ISO INTERNATIONAL STANDARD 7240-7 Fourth edition 2023-07 Fire detection and alarm systems Part 7: Point-type smoke detectors using scattered light, transmitted light or ionization Systemes de détection et d'alarme d'incendie Partie 7: Deétecteurs de fumée ponctuels utilisant le principe de la diffusion de la lumiere, de la transmission de la lumiere ou de l'ionisation Reference number ISO 7240-7:2023(E) IS02023 IS0 7240-7:2023(E) COPYRIGHT PROTECTED DOCUMENT @IS02023 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either Iso at the address below or ISO's member body in the country of the requester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland ii @IS0 2023 - All rights reserved