003
【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】:D02.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:石油产品;烃类;冻结点;试验;航空燃料;航空燃气
【英文主题词】:automatedfreezingpoint;aviationgasoline;aviationturbinefuels;freezingpoint
【摘要】:Thefreezingpointofanaviationfuelisanindexofthelowesttemperatureofitsutilityforcertainapplications.Solidhydrocarboncrystalscanrestricttheflowoffuelinthefuelsystemoftheaircraft.Thetemperatureofthefuel
【中国标准分类号】:E31
【国际标准分类号】:49_025_99;75_160_20
【页数】:7P.;A4
【正文语种】:
【英文标准名称】:VC-1VideoSystemsandTransportConstraintsforCableTelevision
【原文标准名称】:有限电视用VC-1视频系统和传输限制
【标准号】:ANSI/SCTE157-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电缆通信;电缆电视;电缆分配系统;编码;压缩;分布系统;MPEG;多路复用;服务设施;流;传输;运输;VC;视频
【英文主题词】:Cablecommunication;Cabletelevision;Cableddistributionsystems;Coding;Compression;Distributionsystems;MPEG;Multiplex;Services;Stream;Transmission;Transport;VC;Video
【摘要】:ThisdocumentdefinesthevideocodingandtransportconstraintsonSMPTE421M[5]videocompression(hereaftercalled"VC-1")forCableTelevision.Inparticular,thisdocumentdescribesthetransmissionofVC-1codedvideoelementarystreamsinanMPEG-2servicemultiplex(singleormulti-programTransportStream).
【中国标准分类号】:M63
【国际标准分类号】:33_060_40
【页数】:
【正文语种】:英语
【英文标准名称】:Uninterruptiblepowersystems(UPS)-Part3:Methodofspecifyingtheperformanceandtestrequirements
【原文标准名称】:不间断电源系统(UPS)第3部分:规定性能的方法和试验要求
【标准号】:IEC62040-3-1999
【标准状态】:作废
【国别】:国际
【发布日期】:1999-03
【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/SC22B
【标准类型】:()
【标准水平】:()
【中文主题词】:供应;连续的;蓄电池供电;可不中断的;连续;电驱动装置;使用特性;存储设备;使用条件;测量要求;电能;电力系统;定义;电气工程;直流电流;性能;;;特性;交流电流;电子设备及元件;检验;规范(验收);工作性能;效率;试验;质量
【英文主题词】:Accumulatordevices;Alternatingcurrent;Alternatingpowers;Batterieoperation;Continuous;Definitions;Directcurrent;Efficiency;Electricenergy;Electricpowersystems;Electricalengineering;Electrically-operateddevices;Electronicequipmentandcomponents;Inspection;Messages;Operatingconditions;Operatingproperties;Performance;Performanceinservice;Properties;Quality;Specification(approval);Supply;Testrequirements;Testing;Uninterruptable
【摘要】:Thisstandardappliestoelectronicindirecta.c.convertersystemswithelectricalenergystoragemeansinthed.c.link.Theprimaryfunctionoftheuninterruptiblepowersystem(UPS)coveredbythisstandardistoensurecontinuityofanalternatingpowersource.Theuninterruptiblepowersystemmayalsoservetoimprovethequalityofthepowersourcebykeepingitwithinspecifiedcharacteristics.Avarietyofuninterruptiblepowersystemshavebeendevelopedtomeetconsumers'requirementsforcontinuityandqualityofpowerfordifferenttypesofloadsoverawiderangeofpower,fromlessthan100Wtoseveralmegawatts.RefertoannexesAandBforinformationonsomeofthetypesavailable.Thisstandardappliestoelectronicuninterruptiblepowersystems(UPS):a)deliveringsingle-orthree-phasefixedfrequencya.c.outputvoltage;b)withenergystoragedeviceinthed.c.linkifnototherwisespecified;c)withratedvoltagenotexceeding1000Va.c.;d)movable,stationaryand/orfixedequipment.ThisstandardalsoincludesthemethodofspecifyingallpowerswitchesthatformintegralpartsofaUPSandareassociatedwithitsoutput.Includedareinterrupters,bypassswitches,isolatingswitches,loadtransferswitchesandtieswitches.TheseswitchesinteractwithotherfunctionalunitsoftheUPStomaintaincontinuityofloadpower.Thisstandarddoesnotrefertoconventionalmainsdistributionboards,rectifierinputswitchesord.c.switches(forexampleforbatteries,rectifieroutputorinverterinput,etc.),orUPSbasedonrotatingmachines.NOTE1-ThisstandardrecognizesthatthemajormarketusagewiththeUPSratingswithinitsscopeisinconjunctionwithinformationtechnologyequipment.Undercurrenttechnology,themajorityofUPSloadequipmentemployspowersupplieswhichpresentanon-linearloadtotheUPSandcanbetolerantofnon-sinusoidalvoltagewaveformsforalimitedtimeduration.UPSoutputratingsarespecifiedtobecompatiblewithnon-linearloadingandlinearloading,subjecttomanufacturers'declarationifdifferent.Referenceswithinthisstandardtolinearloadingareretainedfortestmethodreasons,orvalidationofmanufacturers'additionaldeclaration.NOTE2-ForuseofUPSwithanon-sinusoidaloutputvoltagewaveform,beyondthestored-energytimerecommendedinthisstandard,theagreementoftheloadequipmentmanufacturershouldbesought.NOTE3-ForUPSoutputfrequenciesotherthan50Hzor60Hz,performancespecificationissubjecttoagreementbetweenmanufacturerandpurchaser.ThisstandardisintendedtodefineacompleteuninterruptiblepowersystemintermsofitsperformanceandnotindividualUPSfunctionalunits.TheindividualUPSfunctionalunitsaredealtwithintheIECpublicationsreferredtointhebibliographygiveninannexI,whichapplyinsofarastheyarenotincontradictionwiththisstandard.
【中国标准分类号】:F20
【国际标准分类号】:29_160_40
【页数】:203P.;A4
【正文语种】:英语
