ISO INTERNATIONAL STANDARD 23553-1 Third edition 2022-02 Safety and control devices for oil burners and oil-burning appliances - Particular requirements Part 1: Automatic and semi-automatic valves Dispositifs de commande et de securite pour bruleurs a combustible liquide et pour appareils a combustible liquide -Exigences particulieres Partie 1: Robinets automatiques et semi-automatiques Reference number IS0 23553-1:2022(E) ISO @IS02022 IS0 23553-1:2022(E) COPYRIGHT PROTECTED DOCUMENT @ISO2022 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, withoutpriorwrittenpermission.Permission can berequestedfrom eitherIso at theaddress below orIso'smemberbodyinthecountryoftherequester. 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 2022 - All rights reserved