【英文标准名称】:Classificationofenvironmentalconditions-Part3:Classificationofgroupsofenvironmentalparametersandtheirseverities-Section2:Transportation
【原文标准名称】:环境条件分类第3-2部分:环境参数组及其严酷程度的分类分级运输
【标准号】:IEC60721-3-2-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-03
【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/TC104
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;气候;环境影响;锐度;环境条件;影响量;极限(数学);参数;分类系统;环境;环境试验;传输;风化;分类;运输
【英文主题词】:Biological;Chemical;Chemicalproperties;Classification;Classificationsystems;Climate;Definitions;Degreeofsharpness;Electricalengineering;Environment;Environmentalcondition;Environmentalconditions;Environmentaleffects;Environmentalfactorofinfluence;Environmentaltesting;Ergonomics;Influencequantity;Limits(mathematics);Loading;Mechanic;Mechanicalproperties;Parameters;Transport;Transportation;Unloading;Weathering
【摘要】:ThissectionofIEC60721-3classifiesthegroupsofenvironmentalparametersandtheirseveritiestowhichaproductissubjectedwhilebeingtransportedfromoneplacetoanotherafterbeingmadereadyfordispatchfromthemanufacturingfactory.Themostcommonlyusedmethodsoftransportationhavebeentakenintoaccount,includingthefollowing:-roadtransport:cars,lorries,trucks,animals,conveyors;-railtransport:trains,trams,conveyors;-watertransport,inlandandmaritime:ships,hovercraft,conveyors;-airtransport:aircraft,conveyors;-verticaltransport:cranes,transportlifts,cableways.Theenvironmentalconditionsspecifiedinthissectionarethosemetbytheproductbeingtransported.Iftheproductispacked,theenvironmentalconditionsapplytothepackagecontainingtheproduct.Onlysevereconditions,whichmaybeharmfultoproducts,areincluded.ConditionsforstorageandusearegiveninothersectionsofIEC721-3.Theobjectofthisstandardistoclassifygroupsofenvironmentalparametersandtheirseveritiestowhichaproductwillbeexposedwhenbeingtransportedonground,waterandinair,includingloadingandunloading.Alimitednumberofclassesofenvironmentalconditionsaregiven,coveringabroadfieldofapplication.Theuserofthisstandardshouldselectthelowestclassesnecessarycoveringeachoftheconditionsoftheintendedtransportation.SomeguidanceforthisisgiveninannexA.
【中国标准分类号】:A21
【国际标准分类号】:19_040
【页数】:46P.;A4
【正文语种】:英语


【英文标准名称】:Methodsofmeasurementonradioreceiversforvariousclassesofemission;part4:radio-frequencymeasurementsonreceiversforfrequencymodulatedsound-broadcastingemissions;identicalwithIEC60315-4:1982(statusasof1989)
【原文标准名称】:各种发射类别的无线电接收机的测量方法.第4部分:调频声音广播接收机的射频测量
【标准号】:DINIEC60315-4-1991
【标准状态】:作废
【国别】:德国
【发布日期】:1991-07
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:干扰抑制;频率测量;无线电工程;信号失真;定义;声音广播;测量技术;广播;电失真;测量;电气工程;射频;无线电接收机;甚高频;甚高频;试验;广播接收机;接收机;调频;灵敏度;音频;乱真信号
【英文主题词】:
【摘要】:
【中国标准分类号】:M36;M74
【国际标准分类号】:33_160_20
【页数】:43P;A4
【正文语种】:德语