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    ISO 11755-2005 Gas cylinders - Cylinder bundles for compressed and liquefied gases (excluding acetylene) - Inspection at time of filling《储气瓶 集装压缩气体和液化气体气瓶(乙炔除外).pdf

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    ISO 11755-2005 Gas cylinders - Cylinder bundles for compressed and liquefied gases (excluding acetylene) - Inspection at time of filling《储气瓶 集装压缩气体和液化气体气瓶(乙炔除外).pdf

    1、INTERNATIONAL STANDARD ISO 11755 Second edition 2005-06-01 Reference number ISO 11755:2005(E) ISO 2005 Gas cylinders Cylinder bundles for compressed and liquefied gases (excluding acetylene) Inspection at time of filling Bouteilles gaz Cadres de bouteilles pour gaz comprims et liqufis ( lexclusion d

    2、e lactylne) Inspection au moment du remplissageISO 11755:2005(E) ii ISO 2005 All rights reserved 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

    3、 are licensed to and installed on the computer performing the editing. In downloading 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. Det

    4、ails 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

    5、relating to it is found, please inform the Central Secretariat at the address given below. ISO 2005 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,

    6、without permission in writing from either ISO at the address below or ISOs 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 copyrightiso.org Web www.iso.org Published in SwitzerlandISO 11755:2005(E

    7、) ISO 2005 All rights reserved iii 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 in

    8、terested 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 liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechni

    9、cal Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the

    10、 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.

    11、 ISO shall not be held responsible for identifying any or all such patent rights. ISO 11755 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 4, Operational requirements for gas cylinders. This second edition cancels and replaces the first edition (ISO 11755:1996), which

    12、has been technically revised.ISO 11755:2005(E) iv ISO 2005 All rights reserved Introduction Transportable gas cylinder bundles require inspection before, during and after the filling process to ensure that all components are suitable for the intended filling conditions, and are free of serious defec

    13、ts and contamination that can affect the integrity of the bundle.INTERNATIONAL STANDARD ISO 11755:2005(E) ISO 2005 All rights reserved 1 Gas cylinders Cylinder bundles for compressed and liquefied gases (excluding acetylene) Inspection at time of filling 1S c o p e This International Standard specif

    14、ies the requirements for inspection before, during and after the time of filling for cylinder bundles for compressed and liquefied gases, also referred to as bundles. This International Standard does not apply to acetylene bundles. This International Standard does not apply to bundles when they are

    15、a part of a battery vehicle. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applie

    16、s. ISO 6406, Gas cylinders Seamless steel gas cylinders Periodic inspection and testing ISO 10461, Gas cylinders Seamless aluminium-alloy gas cylinders Periodic inspection and testing ISO 11623, Transportable gas cylinders Periodic inspection and testing of composite gas cylinders 3 Terms and defini

    17、tions For the purposes of this document, the following terms and definitions apply. 3.1 compressed gas gas which, when packaged under pressure for transport, is entirely gaseous at NOTE This category includes all gases with a critical temperature less than or equal to . 3.2 cylinder bundle bundle tr

    18、ansportable assembly of gas cylinders which is designed for being routinely lifted and which consists of a frame and two or more cylinders, each of water capacity up to 150 l, connected to a manifold by cylinder valves or fittings such that the cylinders are filled, transported and emptied without d

    19、isassembly 3.3 frame structural and non-structural members of a gas cylinder bundle which combine all its components together, whilst providing protection for the bundles cylinders, valves and manifold, and which enable the bundle to be transported 3.4 cylinder valve valve which is fitted into a cyl

    20、inder and to which a manifold is connected 50 C 50 CISO 11755:2005(E) 2 ISO 2005 All rights reserved 3.5 cylinder fitting device with no gas shut-off capability that serves as a means for connecting the manifold of a bundle to its individual cylinders when cylinder valves are not fitted to the cylin

    21、ders 3.6 manifold system for connecting the cylinder valves or fittings to the main outlet valve(s) or outlet connection(s) of the cylinder bundle 3.7 main outlet valve valve which is fitted to the manifold of the bundle isolating it from the outlet connection(s) 3.8 liquefied gas gas which, when pa

    22、ckaged under pressure for transport, is partially liquid at temperatures above 3.8.1 high pressure liquefied gas gas with a critical temperature between and 3.8.2 low pressure liquefied gas gas with a critical temperature above 3.9 maximum permissible filling weight product of the minimum guaranteed

    23、 water capacity of the cylinders of the cylinder bundle and the filling ratio of the gas to be contained therein 3.10 maximum permissible operating pressure highest pressure permitted to be developed in a cylinder during service 4 Inspection at time of filling 4.1 Inspection prior to filling Before

    24、filling a bundle, it shall be verified by visual examination that a) the bundle is permitted to be filled in the country of the filling station, b) the bundle has an unexpired periodic inspection and test date, c) the bundle is compatible with the nature of the gas and filling pressure or filling we

    25、ight 1) , d) the frame is free from damage which can affect its mechanical integrity, e) the restraining systems that prevent the cylinders from moving are secure and the cylinders have not moved while in service, f) any lifting attachments and/or fork-lift slots are free from damage that can affect

