1、March 2012 Translation by DIN-Sprachendienst.English price group 12No 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
2、23.020.30!$zj“1875871www.din.deDDIN EN ISO 11372Gas cylinders Acetylene cylinders Filling conditions and filling inspection (ISO 11372:2011)English translation of DIN EN ISO 11372:2012-03Gasflaschen Acetylenflaschen Fllbedingungen und Inspektion beim Fllen (ISO 11372:2011)Englische bersetzung von DI
3、N EN ISO 11372:2012-03Bouteilles gaz Bouteilles dactylne Conditions de remplissage et de contrle au remplissage (ISO 11372:2011)Traduction anglaise de DIN EN ISO 11372:2012-03SupersedesDIN EN 1801:1999-02 andDIN EN 12754:2002-03www.beuth.deIn case of doubt, the German-language original shall be cons
4、idered authoritative.Document comprises 21 pages02.12 DIN EN ISO 11372:2012-03 2 A comma is used as the decimal marker. National foreword This document has been prepared by Technical Committee ISO/TC 58 “Gas cylinders” in collaboration with Technical Committee CEN/TC 23 “Transportable gas cylinders”
5、 (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Druckgasanlagen (Pressurized Gas Installations Standards Committee), Working Committee NA 016-00-03 AA Druckgas-flaschen und Ausrstung. The DIN Standards corresponding to the Internat
6、ional Standards referred to in this document are as follows: ISO 7225 DIN EN ISO 7225 ISO 10297 DIN EN ISO 10297 ISO 11117 DIN EN ISO 11117 ISO 13769 DIN EN ISO 13769 Amendments This standard differs from DIN EN 1801:1999-02 and DIN EN 12754:2002-03 as follows: a) The specifications of EN 1801, EN 1
7、2754 and ISO 11372 have been harmonized and combined in one document; b) The clauses concerning filling inspection have been restructured in order to better reflect the actual proceeding of filling inspection; c) a new Subclause 3.3 “Solvent content” has been added; d) a new Clause 4 “Specific filli
8、ng inspection of solvent-free acetylene cylinders” has been added; e) a new informative Annex A “Safe operating diagram” has been added; f) a new normative Annex B “Determination of the solvent content in acetylene cylinders” has been added; g) the standard has been brought in line with the current
9、rules of presentation. Previous editions DIN EN 1801: 1999-02 DIN EN 12754: 2002-03 DIN EN ISO 11372:2012-03 3 National Annex NA (informative) Bibliography DIN EN ISO 7225, Gas cylinders Precautionary labels DIN EN ISO 10297, Transportable gas cylinders Cylinder valves Specification and type testing
10、 DIN EN ISO 11117, Gas cylinders Valve protection caps and valve guards Design, construction and tests DIN EN ISO 13769, Gas cylinders Stamp marking DIN EN ISO 11372:2012-03 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11372 December 2011 ICS 23.020.30
11、Supersedes EN 12754:2001, EN 1801:1998English Version Gas cylinders - Acetylene cylinders - Filling conditions and filling inspection (ISO 11372:2011) Bouteilles gaz - Bouteilles dactylne - Conditions de remplissage et de contrle au remplissage Gasflaschen - Acetylenflaschen - Fllbedingungen und Ins
12、pektion beim Fllen (ISO 11372:2011) This European Standard was approved by CEN on 15 October 2011. 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-t
13、o-date lists and bibliographical references concerning such national standards 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 transla
14、tion under the responsibility of a CEN member into its own language and notified 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,
15、 France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitatio
16、n in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11372:2011: EEUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG (ISO 11372:2011) Contents Page Foreword . 3 Introduction . 4 1 Scope . 5 2 Terms and definitio
17、ns 5 3 Filling inspection 7 3.1 General 7 3.2 Pre-fill inspection . 7 3.3 Solvent content 8 3.4 Inspection during filling 9 3.5 Post-fill inspection . 10 4 Specific filling inspection of solvent-free acetylene cylinders . 10 4.1 Pre-fill inspection . 10 4.2 Post-fill inspection . 11 Annex A (informa
18、tive) Safe operating diagram . 12 Annex B (normative) Determination of the solvent content in acetylene cylinders . 15 Bibliography 17 2DIN EN ISO 11372:2012-03 EN ISO 11372:2011 (E) Foreword This document (EN ISO 11372:2011) has been prepared by Technical Committee ISO/TC 58 “Gas cylinders“ in coll
19、aboration with 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 2012, and conflicting natio
20、nal standards shall be withdrawn at the latest by June 2012. 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 document supersedes
21、EN 1801:1998, EN 12754:2001. 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, France, Germany, Gree
22、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11372:2011 has been approved by CEN as a EN ISO 11372:2011 without any
23、 modification. 3DIN EN ISO 11372:2012-03 EN ISO 11372:2011 (E) Introduction This International Standard aims at the harmonization of the different operating and filling conditions of individual acetylene cylinders and covers requirements that reflect current practice and experience regarding the ins
24、pection at the time of filling. ISO 11372 is intended to be used under a variety of national regulatory regimes but has been written so that it is suitable for the application of the UN Model Regulations1. Where there is any conflict between this International Standard and any applicable regulation,
25、 the regulation always takes precedence. In International Standards, weight is equivalent to a force, expressed in newtons. However, in common parlance (as used in terms defined in this International Standard), the word “weight” continues to be used to mean “mass”, but this practice is deprecated (s
26、ee ISO 80000-4). In this International Standard the unit bar is used, due to its universal use in the field of technical gases. It should, however, be noted that bar is not an SI unit, and that the corresponding SI unit for pressure is pascals (Pa). Pressure values given in this International Standa
27、rd are given as gauge pressure (pressure exceeding atmospheric pressure) unless noted otherwise. 4DIN EN ISO 11372:2012-03 EN ISO 11372:2011 (E) 1 Scope This International Standard specifies minimum requirements for the filling conditions and filling inspection of acetylene cylinders. This Internati
