ISO INTERNATIONAL STANDARD 1709 Third edition 2018-02 AMENDMENT 1 2022-08 Nuclear energy Fissile materials - Principles of criticality safety in storing, handling and processing AMENDMENT 1: Methods of control and safety equipment Energie nucleaire -Matieres fissiles - Principes de sureté-criticité lors des operations d'entreposage, de manutention et de mise en oeuvre du procédé AMENDEMENT 1: Méthodes de controle et équipements importants pourla surete Reference number IS0 1709:2018/Amd.1:2022(E) ISO @ISO2022 IS0 1709:2018/Amd.1:2022(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2022 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 or Iso'smemberbodyinthe country oftherequester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+4122 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2022 - All rights reserved