1、May 2014 Translation by DIN-Sprachendienst.English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23
2、.020.30!%25z“2151887www.din.deDDIN EN ISO 10462Gas cylinders Acetylene cylinders Periodic inspection and maintenance (ISO 10462:2013);English version EN ISO 10462:2013,English translation of DIN EN ISO 10462:2014-05Gasflaschen Acetylenflaschen Wiederkehrende Inspektion und Wartung (ISO 10462:2013);E
3、nglische Fassung EN ISO 10462:2013,Englische bersetzung von DIN EN ISO 10462:2014-05Bouteilles gaz Bouteilles dactylne Contrle et entretien priodiques (ISO 10462:2013);Version anglaise EN ISO 10462:2013,Traduction anglaise de DIN EN ISO 10462:2014-05SupersedesDIN EN 12863:2006-02 andDIN EN 12863 Cor
4、rigendum1:2009-02www.beuth.deDocument comprises 29 pagesIn case of doubt, the German-language original shall be considered authoritative.04.14 DIN EN ISO 10462:2014-05 2 A comma is used as the decimal marker. National foreword This document (EN ISO 10462:2013) has been prepared by Technical Committe
5、e ISO/TC 58 “Gas cylinders”, Subcommittee SC 4 “Operational requirements” in collaboration with Technical Committee CEN/TC 23 “Transportable gas cylinders” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Druckgasanlagen (Pressurized
6、 Gas Installations Standards Committee), Working Committee NA 016-00-03 AA Druckgasflaschen und Ausrstung; Spiegelausschuss zu CEN/TC 23 und ISO/TC 58. This standard is intended to be referenced within the context of the European Agreement on the International Carriage of Dangerous Goods by Road (RI
7、D/ADR). Before applying this standard, users of this standard are to verify whether the provisions of other laws and regulations have been met, particularly those regarding occupational safety and health. The DIN Standards corresponding to the International Standards referred to in this document are
8、 as follows: ISO 3807 DIN EN ISO 3807 ISO 7225 DIN EN ISO 7225 ISO 11363-1 DIN EN ISO 11363-1 ISO 11363-2 DIN EN ISO 11363-2 ISO 13088 DIN EN ISO 13088 ISO 13341 DIN EN ISO 13341 ISO 13769 DIN EN ISO 13769 ISO 22434 DIN EN ISO 22434 ISO 80000-4 DIN EN ISO 80000-4 Amendments This standard differs fro
9、m DIN EN 12863:2006-02 and DIN EN 12863 Corrigendum 1:2009-02 as follows: a) International Standard ISO 10462:2013 has been adopted taking into account the content of EN 12863:2002/A1:2005; b) intervals between periodic inspections are no longer specified as reference is made to the relevant regulat
10、ions; c) the external visual inspection has been revised (Subclause 6.1 and Annex B); d) the inspection of monolithic porous materials has been revised (Subclause 6.2.3); e) Annex A “Acetylene cylinders manufactured according to National Regulations” has been deleted; f) Annex B “Procedure to be ado
11、pted when a cylinder valve is suspected to be obstructed” has been deleted (replaced by reference to ISO 25760); g) Annex E “Inspection and maintenance of valves and their connections” has been deleted (replaced by reference to ISO 22434); h) Annex C “Determination of the top clearance” has been add
12、ed; i) the standard has been editorially revised and the terminology has been updated. Previous editions DIN EN 12863: 2002-09, 2006-02 DIN EN 12863 Corrigendum 1: 2009-02 DIN EN ISO 10462:2014-05 3 National Annex NA (informative) Bibliography DIN EN ISO 3807, Gas cylinders Acetylene cylinders Basic
13、 requirements and type testing DIN EN ISO 7225, Gas cylinders Precautionary labels DIN EN ISO 11363-1, Gas cylinders 17E and 25E taper threads for connection of valves to gas cylinders Part 1: Specifications DIN EN ISO 11363-2, Gas cylinders 17E and 25E taper threads for connection of valves to gas
14、cylinders Part 2: Inspection gauges DIN EN ISO 13088, Gas cylinders Acetylene cylinder bundles Filling conditions and filling inspection DIN EN ISO 13341, Gas cylinders Fitting of valves to gas cylinders DIN EN ISO 13769, Gas cylinders Stamp marking DIN EN ISO 22434, Transportable gas cylinders Insp
15、ection and maintenance of cylinder valves DIN EN ISO 80000-4, Quantities and units Part 4: Mechanics DIN EN ISO 10462:2014-05 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10462 December 2013 ICS 23.020.30 Supersedes EN 12863:2002English Version Gas cyli
16、nders - Acetylene cylinders - Periodic 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 CE
17、N on 23 November 2013. CEN members are 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 standar
18、ds may be obtained on application to 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 noti
19、fied to the CEN-CENELEC Management Centre 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, Ic
20、eland, Ireland, Italy, Latvia, Lithuania, 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 Man
21、agement Centre: Avenue Marnix 17, B-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 EContents PageForeword 3Introduction 41 Scope . 52 Normative references 53 Terms and definitions . 54 General 74.
