ISO/TS TECHNICAL SPECIFICATION 19883 First edition 2017-03 Safety of pressure swing adsorption systems for hydrogen separation and purification Systeme d'adsorption modulee en pression pour la separation et la purification de I'hydrogene Reference number ISO/TS 19883:2017(E) International Organization for Standardization @ IS0 2017 e=ZHEJIANG INSTOF STANDARDIZATION C1 5956617 vided by IHS under I ted without license from IHS IS0/TS 19883:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, 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 Licensee-ZHEJIANG INST OF STANDARDIZAISQ 07 - All rights reserved Not for Resale, 2017/5/16 00:37:4 networking permited without license from IHS IS0/TS 19883:2017(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Basic specification .3 4.1 Feed stream pressure. .3 4.2 Working temperature ..4 4.3 Assembly 4 4.4 Material properties. ..4 4.4.1 Feed stream pressure 4 4.4.2 Working temperature. 4 5 Safety requirements of the PSA system ..4 5.1 General hazards associated with the PSA system. .4 5.1.1 General hazards associated with hydrogen gas .4 5.1.2 General hazards associated with system leakage 4 5.1.3 Hazards related to pressure. 4 5.1.4 Hazards related to ignition of hydrogen .5 5.2 Safety specifications in the field. .5 5.2.1 General hazards. .5 5.2.2 Layout considerations. 5 5.2.3 Buildings and ventilation. .5 5.2.4 Explosion-proof area and explosion-proof grade 6 5.2.5 Electrostatic grounding. ..7 5.2.6 Flammable and toxic gas detection alarm 7 5.3 Safety specifications of equipment and piping .8 5.3.1 General specification. .8 5.3.2 Safety specifications of adsorbers .8 5.3.3 Safety specifications of the buffer tank ..9 5.3.4 Safety specifications of process control valves .9 5.3.5 Safety specifications of piping.. 5.3.6 Safety considerations for operations and maintenance 10 5.3.7 Safety specifications of inspection and test. 10 5.3.8 Safety specifications of electrical equipment ..11 5.3.9 Safety specifications of monitoring devices ..12 Annex A (informative) Example of potential locations of relief valves. ..14 Bibliography .15 ii censee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS under lic d without license from IHS Not for Resale, 2017/5/16 00:37:44