ISO INTERNATIONAL STANDARD 23551-5 Second edition 2023-10 Safety and control devices for gas burners and gas-burning appliances . Particular requirements Part 5: Manual gas valves Dispositifs de commande et de sécurité pour bruleurs a gaz et appareils a gaz-Exigences particulieres - Partie 5: Robinets de gaz manuels Reference number IS0 23551-5:2023(E) ISO @ ISO 2023 IS0 23551-5:2023(E) COPYRIGHTPROTECTED 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 or ISoO's member body in the country of the requester. ISO copyright office CP 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email:copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2023- All rights reserved