ISO 11119-2-2012 Gas cylinders - Refillable composite gas cylinders and tubes - Design construction and testing - Part 2 Fully wrapped fibre reinforced composit.pdf

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1、 ISO 2012 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 Bouteilles gaz Bouteilles gaz rechargeables en matriau composite et tubes Concepti

2、on, 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 INTERNATIONAL STANDARD ISO 11119-2 Second edition 2012-07-15 Reference number ISO 11119-2:2012(E) ISO 1

3、1119-2:2012(E) ii ISO 2012 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2012 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 permiss

4、ion 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 Switzerland ISO 11119-2:2012(E) ISO 2012 A

5、ll rights reserved iii Contents Page Foreword iv Introduction v 1 Scope 1 2 Normative references . 1 3 Terms and definitions . 2 4 Symbols . 4 5 Inspection and testing . 4 6 Materials . 4 6.1 Liner materials . 4 6.2 Composite materials . 5 7 Design and manufacture . 5 7.1 General . 5 7.2 Design subm

6、ission . 5 7.3 Manufacturing 6 8 Type approval procedure 7 8.1 General requirements . 7 8.2 Prototype tests . 7 8.3 New design 8 8.4 Design variants 9 8.5 Type approval test procedures and criteria .10 9 Batch inspection and testing .22 9.1 Liner 22 9.2 Failure of liner batch tests 23 9.3 Overwrap m

7、aterials .23 9.4 Composite cylinder .23 9.5 Cylinder failure during type approval or batch testing .24 10 Cylinder marking .25 10.1 General .25 10.2 Additional marking 25 Annex A (informative) Examples of design approval certificate 26 Annex B (informative) Specimen test reports .27 Bibliography .30

8、 ISO 11119-2:2012(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

9、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 Electrotechnical Commission

10、 (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 technical com

11、mittees 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

12、 be held responsible for identifying any or all such patent rights. ISO 11119-2 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 3, Cylinder design. This edition cancels and replaces ISO 11119-2:2002. ISO 11119 consists of the following parts, under the general title Gas

13、 cylinders Refillable composite gas cylinders and tubes Design, construction and testing: Part 1: Hoop wrapped fibre reinforced composite gas cylinders and tubes up to 450 l Part 2: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with load-sharing metal liners Part 3: Fu

14、lly wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with non-load-sharing metallic or non-metallic liners The following part is under preparation: Part 4: Fully wrapped fibre reinforced composite gas cylinders with load-sharing welded metal liners iv ISO 2012 All rights reserv

15、ed ISO 11119-2:2012(E) Introduction The purpose of this International Standard is to provide a specification for the design, manufacture, inspection and testing of cylinders for worldwide usage. The objective is to balance design and economic efficiency against international acceptance and universal

16、 utility. This International Standard aims to eliminate the concern about climate, duplicate inspection and restrictions currently existing because of lack of definitive International Standards and is not to be construed as reflecting on the suitability of the practice of any nation or region. This

17、part of ISO 11119 addresses the general requirements on design, construction and initial inspection and testing of pressure receptacles of the Recommendations on the transport of dangerous goods: Model regulations developed by the United Nations (Reference 16). ISO 2012 All rights reserved v Gas cyl

18、inders 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 1 Scope This part of ISO 11119 specifies requirements for composite gas cylinders and tubes between

19、 0,5 l and 450 l water capacity, for the storage and conveyance of compressed or liquefied gases. This part of ISO 11119 applies to type 3 fully wrapped cylinders or tubes with a load-sharing metal liner and composite reinforcement on both the cylindrical portion and the dome ends. This part of ISO

20、11119 is limited to cylinders and tubes with composite reinforcement of carbon fibre, aramid fibre or glass fibre (or a mixture thereof) within a matrix. Cylinders complying with this part of ISO 11119 have a minimum design life of 15 years. This part of ISO 11119 does not address the design, fittin

21、g, and performance of removable protective sleeves. This part of ISO 11119 does not apply to cylinders with welded liners. NOTE ISO 11439 6applies to cylinders intended for use as fuel containers on natural gas vehicles and ISO 11623 7covers periodic inspection and re-testing of composite cylinders.

22、 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) applies. ISO 3341, Textile glass Y

23、arns Determination of breaking force and breaking elongation ISO 6506-1, Metallic materials Brinell hardness test Part 1: Test method ISO 6508-1, Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) ISO 7225, Gas cylinders Precautionary labels ISO 78

24、66, Gas cylinders Refillable seamless aluminium alloy gas cylinders Design, construction and testing ISO 9809-1, Gas cylinders Refillable seamless steel gas cylinders Design, construction and testing Part 1: Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa ISO 9809-2,

25、Gas cylinders Refillable seamless steel gas cylinders Design, construction and testing Part 2: Quenched and tempered steel cylinders with tensile strength greater than or equal to 1 100 MPa ISO 9809-3, Gas cylinders Refillable seamless steel gas cylinders Design, construction and testing Part 3: Nor

26、malized steel cylinders ISO 10618, Carbon fibre Determination of tensile properties of resin-impregnated yarn INTERNATIONAL STANDARD ISO 11119-2:2012(E) ISO 2012 All rights reserved 1 ISO 11119-2:2012(E) ISO 11114-1, Gas cylinders Compatibility of cylinder and valve materials with gas contents Part

27、1: Metallic materials ISO 13341, Gas cylinders Fitting of valves to gas cylinders ISO 13769, Gas cylinders Stamp marking EN 1964-3, Transportable gas cylinders Specification for the design and construction of refillable transportable seamless steel gas cylinders of water capacities from 0,5 litre up

28、 to and including 150 litres Part 3: Cylinders made of seamless stainless steel with an R mvalue of less than 1 100 MPa ASTM D7269, Standard test methods for tensile testing of aramid yarns 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. Referenc

