ISO INTERNATIONAL STANDARD 11428 First edition 1996-12-15 Ergonomics -- Visual danger signals General requirements, design and testing Ergonomie - Signaux visuels de danger - Exigences generales, conception et essais ISO Reference number ISO 11428:1996(E) Copyright Intermational Organization for Standardization ovided by IHS rmitted without license from IHS Not for Resale ISO 11428:1996(E) Content Page Scope. 1 2 Normative references 1 3 Definitions 2 4 Safetyand ergonomicrequirements 2 4.1 General. 2 4.2 Detectability 3 4.3 Discriminality.. 5 4.4 Glare 6 4.5 Distance 6 4.6Duration. 9 5 Physicalmeasurements. 6 6 Subjective visual check 6 Annex A Bibliography 8 @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 OrganizationforStandardization Case Postale 56 . CH-1211 Geneve 20 Switzerland Printed in Switzerland Copyright Intermational Organization for Standardization y IHS unde Not for Resale @ISO ISO11428:1996(E) Foreword federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for represented onthatcommittee.International organizations.governmental and non-governmental, in liaison with IsO, also take part in the work. ISO coliaborates ciosely with the International Electrotechnical Commission (lEC)onallmattersofelectrotechnicalstandardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting avote. International Standard ISO 11428 was prepared by Technical Committee ISO/TC159,Ergonomics,SubcommitteeSC5,Ergonomicsof thephysical environment. The technical content of ISO 11428 and European Standard EN 842, Safety of machinery - Visual danger signals - General requirements, design and testing is identical. However, the limits of applicability of the of the International Standard into a European standard is not possible. EN 842 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 Copyriaht Intemational Oorganizatinfor Standardization I!!! Not for Resale