IEC IEC 60050-872 Edition 1.02022-09 NTERNATIONAL STANDARD NORME INTERNATIONALE HORIZONTAL PUBLICATION PUBLICATION HORIZONTALE International Electrotechnical Vocabulary (lEV) - Part 872: Accessibility Vocabulaire Electrotechnique International (IEV) - Partie 872: Accessibilite THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2022 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 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, piease contact the address below or your local IEC member National Committee for further information. et les microfilms, sans I'accord écrit de I'IEC ou du Comite national de I'IEC 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 les coordonnees ci-apres ou contactez le Comite national de I'lEC de votre pays de residence. IEC Secretariat Tel.: +41 22 919 02 11 3, rue de Varembé [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland Aboutthe IEC International Standards for all electrical, electronic and related technologies. AboutIEpublications The technical content of IEC publications iskeptunder constantreviewby the IEC.Please make sure that you have the latest edition, a corrigendum or an amendment might have been published. IEc publications search - webstore.iec.ch/advsearchform IEc Products & Services Portal - products.iec.ch The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the variety ofcriteria(referencenumber,text, technical publications previews. With a subscription you will always committee, ...). It also gives information on projects, replaced have access to up to date content tailored to your needs. and withdrawn publications. Electropedia-www.electropedia.org IEc Just Published - webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology, Stay up to date on all new IEC publications. Just Published containing more than 22 300 terminological entries in English details all new publications released. Available online and and French, with equivalent terms in 19 additional languages. once a month by email. Also known as the International Electrotechnical Vocabulary (IEV) online. IEC Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or needfurtherassistance,please contactthe CustomerService Centre: [email protected]. A propos de I'IEc La Commission Electrotechnique Internationale (lEC)est lapremiere organisation mondiale qui élabore et publie des Normes internationales pour tout ce qui a trait a I'electricite, a F'electronique et aux technologies apparentees. A propos des publications IEC Le contenu technique des publications IEC est constamment revu.Veuillezvous assurerque vous possedez I'éedition la plusrécente,un corrigendum ou amendementpeutavoiréte publie IEc Products & Services Portal - products.iec.ch Recherche de publications IEC webstore.iec.ch/advsearchform Découvrez notrepuissant moteurderecherche et consultez La recherche avancee permet de trouver des publications IEC gratuitement tous les apercus des publications.Avec un abonnement, vous aurez toujours acces a un contenu a jour en utilisant differents criteres (numero de reference, texte, comite d'études, ...). Elle donne aussi des informations sur adapte a vos besoins. lesprojets et lespublications remplacees ou retirees Electropedia-www.electropedia.org IECJustPublished-webstore.iec.ch/justpublished Le premier dictionnaire d'electrotechnologie en ligne au Restez informe sur les nouvelles publications I IEC Just monde,avec plus