29、es to cylinders are to include composite tubes as appropriate 3.1 aramid fibre continuous filaments of aramid laid up in tow form 3.2 autofrettage pressure application procedure which strains the metal liner past its yield point sufficient to cause permanent plastic deformation, and results in the l

30、iner having compressive stresses and the fibres having tensile stresses when at zero internal gauge pressure 3.3 batch set of homogeneous items or material NOTE The number of items in a batch can vary according to the context in which the term is used. 3.4 batch of liners production quantity of up t

31、o 200 finished liners successively produced (plus units required for destructive testing) of the same nominal diameter, length, thickness and design, from the same material cast and heat treated to the same conditions of temperature and time 3.5 batch of finished cylinders production quantity of up

32、to 200 finished cylinders successively produced by the same manufacturing process plus finished cylinders required for destructive testing, of the same nominal diameter, length, thickness and design 3.6 burst pressure highest pressure reached in a cylinder during a burst test 3.7 carbon fibre contin

33、uous filaments of carbon laid up in tow form 3.8 composite overwrap combination of fibres and matrix 3.9 dedicated gas service service in which a cylinder is to be used only with a specified gas or gases 2 ISO 2012 All rights reserved ISO 11119-2:2012(E) 3.10 equivalent fibre fibre equivalent to a f

34、ibre used in a previously prototype tested cylinder 3.11 equivalent liner liner that has certified properties and performance so as to be a direct equivalent to a liner used in an already approved cylinder 3.12 exterior coating layers of material applied to the cylinder as protection or for cosmetic

35、 purposes NOTE The coating can be clear or pigmented. 3.14 glass fibre continuous filaments of glass laid up in tow form 3.15 liner inner portion of the composite cylinder, comprising a metallic vessel, whose purpose is both to contain the gas and transmit the gas pressure to the fibres 3.16 matrix

36、material that is used to bind and hold the fibres in place 3.17 load-sharing liner liner which has a burst pressure greater than or equal to 5 % of the nominal burst pressure of the finished composite cylinder 3.18 thermoplastic material plastics capable of being repeatedly softened by increase of t

37、emperature and hardened by decrease of temperature 3.19 thermosetting material plastics that, when cured by the application of heat or chemical means, harden permanently into a substantially infusible and insoluble product 3.20 working pressure settled pressure of a compressed gas at a reference tem

38、perature of 15 C in a full gas cylinder 3.21 nominal outside diameter Diameter of the cylinder specified by the manufacturer for the type approval including tolerances (e.g. 1%) 3.22 type 3 cylinder fully wrapped cylinder with a load-sharing metal liner and composite reinforcement on both cylindrica

39、l and dome ends. ISO 2012 All rights reserved 3 ISO 11119-2:2012(E) 4 Symbols Symbols and their designations p b burst pressure of finished cylinder bar p h test pressure bar p max maximum developed pressure at 65 C bar p w working pressure bar 5 Inspection and testing This part of ISO 11119 is inte

40、nded to be used under a variety of national regulatory regimes, but has been written so that it is suitable for use with the conformity assessment system of the Recommendations on the transport of dangerous goods: Model regulations developed by the United Nations (Reference 16). Attention is drawn t

41、o requirements in specified relevant national regulations of the country (countries) where the cylinders are intended to be used that might override the requirements given in this part of ISO 11119. To ensure that the cylinders conform to this part of ISO 11119, they shall be subject to inspection a

42、nd testing in accordance with Clauses 6, 7, 8, and 9 by an inspection body (hereafter referred to as “the inspector”) authorized to do so. Example forms of certificates that can be used are shown in Annexes A and B. Equipment used for measurement, testing, and examination during production shall be

43、maintained and calibrated within a documented quality management system. 6 Materials 6.1 Liner materials 6.1.1 The liner materials shall conform in all relevant respects to the appropriate standard: a) seamless steel liners: ISO 9809-1, ISO 9809-2 or ISO 9809-3, as appropriate; b) seamless stainless

44、 steel liners: EN 1964-3; c) seamless aluminium alloy liners: ISO 7866. Relevant sections are those covering materials, thermal treatments, neck design, construction and workmanship, and mechanical tests. This excludes the design requirements, since these are specified by the manufacturer for the de

45、sign of the composite cylinder (see 7.2.2). 6.1.2 The materials used shall be of uniform and consistent quality. The composite cylinder manufacturer shall verify that each new batch of materials has the correct properties and is of satisfactory quality, and shall maintain records so that the cast of

46、 material and the heat treatment batch (where applicable) used for the manufacture of each cylinder can be identified. 6.1.3 The liner shall be manufactured from a metal or alloy suitable for the gas to be contained in accordance with ISO 11114-1. 6.1.4 When a neck ring is provided, it shall be of a

47、 material compatible with that of the cylinder, and shall be securely attached by a method appropriate to the liner material. 4 ISO 2012 All rights reserved ISO 11119-2:2012(E) 6.2 Composite materials 6.2.1 The overwrap materials shall be carbon fibre or aramid fibre or glass fibre or any mixture th

48、ereof. 6.2.2 The matrix shall be a polymer suited to the application, environment, and intended life of the product. 6.2.3 The supplier of the filament material and the matrix system component materials shall provide sufficient documentation for the composite cylinder manufacturer to be able to iden

49、tify fully the batch of materials used in the manufacture of each cylinder. 6.2.4 The materials used shall be of uniform and consistent quality. The composite cylinder manufacturer shall verify that each new batch of materials has the correct properties and is of satisfactory quality, and maintain records from which the batch of materials used for the manufacture of each cylinder can be identified. A certificate of conformity from the material manufac