    26、 the integrity of the bundle, g) the manifold and pipework are securely attached to the frame and are undamaged, h) flexible hoses, where fitted, are free from damage, 1) In International Standards, weight is equivalent to a force, expressed in newtons. However, in common parlance (as used in terms

    27、defined in this International Standard), the word “weight” continues to be used to mean mass, but this practice is deprecated (ISO 31-3). 50 C 50 C + 65 C + 65 CISO 11755:2005(E) ISO 2005 All rights reserved 3 i) visible surfaces of the cylinders are free from any signs of dents, cuts, gouges, fire

    28、damage or any other signs of damage. Rejection criteria shall be applied in accordance with ISO 6406, ISO 10461 or ISO 11623 as appropriate. If any cylinder is damaged, the cylinder bundle shall not be filled but shall be identified and removed from service for corrective action. In the case of fire

    29、 damage, the bundle shall be disassembled and all cylinders inspected; any suspect cylinders shall be revalidated or rejected, j) the bundle does not show any signs of having been immersed in water or other liquids (e.g. cylinders covered in mud or seaweed) or any signs of tampering (e.g. loosened b

    30、olts, missing panels), k) the cylinder valves, if fitted, are all in the open position, l) the main outlet valve is free from contamination and is undamaged and has the correct thread for the gas to be filled, m) any pressure relief devices, such as relief valves or bursting discs, are in place and

    31、have not been visibly damaged or altered, n) in the case of liquefied gases, the tare weight and maximum permissible filling weight are legible, and o) in the case of compressed gases, the maximum permissible operating pressure is legible. Additionally, a check of the main outlet valve shall be carr

    32、ied out to ensure that the valve operates properly. Before filling, it shall be verified that the bundle is free from any internal contamination which can affect its integrity, e.g. by ensuring that the bundle has a positive residual pressure and, for liquefied gases, by checking the mass against th

    33、e tare weight of the bundle. 4.2 Bundle identification The following necessary data shall be permanently marked or labelled on the cylinder bundle: a) design reference number, and approval number (if appropriate); b) character(s) identifying the country of approval, using the distinguishing signs of

    34、 motor vehicles in international traffic (see Reference 2); c) inspection stamp mark or stamp of authorized inspection body; d) date of initial inspection and test, the year (four digits) followed by the month (two digits) separated by a slash (e.g. 2003/02); e) the test pressure, in bar 2) , preced

    35、ed by the letters “PH” and followed by the letters “BAR”; f) for bundles filled by weight 1) , the tare weight and maximum permissible filling weight followed by the letters for the unit; g) in the case of pressure receptacles for compressed gases, the working pressure, in bar, preceded by the lette

    36、rs “PW”; h) for liquefied gases, the water capacity, in litres, expressed to three significant digits rounded down to the last digit, followed by the letter “L ”; i) the manufacturers mark registered by the competent authority. If the country of manufacture is not the same as the country of approval

    37、, then the manufacturers mark shall be preceded by the character(s) identifying the country of manufacture as indicated by the distinguishing signs of motor vehicles in international traffic (see Reference 2). The country mark and the manufacturers mark shall be separated by a space or slash; and j)

    38、 the serial number assigned by the manufacturer. 2) The unit “bar” is not an SI unit, and its use is deprecated. Use of “bar” in this International Standard is aligned with 6.2.2.7.2 (f) and (i) of Reference 2. Note that . 1 bar= 100 kPaISO 11755:2005(E) 4 ISO 2005 All rights reserved 4.3 Inspection

    39、 during filling To prevent overfilling of bundles or individual cylinders within bundles, one of the following procedures shall be followed for bundles of liquefied gases equipped with individual closable valves: all cylinders of a bundle shall be dismantled and only one cylinder shall be filled at

    40、a time; or each cylinder in a bundle shall be equipped with a separate filling control device to monitor the exact amount of gas filled into each cylinder of the bundle. During filling of the bundle, it shall be verified that no apparent leaks exist. Particular attention shall be paid to bundles con

    41、taining toxic, flammable or pyrophoric gases. 4.4 Inspection after filling Upon completion of the filling of the bundle, it shall be verified that: a) the bundle has not been overfilled. For bundles filled by pressure, the pressure shall be corrected for the reference temperature. For bundles filled

    42、 by mass, the mass of the full bundle shall be checked against the maximum permissible filling weight using a scale that has a working range and accuracy corresponding to the capacity of the bundle being filled; b) the cylinder bundle has been permanently marked or correctly labelled; c) the main ou

    43、tlet valve does not leak; d) no apparent leaks exist from the bundle; and e) cylinder valves that need to be closed for transport in accordance with transport regulations have been closed.ISO 11755:2005(E) ISO 2005 All rights reserved 5 Bibliography 1 EN 13769, Transportable gas cylinders Cylinder bundles Design, manufacture, identification and testing 2 UN Recommendations on the Transport of Dangerous Goods, Model Regulations, Thirteenth revised edition, 2003ISO 11755:2005(E) ICS 23.020.30 Price based on 5 pages ISO 2005 All rights reserved


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