ISO/TR TECHNICAL REPORT 12391-2 First edition 2002-12-15 Gas cylinders Refillable seamless steel Performance tests - Part 2: Fracture performance tests Monotonic burst tests Bouteilles a gaz Rechargeables en acier sans soudure - Essais de performance Partie 2: Essais de mode de rupture - Essais de rupture monotonique Reference number ISO/TR 12391-2:2002(E) ISO @ISO2002 py IHS under ted without license from IHS Not for Resale ISO/TR 12391-2:2002(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 the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. @ISO2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2002 - All rights reserved ermitted without license from IHS Not for Resale ISO/TR12391-2:2002(E) Contents Page Foreword i Introduction 1 Scope 2 Reference 3 Symbols 4 Background information .. 5 Experimental test programme 5.1 Types of cylinder tested. 5.2 Materialpropertiestests.. 5.3 Description of the flawed-cylinder burst test... 6 Flawed-cylinder burst test results... 6.1 Flawed-cylinder burst test procedure. 9 6.2 Flawed-cylinder burst test results for group A materials .. 10 6.3 Flawed-cylinder burst test results for group B materials .... 11 6.4 Flawed-cylinder burst test results for group C materials ... 11 6.5 Flawed-cylinder burst test results for group D materials . 11 6.6 Flawed-cylinder burst test results for group E materials . 12 6.7 Flawed-cylinder burst test results for tests conducted under special conditions 12 Discussion..... 12 7.1 Background.. .12 7.2 Iso 98o9-2 flawed-cylinder burst test procedures and acceptance criteria. 13 7.3 Analysis by WG 14 to relate the flawed-cylinder burst test to Charpy-V-notch energy values .... 7.4 Adjustment to the measured P/Ps ratio to account for the local cylinder wall thickness .... 15 8 Summary and conclusions .... Annex A (informative) Evaluation of the measurement uncertainty in the flawed-cylinder burst test. 113 Bibliography .116 Copyright International Organizaion for Standardization rights reserved ii Not for Resale ISO/TR 12391-2:2002(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. 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. In exceptional circumstances, when a technical committee has collected data of a different kind from that simple majority vote of its participating members to publish a Technical Report. A Technical Report is entirely informative in nature and does not have to be reviewed until the data it provides are considered to be no longer valid or useful. Attention is drawn to the