ISO INTERNATIONAL STANDARD 14114 Third edition 2017-11 Gas welding equipment Acetylene manifold systems for welding, cutting and allied processes General requirements Materiel de soudage aux gaz - Centrales de deétente pour la distribution d'acétylene pour le soudage, le coupage et les techniques connexes-Exigences generales Reference number IS014114:2017(E) ISO @IS02017 IS014114:2017(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2017, Published in Switzerland 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org i IS02017-Allrightsreserved IS0 14114:2017(E) Contents Page Foreword iv 1 Scope. 1 2 Normative references 1 3 Terms and definitions 4 Design and materials .4 4.1 Requirementsforthemanifoldsystemanditscomponents. 4 4.2 Materials of construction 5 5 Tests 5 5.1 Strengthtest 5 5.2 External gas tightness test. 5 5.3 Decomposition blocker. 5 6 Marking 6 7 Instructions for use 6 7 AnnexA(normative)Configurationsofacetylenemanifold systems Annex B (normative) Acetylene decomposition test procedure for decomposition blocker .12 IS0 2017-All rights reserved iii