IEC IEC62990-1 Edition 1.02019-06 INTERNATIONAL STANDARD NORME NTERNATIONALE colour inside Workplace atmospheres- Part 1: Gas detectors - Performance requirements of detectors for toxic gases Atmospheres des lieux de travail - Partie 1: Detecteurs de gaz - Exigences d'aptitude a la fonction des detecteurs de gaz toxiques IEC62990-1:2019-06(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2019 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from eitherIEC or IEC's memberNational Committee in the country of therequester.If youhave any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, piease contact the address below or your local IEC member National Committee for further information. 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 I'IEc ou du Comite national de I'lEC du pays du demandeur. Si vous avez des questions sur le copyright de I'lEC ou si vous desirez obtenir des droits supplementaires sur cette publication, utilisez lescoordonnées ci-apresou contactezleComiténational de Il'lEC de votrepays de residence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varembé info@iec.ch CH-1211 Geneva 20 www.iec.ch Switzerland About theIEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigendum or an amendment might have been published. IECpublicationssearch-webstore.iec.ch/advsearchform Electropedia - www.electropedia.org The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology, variety ofcriteria (referencenumber,text, technical containing more than 22 000 terminological entries in English committee,..). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages. and withdrawn publications. Also known as the International Electrotechnical Vocabulary (IEV) online. IEc JustPublished-webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published IEc Glossary - std.iec.ch/glossary details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and once a month by email. French extracted from the Terms and Definitions clause of IEC publications issued since2002.Some entries have been IEc Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37,77,86 and If you wish to give us your feedback on this publication or CISPR. needfurtherassistance,pleasecontacttheCustomerService Centre:sales@iec.ch. Aproposde IIEC La Commission Electrotechnique Internationale (lEC) est la premiere organisation mondiale qui élabore et publie des Normes internationales pour tout ce qui a trait a I'électricite, a i'électronique et aux technologies apparentees. AproposdespublicationsIEc Le contenu technique des publications IEc est constamment revu.Veuillez vous assurer que vous possédez I'édition la plus recente, un corrigendum ou amendement peut avoir éte publie. RecherchedepublicationsIEC - Electropedia-www.electropedia.org webstore.iec.ch/advsearchform Le premier dictionnaire d'électrotechnologie en ligne au Larechercheavanceepermetdetrouverdespublications IEC monde,avec plus de 22 000 articles terminologiques en en utilisant differents criteres (numero de reference,texte, anglais et en francais,ainsi que les termes équivalents dans comite d'etudes,...). El