1、 ISO 2014 Gas cylinders Refillable composite gas cylinders and tubes Design, construction and testing Part 2: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with load-sharing metal liners AMENDMENT 1 Bouteilles gaz Bouteilles gaz rechargeables en matriau composite et tu
2、bes Conception, construction et essais Partie 2: Bouteilles gaz composites entirement bobines renforces par des fibres et tubes dune contenance allant jusqu 450 l avec liners mtalliques transmettant la charge AMENDEMENT 1 INTERNATIONAL STANDARD ISO 11119-2 Second edition 2012-07-15 Reference number
3、ISO 11119-2:2012/Amd.1:2014(E) AMENDMENT 1 2014-08-15 ISO 11119-2:2012/Amd.1:2014(E)ii ISO 2014 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means,
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5、Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ISO 11119-2:2012/Amd.1:2014(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of prepa
6、ring 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 represented on that committee. International organizations, governmental and non-governmental, in l
7、iaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC
8、Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility th
9、at 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. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent d
10、eclarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as informat
11、ion about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 58, Gas cylinders, Subcommittee SC 3, Cylinder design. ISO 2014 All rights reserved iii Gas cylind
12、ers Refillable composite gas cylinders and tubes Design, construction and testing Part 2: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with load-sharing metal liners AMENDMENT 1 This amendment will align the Drop Test of ISO 11119-2 with that of ISO 11119-3 8.5.9 Drop
13、 test 8.5.9.1 For cylinders up to and including 50 l water capacity 8.5.9.1.1 Procedure Two cylinders shall be filled with water to 50 % capacity and fitted with a plug, flush with the end of each cylinder. Both cylinders shall be dropped twice, in each of the five positions shown in Figure 2, from
14、a minimum height of 1,2 m, on to a steel plate of a minimum of 5 mm thickness. The protective plate shall be sufficiently flat so that the difference in level between any two points on the surface is no more than 2 mm. One cylinder shall be subjected to the burst test specified in 8.5.4. The other c
15、ylinder shall be subjected to the pressure cycling test specified in 8.5.5. The parameters that shall be monitored and recorded are the following: a) visual appearance after each drop record position and dimensions of impact damage; b) parameters specified in test 8.5.4; c) parameters specified in t
16、est 8.5.5. Dimensions in metres 1.2 m 45 45 Figure 2 Drop test ISO 11119-2:2012/Amd.1:2014(E) ISO 2014 All rights reserved 1 ISO 11119-2:2012/Amd.1:2014(E) 8.5.9.1.2 Criteria First cylinder: burst pressure, p b , shall be equal to or greater than 100 % of the minimum burst level required in the burs
17、t test (see 8.5.4). Second cylinder: the cylinder shall satisfy the requirements of the ambient cycle test (see 8.5.5). 8.5.9.2 For cylinders over 50 l water capacity 8.5.9.2.1 Procedure a) One or more empty cylinders, with sealing device to protect threads and sealing surfaces, shall be drop tested
18、 at ambient temperature. The surface onto which the cylinders are dropped shall be a smooth, horizontal concrete pad or flooring. b) One cylinder shall be dropped in a horizontal position with the lowest point of the cylinder no less than 1,8 m above the surface onto which it is dropped. One cylinde
19、r shall be dropped vertically on one end at a sufficient height above the floor or pad so that the potential energy is 1 220 J, but in no case shall the height of the lower end be greater than 1,8 m. One cylinder shall be dropped at a 45 angle onto a dome from a height such that the centre of gravit
20、y is at 1,8 m. However, if the lower end is closer to the ground than 0,6 m, the drop angle shall be changed to maintain a minimum height of 0,6 m and a centre of gravity of 1,8 m. The cylinder(s) shall be allowed to bounce on the concrete pad or flooring after the initial impact. No attempt shall b
21、e made to prevent this secondary impacting, but the cylinder can be prevented from toppling during the vertical drop test. 8.5.9.2.2 Criteria The cylinders shall withstand 3 000 pressurization cycles to 2/3 of the test pressure, p h , without failure by burst or leakage. The test shall continue for
22、a further 9 000 cycles, or until the cylinder fails by leakage, whichever is the sooner. In either case, the cylinder shall be deemed to have passed the test. However, if failure during this second part of the test is by burst, then the cylinder shall have failed the test. Table 1 Type approval tests In Table 1: replace _ bwith X b replace _ cwith X c replace _ dwith X d replace _ ewith X e2 ISO 2014 All rights reserved ISO 11119-2:2012/Amd.1:2014(E) ISO 2014 All rights reserved ICS 23.020.30 Price based on 2 pages
