International ISO Standard ISO 4437-3 Plastics piping systems for Second edition the supply of gaseous fuels 2024-02 Polyethylene (PE) - Part 3: Fittings Systemes de canalisations en plastique pour la distribution de combustibles gazeux - Polyéthylene (PE) - Partie 3: Raccords Referencenumber IS0 4437-3:2024(en) @ ISO 2024 IS0 4437-3:2024(en) COPYRIGHT PROTECTED DOCUMENT @IS02024 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 theinternet or an intranet, withoutprior writtenpermission.Permission can berequestedfrom eitherIso attheaddress below or Iso's member body in the country ofthe requester ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland @ IS0 2024 - All rights reserved ii