1、NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD60721-3-0Edition 1.12002-10Classification des conditions denvironnement Partie 3:Classification des groupements des agentsdenvironnement et de leurs svrits IntroductionClassification of environmental conditions Part 3:Classification of groups of environm
2、entalparameters and their severities IntroductionNumro de rfrenceReference numberCEI/IEC 60721-3-0:1984+A1:1987Edition 1:1984 consolide par lamendement 1:1987Edition 1:1984 consolidated with amendment 1:1987Copyright International Electrotechnical Commission Provided by IHS under license with IECNot
3、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-Numrotation des publicationsDepuis le 1er janvier 1997,les publications de la CEIsont numrotes partir de 60000.Ainsi,la CEI 34-1devient la CEI 60034-1.Editions consolidesLes versions consolides de certaines publications
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10、EC publications areissued with a designation in the 60000 series.Forexample,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editionsThe IEC is now publishing consolidated versions of itspublications.For example,edition numbers 1.0,1.1and 1.2 refer,respectively,to the base publication,the bas
11、e publication incorporating amendment 1 andthe base publication incorporating amendments 1and 2.Further information on IEC publicationsThe technical content of IEC publications is keptunder constant review by the IEC,thus ensuring thatthe content reflects current technology.Informationrelating to th
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13、 the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publicationsThe on-line catalogue on the IEC web site(http:/www.iec.ch/searchpub/cur_fut.htm)enablesyou to search by a variety of criteria including textsearches,technical committees and da
14、te ofpublication.On-line information is also availableon recently issued publications,withdrawn andreplaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(http:/www.iec.ch/online_news/justpub/jp_entry.htm)is also available by email.Please contact t
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16、ical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD60721-3-0Edition 1.12002-10Classification des conditions denvironnement Partie 3:Classification des groupements des agentsdenvironnement et de leurs svrits IntroductionClassification of environmental conditions Part 3:Classification of groups of environmentalparameters and their severities IntroductionPour prix,voir
