1、BSI Standards PublicationBS EN ISO 10462:2013Gas cylinders Acetylenecylinders Periodic inspectionand maintenanceBS EN ISO 10462:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO10462:2013. It supersedes BS EN 12863:2002 which is withdrawn.The UK participa
2、tion in its preparation was entrusted to TechnicalCommittee PVE/3/7, Gas containers - Gas cylinder (receptacle)operations.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a con
3、tract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 75218 6ICS 23.020.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the auth
4、ority of theStandards Policy and Strategy Committee on 31 December 2013.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10462 December 2013 ICS 23.020.30 Supersedes EN 12863:2002English Version Gas cylinders - Acetylene cylinders - Period
5、ic inspection and maintenance (ISO 10462:2013) Bouteilles gaz - Bouteilles dactylne - Contrle et entretien priodiques (ISO 10462:2013) Gasflaschen - Acetylenflaschen - Wiederkehrende Inspektion und Wartung (ISO 10462:2013) This European Standard was approved by CEN on 23 November 2013. CEN members a
6、re bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to
7、 the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management C
8、entre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithu
9、ania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-
10、1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10462:2013 EBS EN ISO 10462:2013EN ISO 10462:2013 (E) 3 Foreword This document (EN ISO 10462:2013) has been prepared by Technical Committee ISO/TC 58 “Gas cylin
11、ders” in collaboration with the Technical Committee CEN/TC 23 “Transportable gas cylinders” the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2014, and
12、conflicting national standards shall be withdrawn at the latest by June 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This doc
13、ument supersedes EN 12863:2002. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Re
14、public of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 10462:2013 has been
15、approved by CEN as EN ISO 10462:2013 without any modification. BS EN ISO 10462:2013ISO 10462:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 General 34.1 Intervals between periodic inspections 34.2 Requirem
16、ents for inspection 35 Preparation of the acetylene cylinder 35.1 Depressurization of the acetylene cylinder 35.2 Preparation for external visual inspection . 45.3 Removal of the valve . 45.4 Removal of neck/core hole filters . 46 Inspection and maintenance 56.1 External visual inspection . 56.2 Ins
17、pection of the porous material 56.3 Addition of non-monolithic porous material 66.4 Replacement of porous material . 76.5 Inspection of fusible plugs 76.6 Inspection of valves . 76.7 Inspection of cylinder neck 76.8 Reassembly. 87 Cylinder marking and identification . 88 Records . 99 Rejection and r
18、endering cylinders unserviceable 910 Disposal of unserviceable cylinders 9Annex A (informative) Tops of acetylene cylinders containing monolithic porous material .11Annex B (normative) External visual inspection 14Annex C (normative) Determination of the top clearance 17Annex D (normative) Cracks in
19、 the porous material 19Annex E (informative) Rings for indicating the date of the next periodic inspection for gas cylinders 20Bibliography .22BS EN ISO 10462:2013ISO 10462:2013(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
20、(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 represented on that committee. International organizations, g
21、overnmental 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.The procedures used to develop this document and those intended for its further main
22、tenance are described in the ISO/IEC 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. www.iso.org/directivesAttention
23、is drawn to the possibility that 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/
24、or on the ISO list of patent declarations received. www.iso.org/patentsAny 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 assessmen
25、t, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 58, Gas cylinders, Subcommittee SC 4, Operational requirements for gas cylind
26、ers.This third edition cancels and replaces the second edition (ISO 10462:2005), which has been technically revised.The following are the main technical modifications.a) The second edition (ISO 10462:2005) has been revised taking EN 12863 into account; EN 12863 has been superseded by this third edit
27、ion.b) Periodic inspection periods are based on the relevant regulations and do not have to be repeated in this International Standard, thus also avoiding possible inconsistencies in case periodic inspection periods are changed in the regulations. Consequently, the former Annex A has been deleted an
28、d relevant information is covered in 4.1.c) For the removal of the valve, reference to ISO 25760 is included and, consequently, the former Annex B has been deleted.d) The external visual inspection has been revised; 6.1 and Annex B (which was Annex C in the second edition) have been updated accordin
29、gly.e) The inspection of monolithic porous materials with regard to cracking, crumbling or cavitation is given in greater detail for better clarity. A new Annex C for the determination of the top clearance has been added.f) For the inspection of the valve, reference to ISO 22434 is included and, con
30、sequently, the former Annex F has been deleted.iv ISO 2013 All rights reservedBS EN ISO 10462:2013ISO 10462:2013(E)IntroductionAcetylene cylinders differ from all other cylinders transporting compressed or liquefied gases in that they contain a porous material and, normally, a solvent in which the a
