1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 0-626-17608-5 SANS 11623:2006Edition 1ISO 11623:2002Edition 1SOUTH AFRICAN NATIONAL STANDARD Transportable gas cylinders Periodic inspection and tes
4、ting of composite gas cylinders This national standard is the identical implementation of ISO 11623:2002 and is adopted with the permission of the International Organization for Standardization. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012
5、428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 11623:2006 Edition 1 ISO 11623:2002 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee StanSA SC 5120.05D, Vessels and sys
6、tems under pressure Cylinders, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. Reference numberISO 11623:2002(E)ISO 2002INTERNATIONAL STANDARD ISO11623First edition2002-03-01Transportable gas cylinders Periodic inspection and testing of c
7、omposite gas cylinders Bouteilles gaz transportables Contrles et essais priodiques des bouteilles gaz en matriau composite ISO 11623:2002(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 ed
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10、odies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2002 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 mechan
11、ical, including photocopying and microfilm, 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.ch Web www.iso.c
12、h Printed in Switzerland ii ISO 2002 All rights reserved ISO 11623:2002(E) ISO 2002 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is no
13、rmally 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 liaison with ISO, also take part in
14、 the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of technical committees is to prepa
15、re International Standards. 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 a vote. Attention is drawn to the possibility that so
16、me 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. ISO 11623 was prepared by the European Committee for Standardization (CEN) in collaboration with Technical Committee ISO/TC 58, Gas
17、cylinders, Subcommittee SC 4, Operational requirements for gas cylinders, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). Throughout the text of this document, read “.this European Standard.“ to mean “.this International Standard.“. Annexes B and ZA
18、form a normative part of this International Standard. Annexes A, C and D are for information only. Annex ZA provides a list of corresponding International and European Standards for which equivalents are not given in the text. ISO 11623:2002(E) iv ISO 2002 All rights reservedPage ContentsForewordvIn
19、troduction.11Scope12Normative references13Terms and definitions24Intervals between periodic inspection and testing35Procedures for periodic inspection and test66Identification of cylinder and preparation for inspection and test.77External visual inspection.78Internal visual inspection119Permeability
20、 testing.1210Pressure test121 Inspection of valve.1212Final operations.1313Rejection and rendering cylinders unserviceable14Annex A (informative) Example of procedure to be adopted when a cylinder valve is suspectedof being obstructed.24Annex B (normative) Damage criteria for wire wound aluminium al
21、loy cylinders27Annex C (informative) Volumetric expansion testing of gas cylinders28Annex D (informative) Inspection and maintenance of valves - Recommended procedures36Annex ZA (normative) Corresponding International and European Standards for which equivalentsare not given in the text.37ISO 11623:
22、2002(E) ISO 2002 All rights reserved vForewordThis document (EN ISO 11623:2002) has been prepared by Technical Committee CEN/TC 23 “Transportablegas cylinders“, the secretariat of which is held by BSI, in collaboration with Technical Committee ISO/TC 58“Gas cylinders“.This European Standard shall be
23、 given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by September 2002, and conflicting national standards shall bewithdrawn at the latest by September 2002.This European Standard has been submitted for reference into the RID and/or or
24、in the technical annexes ofthe ADR. Therefore in this context the standards listed in the normative references and covering basicrequirements of the RID/ADR not addressed within the present standard are normative only when thestandards themselves are referred to in the RID and/or in the technical an
25、nexes of the ADR.Annexes A, C and D are informative.Annexes B and ZA are normative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard : Austria, Belgium, Czech Republic, Denmark,Finland, Fran
26、ce, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and the United Kingdom.ISO 11623:2002(E) ISO 2002 All rights reserved 1IntroductionThe principal aim of periodic inspection and testing is that at the completion of the test the
27、cylinders may bereintroduced into service for a further period of time. It is not possible to identify all considerations for inspectingand re-testing of composite cylinders in this publication. Questions regarding specific cylinders should bedirected to the manufacturer.1 ScopeThis standard specifi
28、es the requirements for periodic inspection and testing of hoop wrapped and fully wrappedcomposite transportable gas cylinders, with aluminium, steel or non-metallic liners or of linerless construction,intended for compressed, liquefied or dissolved gases under pressure, of water capacity from 0,5 l
29、 up to 450 l.NOTE As far as practicable, this standard may also be applied to cylinders of less than 0,5 l water capacity.This standard specifies the requirements for periodic inspection and testing to verify the integrity of such gascylinders for further service.2 Normative referencesThis European
30、Standard incorporates by dated or undated reference, provisions from other publications.These normative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications applyt
