ISO-11439-2000.pdf
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1、Reference number ISO 11439:2000(E) ISO 2000 INTERNATIONAL STANDARD ISO 11439 First edition 2000-09-15 Gas cylinders High pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehicles Bouteilles gaz Bouteilles haute pression pour le stockage de gaz naturel utilis comme
2、carburant bord des vhicules automobiles Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 08:59:09 MDTNo reproduction or networking permitted without license from IHS -,-,- I
3、SO 11439:2000(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes 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 downlo
4、ading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat 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 G
5、eneral 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 gi
6、ven below. ISO 2000 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 ISOs membe
7、r 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 copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2000 All rights reserved Copyright International Organization for Standardization Provided
8、 by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 08:59:09 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11439:2000(E) ISO 2000 All rights reservediii ContentsPage Foreword.iv Introduction.v 1Scope 1 2Normat
9、ive references1 3Terms and definitions .2 4Service conditions.5 5Approval and certification 7 6Requirements for type CNG-1 metal cylinders.10 7Requirements for type CNG-2 hoop-wrapped cylinders17 8Requirements for type CNG-3 fully-wrapped cylinders.27 9Requirements for type CNG-4 all-composite cylin
10、ders.37 10Marking.46 11Preparation for dispatch .47 Annex A (normative) Test methods and criteria48 Annex B (normative) Ultrasonic inspection .56 Annex C (informative) Approval and certification procedures.60 Annex D (informative) NDE defect size by flawed cylinder cycling.62 Annex E (informative) R
11、eport forms63 Annex F (informative) Environmental test66 Annex G (informative) Verification of stress ratios using strain gauges71 Annex H (informative) Manufacturers instructions for handling, use and inspection of cylinders 72 Copyright International Organization for Standardization Provided by IH
12、S under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/04/2007 08:59:09 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11439:2000(E) iv ISO 2000 All rights reserved Foreword ISO (the International Organization for Standardizati
13、on) 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 established has the right to be re
14、presented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards
15、are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. 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
16、 a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 11439 was prepared by Technical Committee ISO/TC 58
17、, Gas cylinders, Subcommittee SC 3, Cylinder design. Annexes A and B form a normative part of this International Standard. Annexes C to H are for information only. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=
18、Wing, Bernie Not for Resale, 04/04/2007 08:59:09 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 11439:2000(E) ISO 2000 All rights reservedv Introduction Cylinders for the on-board storage of fuel for natural gas vehicle service are required to be light-weight, at the s
19、ame time maintaining or improving on the level of safety currently existing for other pressure vessels. These requirements are achieved by: a)specifying service conditions precisely and comprehensively as a firm basis for both cylinder design and use; b)using an appropriate method to assess cyclic p
20、ressure fatigue life and to establish allowable defect sizes in metal cylinders or liners; c)requiring design qualification tests; d)requiring non-destructive testing and inspection of all production cylinders; e)requiring destructive tests on cylinders and cylinder material taken from each batch of
21、 cylinders produced; f)requiring manufacturers to have a comprehensive quality system documented and implemented; g)requiring periodic re-inspection and, if necessary, retesting in accordance with the manufacturers instructions; h)requiring manufacturers to specify as part of their design, the safe
22、service life of their cylinders. Cylinder designs that meet the requirements of this International Standard: a)will have a fatigue life which exceeds the specified service life; b)when pressure cycled to failure, will leak but not rupture; c)when subject to hydrostatic burst tests, will have factors
23、 of “stress at burst pressure” over “stress at working pressure” that exceed the values specified for the type of design and the materials used. Owners or users of cylinders designed to this International Standard should note that the cylinders are designed to operate safely if used in accordance wi
24、th specified service conditions for a specified finite service life only. The expiry date is marked on each cylinder and it is the responsibility of owners and users to ensure that cylinders are not used after that date, and that they are inspected in accordance with the manufacturers instructions.
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