31、cetylene is dissolved. Acetylene cylinders that contain a porous material but no solvent are only used for special applications. For periodic inspections, it is intended that due regard be given to the different types of construction of cylinders and porous materials. This International Standard sho
32、uld be read considering these differences.The primary objective of the porous material is to limit an acetylene decomposition, if it is initiated, and thus prevent a cylinder incident. If some porous material is missing, or if a defect (e.g. a cavity, crack or void of significant size) exists as a r
33、esult of breakdown or subsidence of the porous material, the decomposition could progress at a rate that can cause violent failure of the cylinder accompanied by an explosion.The requirements in this International Standard are mainly those specific to acetylene cylinders. The periodic inspection of
34、acetylene cylinders is to be performed only by competent persons and, in those jurisdictions requiring it, persons authorized by the regulatory authority.This International Standard is intended to be used under a variety of national regulatory regimes, but has been written so that it is suitable for
35、 the application of Reference 1. Attention is drawn to requirements in the specified relevant national regulations of the country (countries) where the cylinders are intended to be used that might override the requirements given in this International Standard. Where there is any conflict between thi
36、s International Standard and any applicable regulation, the regulation always takes precedence.In International Standards, “weight” is equivalent to a force, expressed in Newton. However, in common parlance (as used in terms defined in this International Standard), “weight” is used as an equivalent
37、of “mass”, but this practice is deprecated (see ISO 80000-4).Similarly, the unit “bar”1), which is not an SI unit and is deprecated by ISO, is used as an equivalent of Pascal, the SI unit for pressure. This is because of its universal use in the field of technical gases. Pressure values in this Inte
38、rnational Standard are given as gauge pressure (pressure exceeding atmospheric pressure), unless noted otherwise.1) 1 bar = 0,1 MPa = 105Pa; 1 MPa = 1 N/mm2. ISO 2013 All rights reserved vBS EN ISO 10462:2013BS EN ISO 10462:2013Gas cylinders Acetylene cylinders Periodic inspection and maintenance1 S
39、copeThis International Standard specifies requirements for the periodic inspection of acetylene cylinders as required for the transport of dangerous goods and for maintenance in connection with periodic inspection. It applies to acetylene cylinders with and without solvent and with a maximum nominal
40、 water capacity of 150 l.NOTE The limitation of 150 l is derived from the definition of cylinder in Reference 1.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the ed
41、ition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 13341, Gas cylinders Fitting of valves to gas cylindersISO 22434, Transportable gas cylinders Inspection and maintenance of cylinder valves3 Terms and definitionsFor the
42、purposes of this document, the following terms and definitions apply.3.1acetylene cylindercylinder manufactured and suitable for the transport of acetylene, containing a porous material (3.6) and solvent (3.9) (where applicable) for acetylene with a valve and other accessories affixed to the cylinde
43、rNote 1 to entry: When there is no risk of ambiguity, the word “cylinder” is used.3.2cylinder shellempty cylinder manufactured and suitable for receiving and containing a porous material (3.6) for use as part of an acetylene cylinder (3.1)3.3maximum acetylene contentspecified maximum weight of acety
44、lene including saturation acetylene (3.8) in an acetylene cylinder (3.1)3.4maximum acetylene chargemaximum acetylene content (3.3) minus the saturation acetylene (3.8)3.5periodic inspection bodybody responsible for the periodic inspection of acetylene cylinders (3.1)INTERNATIONAL STANDARD ISO 10462:
45、2013(E) ISO 2013 All rights reserved 1BS EN ISO 10462:2013ISO 10462:2013(E)3.6porous materialsingle or multiple component material introduced to or formed in the cylinder shell (3.2) that, due to its porosity, allows the absorption of a solvent/acetylene solutionNote 1 to entry: The porous material
46、can be either monolithic, consisting of a solid product obtained by reacting materials or by materials connected together with a binder, or non-monolithic, consisting of granular, fibrous or similar materials without the addition of a binder.3.7residual gasweight of acetylene including the saturatio
47、n acetylene (3.8) contained in an acetylene cylinder (3.1) returned for filling3.8saturation acetyleneacetylene dissolved in the solvent (3.9) in the acetylene cylinder (3.1) at atmospheric pressure (1,013 bar) and at a temperature of 15 C3.9solventliquid that is absorbed by the porous material (3.6
48、) and is capable of dissolving and releasing acetyleneNote 1 to entry: The following abbreviated terms are used: “A” for acetone; “DMF” for dimethylformamide.3.10tarereference weight of the acetylene cylinder (3.1) including the specified solvent contentNote 1 to entry: The tare is further specified
49、 in accordance with the following subclauses.Note 2 to entry: For acetylene cylinders with solvent, the tare is expressed by indicating either tare S or both, tare A and tare S. For solvent-free acetylene cylinders, the tare is expressed by indicating tare F. For the tare used for acetylene cylinders in bundles, see ISO 13088.3.10.1tare Asum of the weights of the empty cylinder shell (3.2), the porous material (3.6), the specified solvent content, the valve, the coating and the valve guard, where applicable, and all other parts that are perm