28、onal Standard is not applicable to an assembly of cylinders connected by a manifold, e.g. bundles (see ISO 13088). 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 acetylene cylinder cylinder manufactured and suitable for the transport of acet
29、ylene, containing a porous material and solvent (where applicable) for acetylene, with a valve and other accessories affixed to the cylinder NOTE 1 For solvent-free acetylene cylinders, see Clause 4. NOTE 2 When there is no risk of ambiguity, the word “cylinder” is used. 2.2 cylinder shell acetylene
30、 cylinders empty cylinder manufactured and suitable for receiving and containing a porous material for use as part of an acetylene cylinder 2.3 filler gas cylinders trained person responsible for inspection prior to, during and immediately after filling 2.4 maximum acetylene content acetylene cylind
31、ers specified maximum weight of acetylene including saturation acetylene in the cylinder 2.5 maximum acetylene charge acetylene cylinders maximum acetylene content minus the saturation gas 2.6 porous material acetylene cylinders single- or multiple-component material introduced to or formed in the c
32、ylinder shell that, due to its porosity, allows the absorption of a solvent/acetylene solution NOTE The porous material may 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,
33、 fibrous or similar materials without the addition of a binder. 5DIN EN ISO 11372:2012-03 EN ISO 11372:2011 (E) 2.7 residual gas acetylene cylinders weight of acetylene including the saturation acetylene, contained in a cylinder returned for filling 2.8 saturation gas acetylene cylinders acetylene t
34、hat remains dissolved in the solvent in the cylinder at atmospheric pressure (1,013 bar) and at a temperature of 15 C 2.9 solvent acetylene cylinders liquid that is absorbed by the porous material and is capable of dissolving and releasing acetylene NOTE The following abbreviations are used: “A” for
35、 acetone; “DMF” for dimethylformamide. 2.10 specified solvent content acetylene cylinders weight of solvent that the acetylene cylinder shall contain in accordance with the type approval 2.11 tare acetylene cylinders reference weight of the acetylene cylinder including the specified solvent content
36、NOTE 1 The tare is further specified in accordance with definitions 2.11.1 to 2.11.3. NOTE 2 For 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 f
37、or cylinders in bundles, see ISO 13088. 2.11.1 tare A acetylene cylinders sum of the weights of the empty cylinder shell, the porous material, the specified solvent content, the valve, the coating, where applicable, and all other parts which are permanently attached (e.g. by clamping or bolting) to
38、the cylinder when it is presented to be filled 2.11.2 tare S acetylene cylinders tare A plus the weight of the saturation gas 2.11.3 tare F acetylene cylinders tare A minus the specified solvent content 2.12 total weight acetylene cylinders tare A plus the maximum acetylene content or tare S plus th
39、e maximum acetylene charge, respectively NOTE 1 For solvent-free cylinders, the total weight is tare F plus the maximum acetylene content. NOTE 2 The stamped value can be less than the approved value. 6DIN EN ISO 11372:2012-03 EN ISO 11372:2011 (E) 2.13 working pressure acetylene cylinders settled p
40、ressure at a uniform reference temperature of 15 C in a cylinder containing the specified solvent content and the maximum acetylene content 3 Filling inspection 3.1 General Each cylinder shall be submitted to an inspection prior to, during and immediately after filling. Filling of an acetylene cylin
41、der includes determination of its solvent content and replenishment of its solvent, where applicable. The items described in 3.2 to 3.5 shall be covered by a filling inspection. Cylinders not fulfilling these requirements shall be clearly identified for further treatment according to the written pro
42、cedures of the filling station. Cylinder owners may request that their authorization be obtained prior to their cylinders being filled. Such ownership shall be established and this authorization obtained before filling the cylinders. The filling conditions of acetylene cylinders are established base
43、d on type testing according to ISO 3807 or other applicable regulations/standards. Filling conditions for acetylene cylinders are shown in the Safe operating diagram in Annex A, for information. 3.2 Pre-fill inspection 3.2.1 Verification of stamp-marking and necessary documentation The information r
44、equired in the following lists shall be made available to the filler, for example, by providing him with appropriate documentation and by training. Before filling an acetylene cylinder, it shall be identified that: a) the cylinder is permitted for filling in the country of the filling station; b) th
45、e cylinder has not exceeded its due date for periodic inspection; c) the cylinder does not have a current history of problems; d) the stamp marking (in accordance with regional regulatory requirements and/or ISO 13769) and labelling (in accordance with regional regulatory requirements and/or ISO 722
46、5) are appropriate to acetylene; NOTE For sovent-free acetylene cylinders, additional marking elements according to 4.1 need to be verified. e) the colour coding (in accordance with regional regulatory requirements and/or regional industry practice), where applicable, is appropriate to acetylene. Be
47、fore filling an acetylene cylinder, the following information shall be made available: 1) identification of the porous material; 2) type of solvent; 3) specified solvent content; 4) tare (with information whether tare A or tare S is used); 5) total weight and/or its maximum acetylene content (if tar
48、e A is used) or its maximum acetylene charge (if tare S is used). 7DIN EN ISO 11372:2012-03 EN ISO 11372:2011 (E) 3.2.2 Verification of serviceable condition It shall be established that each cylinder is in a serviceable condition before filling. It shall therefore be established that the cylinder is clean and free from foreign material, so that the cylinder can be assessed for mechanical damage that would otherwise prevent it from being fill
