ISO INTERNATIONAL STANDARD 20854 First edition 2019-10 Thermal containers : Safety standard for refrigerating systems using flammable refrigerants Requirements for design and operation Conteneursthermiques-Normedesécuritepourlessystemes refrigerants utilisant des fluides frigorigenes inflammables Exigencesdeconceptionetdefonctionnement Referencenumber IS020854:2019(E) ISO @IS02019 IS020854:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2019 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 the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below orIso's memberbody in the countryof therequester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+41227490111 Fax:+4122749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2019- All rights reserved