ISO INTERNATIONAL STANDARD 9809-3 Third edition 2019-08 Gas cylinders Design, construction and testing of refillable seamless steel gas cylinders and tubes - Part 3: Normalized steel cylinders and tubes Bouteilles a gaz - Conception, construction et essais des bouteilles a gaz et des tubes rechargeables en acier sans soudure Partie 3: Bouteilles et tubes en acier normalise wiel pllteu) Reference number IS0 9809-3:2019(E) @ IS0 2019 IS0 9809-3:2019(E) 11AI IA lellcy COPYRIGHTPROTECTEDDOCUMENT @ISO2019 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 below or IsO's member body in the country of the requester. AACNIN ISO copyright office CP 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Kn Phone:+41227490111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS 2019 -All rights reserved