ISO INTERNATIONAL STANDARD 16111 Second edition 2018-08 Transportable gas storage devices Hydrogen absorbed in reversible metal hydride Appareils de stockage de gaz transportables - Hydrogene absorbe dans un hydrure métallique réversible Reference number ISO 16111:2018(E) os1 @ IS0 2018 ut license from IHS Not for Resale, 09/03/2018 17:07:11 MDT IS0 16111:2018(E) COPYRIGHTPROTECTEDDOCUMENT @IS02018 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. ISO copyright office CP401·Ch.deBlandonnet8 CH-1214 Vernier, Geneva Phone:+4122 749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland @ IS0 2018 - All rights reserved Not for Resale, 09/03/2018 17:07:11 MDT IS0 16111:2018(E) Contents Page Foreword ..V Introduction. ...vi 1 Scope. 2 Normative references 3 Terms and definitions 4 Service conditions ..4 4.1 Pressures. .4 4.1.1 Maximum developed pressure (MDP) ..4 4.1.2 Rated charging pressure (RCP) .4 4.1.3 Stress level at MDP ..4 4.2 Rated capacity. 4 4.3 Temperature ranges .5 4.3.1 Operating temperature range .5 4.3.2 Service temperature range. .5 4.4 Environmental conditions. .5 4.5 Service life. 5 4.6 Hydrogen quality .5 4.7 Special service conditions ..5 5 Design considerations 5 5.1 General. 5.2 Material selection .5 5.2.1 General. 5.2.2 External surfaces .6 5.2.3 Compatibility ..6 5.2.4 Temperature. .6 5.3 Shell design .6 5.3.1 Shells with internal volume greater than 120 ml .6 5.3.2 Shells with internal volume of 120 ml or less .7 5.4 Design strength. .7 5.5 Overpressure and fire protection. .7 5.5.1 General 5.5.2 PRD activation pressure. .8 5.5.3 PRD activation temperature. 5.6 Loading of hydrogen absorbing alloy ..8 5.7 Shut-off valves. ..8 5.7.1 General ..8 5.7.2 MH assemblies with internal volume greater than 120 ml .8 5.7.3 MHassemblieswithinternalvolumeof120mlorless .9 5.7.4 Integral shut-off valve protection. .10 5.7.5 Removable shut-off valve protection .10 5.8 Actively cooled MH assemblies. .10 5.9 Particulatecontainment .10 6 Inspection and testing ..10 6.1 General .10 6.2 Type/qualification tests .10 6.2.1 General. ..10 6.2.2 Firetest 11 6.2.3 Initial burst tests for MH assemblies with an internal volume of 120 ml or less.13 6.2.4 Drop or impact test. 13 6.2.5 Leaktest .17 6.2.6 Hydrogen cycling and strain measurement test .17 6.2.7 Shut-off valve impact test. .21 iii ed without license from IHS Not for Resale, 09/03/2018 17:07:11 MDT