22、1 Intervals between periodic inspections 74.2 Requirements for inspection 75 Preparation of the acetylene cylinder 75.1 Depressurization of the acetylene cylinder 75.2 Preparation for external visual inspection . 85.3 Removal of the valve . 85.4 Removal of neck/core hole filters . 86 Inspection and
23、maintenance 96.1 External visual inspection . 96.2 Inspection of the porous material 96.3 Addition of non-monolithic porous material . 106.4 Replacement of porous material 116.5 Inspection of fusible plugs . 116.6 Inspection of valves 116.7 Inspection of cylinder neck . 116.8 Reassembly 127 Cylinder
24、 marking and identification 128 Records 139 Rejection and rendering cylinders unserviceable . 1310 Disposal of unserviceable cylinders . 13Annex A (informative) Tops of acetylene cylinders containing monolithic porous material .14Annex B (normative) External visual inspection 17Annex C (normative) D
25、etermination of the top clearance 20Annex D (normative) Cracks in the porous material 22Annex E (informative) Rings for indicating the date of the next periodic inspection for gas cylinders 23Bibliography .25DIN EN ISO 10462:2014-05 EN ISO 10462:2013 (E) 2 DIN EN ISO 10462:2014-05 EN ISO 10462:2013
26、(E) 3Foreword This document (EN ISO 10462:2013) has been prepared by Technical Committee ISO/TC 58 “Gas cylinders” 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 nati
27、onal standard, either by publication of an identical text or by endorsement, at the latest by June 2014, and 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 rig
28、hts. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document 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 Standar
29、d: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain
30、, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 10462:2013 has been approved by CEN as EN ISO 10462:2013 without any modification. IntroductionAcetylene cylinders differ from all other cylinders transporting compressed or liquefied gases in that they contain
31、a porous material and, normally, a solvent in which the acetylene 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 cylind
32、ers and porous materials. This International Standard should 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
33、 cavity, crack or void of significant size) exists as a result 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 spe
34、cific to acetylene cylinders. The periodic inspection of 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
35、 regimes, but has been written so that it is suitable for 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 Intern
36、ational Standard. Where there is any conflict between this 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 In
37、ternational Standard), “weight” is used as an equivalent 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 t
38、he field of technical gases. Pressure values in this International 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.DIN EN ISO 10462:2014-05 EN ISO 10462:2013 (E) 4 1 ScopeThis International Standard sp
39、ecifies 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 water capacity of 150 l.NOTE The
40、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 edition cited applies. For undated r
41、eferences, 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 purposes of this document, the fol
42、lowing 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 cylinderNote 1 to entry: When there is no
43、 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 acetylene including saturation acetylen
44、e (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)DIN EN ISO 10462:2014-05 EN ISO 10462:2013 (E) 5 3.6porous material
45、single 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 can be either monolithic, consisting of a solid product obtained by reacting materials or by
46、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 saturation acetylene (3.8) contained in an acetylene cylinder (3.1) returned for filling3.8saturation
47、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) 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 in accordance with the following subclauses.Note 2 to entr
