ISO INTERNATIONAL STANDARD 14520-11 Third edition 2016-10-01 Gaseous fire-extinguishing systems Physical properties and system design Part 11: HFC 236fa extinguishant Systemes d'extinction d'incendie utilisant des agents gazeux Propriétes physiques et conception dessystemes- Partie11:AgentextincteurHFC236fa Reference number IS014520-11:2016(E) ISO @IS02016 IS0 14520-11:2016(E) COPYRIGHT PROTECTED DOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, 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, 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 @ IS0 2016 - All rights reserved IS014520-11:2016(E) Contents Page Foreword iv 1 Scope. 1 2 .1 Normative references 3 Terms and definitions .1 4 Characteristics and uses. 1 4.1 General 1 4.2 UseofHFC236fasystems. 2 5 Safety of personnel 5 6 System design, 6 Fill density 6.1 6 6.2 Superpressurization 7 6.3 Extinguishant quantity 7 Environmental properties 8 iii