BS IS0 21013-1:2021+A1:2024 BSl Standards Publication Cryogenic vessels Pressure-relief accessories for cryogenic service Part 1: Reclosable pressure-relief valves bsi. BS IS0 21013-1:2021+A1:2024 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 21013-1:2021+A1:2024. It supersedes BS IS0 21013-1:2021, which is withdrawn. The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to ISO text carry the number of the ISO amendment. For example, text altered by ISO amendment 1 is indicated by A Al. The UK participation in its preparation was entrusted to Technical Committee PVE/18, Cryogenic vessels. A list of organizations represented on this committee can be obtained on request to its committee manager. Contractual and legal considerations This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be reasonableness of this publication. All and any such responsibility and liability is expressly disclaimed to the full extent permitted by the law. This publication is provided as is, and is to be used at the recipient's own risk. The recipient is advised to consider seeking professional guidance with respecttoitsuseofthispublication, This publication is not intended to constitute a contract. Users are responsible for its correct application. @ The British Standards Institution 2024 Published by BSI Standards Limited 2024 ISBN 978 0 539 22818 2 ICS 23.020.40 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2022. Amendments/corrigenda issued since publication Date Text affected 31 May 2024 Implementation of IS0 amendment 1:2024 BS IS0 21013-1:2021+A1:2024 INTERNATIONAL ISO STANDARD 21013-1 +A1 Second edition 2021-12 Amendment 1 2024-05 Cryogenic vessels Pressure-relief accessories for cryogenic service Part 1: Reclosable pressure-relief valves Récipients cryogéniques - Dispositifs de sécurite pour le service cryogenique- Partie 1: Soupapes de surete pour service cryogénique Reference number IS0 21013-1:2021(E) ISO @ IS0 2021