ISO INTERNATIONAL STANDARD 21013-2 First edition 2007-06-15 Cryogenic vessels Pressure-relief accessories for cryogenic service - Part 2: Non-reclosable pressure-relief devices Récipients cryogeniques - Dispositifs de sécurite pour le service cryogenique- Partie2:Dispositifsdesecuritenonrefermables Reference number ISO 21013-2:2007(E) @ ISO 2007 IHS unde Not for Resale ISO 21013-2:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In COPYRIGHT PROTECTED DOCUMENT @ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or IsO's memberbody in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland Copyright International Oorganization for Standardization @ ISO 2007 - All rights reserved without license from IHS Not for Resale ISO 21013-2:2007(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 21013-2 was prepared by Technical Committee ISO/TC 220, Cryogenic vessels. IsO 21013 consists of the following parts, under the general title Cryogenic vessels— Pressure-relief accessories for cryogenic service: 一 Part 1: Reclosable pressure-relief valves Part2:Non-reclosablepressure-relief devices Part3:Sizingandcapacitydetermination ili adizai eworkingmitedwihoutlicenefrmH Not for Resale INTERNATIONAL STANDARD ISO 21013-2:2007(E) Cryogenic vessels Pressure-relief accessories for cryogenic service Part 2: Non-reclosable pressure-relief devices 1 Scope This International Standard specifies the requirements for the design, manufacture and testing of to operation at temperatures from ambient to cryogenic. ThisInternationalStandard is restricted to bursting-discand buckling-pindevices not exceedinga sizeof DN 200 designed to relieve single-phase vapours gases. A bursting-disc or buckling-pin assembly may be specified, constructed and tested such that it is suitable for use with more than one gas or with mixtures of gases. NOTE This International Standard does not provide methods for determining the capacity of bursting-disc or buckling-pin devices for a particular cryogenic vessel. Such methods are provided in Iso 21013-3. 2Normative references The following referenced documents are indispensable for the application of this document. For da