IEC IEC 60721-2-1 Edition 2.0 2013-06 NTERNATIONAL STANDARD NORME NTERNATIONALE colour inside Classification of environmental conditions - Part 2-1: Environmental conditions appearing in nature - Temperature and humidity Classification des conditions d'environnement - Partie 2-1: Conditions d'environnement presentes dans la nature - Temperature et humidite IEC 60721-2-1:2013 rial licer THISPUBLICATIONISCOPYRIGHTPROTECTED sedto Copyright @ 2013 IEC, Geneva, Switzerland BR All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by anymeans,electronic or mechanical, including photocopying and microfilm,without permission in writing from Den either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contacttheaddress beloworyourlocal IECmemberNational Committeeforfurther information. Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut etre reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans I'accord écrit de la CEl ou du Comité national de la CEi du pays du demandeur. Si vous avez des questions sur le copyright de la CEi ou si vous désirez obtenir des droits supplementaires sur cette publication, utilisez les coordonnées ci-apres ou contactez le Comité national de la CEl de votre pays de résidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varembé Fax: +41 22 919 03 00 CH-1211 Geneva 20 [email protected] Switzerland www.iec.ch Inc.. About the IEC su The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards forall electrical, electronicand related technologies. About IEC publications latest edition, a corrigenda oran amendment might have been published. Useful links: IECpublications search-www.iec.ch/searchpub Electropedia www.electropedia.org The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and downloaded on Nov. by a variety of criteria (reference number,text,technical electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in committee....). It also gives information on projects, replaced and additional languages. Also known as the International Electrotechnical Vocabulary (IEV) on-line. withdrawn publications. IEC Just Published -webstore.iec.ch/justpublished Customer Service Centre-webstore.iec.ch/csc Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication details all new publications released.Available on-line and or needfurtherassistance,please contact the Customer Service Centre: [email protected]. also once a month by email. A propos de la CEI La Commission Electrotechnique Internationale (CEl) est la premiere organisation mondiale qui élabore et publie des Madison. No A propos des publications CEl Le contenutechnique despublicationsde la CEl estconstamment revu.Veuillezvous assurerquevous possédez further Liens utiles: Recherche de publications CEl - www.iec.ch/searchpub Electropedia -www.electropedia.org Larechercheavancéevouspermetdetrouverdes Le premier dictionnaire en ligne au monde de termes publications CEl en utilisant differents criteres (numero de electroniques et electriques. Il contient plus de 30 000 uction reférence,texte,comite detudes,...) termes et définitions en anglais et en frangais, ainsi que Elle donne aussi des informations sur les projets et les lestermes équivalents dans leslangues additionnelles. or publications remplacées ou retirees. Egalement appelé Vocabulaire Electrotechnique International (VEl) en ligne. Just Published CEl-webstore.iec.ch/justpublished Service Clients - webstore.iec.c