31、o this European Standard only when incorporated in it by amendment or revision. For undated referencesthe latest edition of the publication referred to applies (including amendments).EN 629-2:1996, Transportable gas cylinders - 25E taper thread for connection of valves to gas cylinders -Part 2: Gaug
32、e inspectionEN 1089-1, Transportable gas cylinders Gas cylinder identification (excluding LPG) Part 1:StampmarkingEN 1089-2, Transportable gas cylinders Gas cylinder identification (excluding LPG) Part 2:Precautionary labelsEN 1089-3, Transportable gas cylinders Gas cylinder identification Part 3: C
33、olour codingEN 1795, Transportable gas cylinders (excluding LPG) Procedures for change of gas serviceprEN 1802, Transportable Gas cylinders Periodic inspection and testing of seamless aluminium alloy gascylindersprEN 1968, Transportable gas cylinders Periodic inspection and testing of seamless steel
34、 gas cylindersprEN 13096, Transportable gas cylinders Filling conditions for single gasesISO 32:1977, Gas cylinders for medical use Marking for identification of contentISO 6406: 1992, Periodic inspection and testing of seamless steel gas cylindersISO 7225:1994, Gas cylinders Precautionary labelsISO
35、 10461: 1993, Seamless aluminium-alloy gas cylinders; periodic inspection and testingISO 11114-1:1997, Transportable gas cylinders Compatibility of cylinder and valve materials with gascontents Part 1: Metallic materialsISO 11623:2002(E) 2 ISO 2002 All rights reservedISO 11114-2:1997, Transportable
36、gas cylinders Compatibility of cylinder and valve materials with gascontents Part 2: Non-metallic materialsISO 11191:1997, Gas cylinders 25E taper thread for connection of valves to gas cylinders InspectiongaugesISO 11621: 1997, Gas cylinders Procedures for change of gas serviceISO 13341:1997, Trans
37、portable gas cylinders Fitting of valves to gas cylindersISO 10298, Determination of toxicity of a gas or gas mixtureISO 13769, Gas cylinders Stamp marking3 Terms and definitionsFor the purposes of this European standard, the following terms and definitions apply.3.1burst pressuremaximum pressure at
38、tained during a burst test3.2composite overwrapfibres and matrix taken together as a combined unit3.3exterior coatinglayer of material applied to the cylinder as a protective coating or for cosmetic purposesNOTE Not all composite cylinders will have a special exterior coating.3.4fibreload-carrying p
39、art of the composite overwrap e.g. glass, aramid and carbon3.5fully wrapped composite cylinder without linercylinder manufactured only from continuous fibre strands in a resin matrix wrapped in both circumferentialand longitudinal directions3.6fully wrapped composite cylinder with linersteel, alumin
40、ium alloy or non-metallic liner wrapped with continuous fibre strands in a resin matrix bothcircumferentially and longitudinally3.7hoop wrapped composite cylinderseamless steel or aluminium alloy liner wrapped with continuous fibre strands or steel wire around only thecylindrical body of the liner,
41、leaving the metal in the neck and base regions exposed. The fibre strands areembedded in a resin matrix3.8identification labellabel containing the permanent markings required by the relevant design document and EN 1089-1 orISO 137693.9LC5050 % lethal concentration, as defined in ISO 10298ISO 11623:2
42、002(E) ISO 2002 All rights reserved 33.10lifetimeservice life of the cylinder, if specified on the design drawing3.11linerinner portion of the composite cylinder designed both to contain the gas and transmit the gas pressure to thecomposite overwrap. For hoop wrapped cylinders this provides a substa
43、ntial structural strength.3.12non-metallic linerliner made from thermoplastic, thermosetting, or elastomer material3.13protective sleeveremovable transparent or non-transparent sleeve fitted to the outside surface of the cylinder3.14repairminor refurbishment performed by competent persons under cont
44、rolled conditions as described in 7.4, e.g.repair of resin matrix3.15resin matrixmaterial which is used to bind and hold the fibres in place. It is usually a thermoplastic or thermosetting resin3.16rejected cylindercylinder not fit for service in its present condition3.17toxic gaseswhen LC50 200 p.p
45、.m. V/V but 5 000 p.p.m. V/V, in accordance with ISO 102983.18very toxic gaseswhen LC50200 p.p.m. V/V, in accordance with ISO 102984 Intervals between periodic inspection and testingA cylinder shall fall due for periodic inspection and test on its first receipt by a filler after the expiry of the in
46、tervalin Tables 1 to 4. However, a shorter period than that inTables 1 to 4 may be stipulated by the inspection bodyfor the first re-test only.There is no general requirement for the user to return a gas cylinder before the contents have been used eventhough the test interval may have lapsed. When t
47、he lifetime has expired, the cylinder shall not be refilled andshall be removed from service when presented for the next filling (see clause 13).In the case of cylinders used for emergency purposes it is the responsibility of the owner or user to submit it fora periodic inspection within the specifi
48、ed interval.The lists of gases in Tables 1 to 4 are intended as guides only. Reference shall be made to the manufacturer orinspection body if there is a question on the re-test period for specific gases.ISO 11623:2002(E) 4 ISO 2002 All rights reservedTable 1 Intervals for aluminium alloy liners (a)D
49、escription Gas (c)Period (Yars)Compressed gases e.g. Air, Ar, He, H2, Ne, N2, O2,CH4, CO and compressed gasmixtures5 or 10 (see band d)Liquefied gases e.g. CO2, N2O and liquefied gasmixturesVery toxic gasesLC50200 p.p.m. V/Ve.g. AsH3, PH33aCertain requirements may necessitate a shorter time interval e.g. presence of mercury in hydrogen,polymerisation and decomposition reactions. The compatibility of the gas to be filled with aluminium alloysshall be checked in accordance with ISO 11114-1.b
