ISO INTERNATIONAL STANDARD 11429 First edition 1996-12-15 Ergonomics System of auditory and visual danger and information signals Ergonomie-Systeme de signaux auditifs et visuels de danger et d'information ISO Reference number ISO 11429:1996(E) Copyright Intemational Organization for Standardization dbyIHS Not for Resale ISO11429:1996(E) Contents Page Scope 1 2 Normative references 1 3 Definitions 2 4 Ergonomic principles for the design and application of auditory and visual signals 2 4.1 General 2 4.2 Principles for distinctive characters.. 3 4.3 Qualities of auditory signals 3 4.4 Qualities of visual signals 3 Systems of auditory and visual signals. 3 5.1 Scheme of purpose and character 3 5.2 Scheme of auditory signal character 4 5.3 Scheme of visual signal colours 4 6 Testing.. 4 Annex A Bibliography 7 @ISO1996 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 the publisher. International Organization for Standardization CasePostale 56.CH-1211Geneve20.Switzeriand Printed in Switzerland i termnational Organization for Standardizatior No reproduction or networking permited without license from IHS Not for Resale @ ISO ISO11429:1996(F) Foreword IsO (the International Organization for Standardization) is a worldwide preparing Internationai Standards is normally carried out through IsO technicalcommittees.Eachmemberbodyinterestedinasubjectfor which a technical committee has been established has the right to be represented on that committee.International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnicai standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an internationai Standard requires approval by at least 75 % of the member bodies casting a vote. ISO/TC 159,Ergonomics,Subcommittee SC 5,Ergonomicsof thephysical environment. The technical content of ISO 11429 and European Standard EN 981, Safety of machinery System of auditory and visual danger and information signals, is identical. However, the limits of applicability of the of the International Standard into a European standard is not possible. EN 981 was prepared in order to fulfil the Council Directive on essential health and safety requirements relating to the design and construction of machinery and therefore the applicability of the European standard is restrictedtothisDirective. Annex A of this International Standard is for information only. iii Copyright International Organization for Standardization Not for Resale