1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 11372:2011Gas cylinders Acetylenecylinders Filling conditionsand filling inspection (ISO11372:2011)Copyright European Committee for Standardization Provided by IHS unde
2、r license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 11372:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO11372:2011. It supersedes BS EN 12754:2002 and BS EN 1801:1999which are withdrawnThe UK p
3、articipation 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
4、of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012ISBN 978 0 580 67806 6ICS 23.020.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and
5、 Strategy Committee on 31 January 2012.Amendments issued since publicationDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EURO
6、PISCHE NORM EN ISO 11372 December 2011 ICS 23.020.30 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 (I
7、SO 11372:2011) Gasflaschen - Acetylenflaschen - Fllbedingungen und Inspektion 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 S
8、tandard 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 the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (Eng
9、lish, 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 Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium,
10、 Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTE
11、E FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11372:2011: ECopyright European Commi
12、ttee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 11372:2011EN ISO 11372:2011 (E) 3 Foreword This document (EN ISO 11372:2011) has been prepared by Technical Committee ISO/TC 58 “Gas cylinders“
13、in collaboration 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 conflictin
14、g national 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 supe
15、rsedes 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, German
16、y, Greece, 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 with
17、out any modification. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 11372:2011ISO 11372:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv Introduction
18、 . v 1 Scope 1 2 Terms and definitions . 1 3 Filling inspection . 3 3.1 General . 3 3.2 Pre-fill inspection 3 3.3 Solvent content 4 3.4 Inspection during filling 5 3.5 Post-fill inspection 6 4 Specific filling inspection of solvent-free acetylene cylinders . 6 4.1 Pre-fill inspection 6 4.2 Post-fill
19、 inspection 7 Annex A (informative) Safe operating diagram 8 Annex B (normative) Determination of the solvent content in acetylene cylinders 11 Bibliography 13 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted
20、 without license from IHS-,-,-BS EN ISO 11372:2011ISO 11372:2011(E) iv ISO 2011 All rights reservedForeword 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 c
21、arried 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 the wor
22、k. 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 2. The main task of technical committees is to prepare Inter
23、national 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 some of th
24、e 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. ISO 11372 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 4, Operational requirements for gas cylinders. This third edition
25、cancels and replaces the second edition (ISO 11372:2005), with the following main technical revisions: a) ISO 11372:2005 was revised taking into account EN 12754 and EN 1801. b) The clauses concerning filling inspection were restructured in order to better reflect the actual proceeding of the fillin
26、g inspection. c) A new subclause 3.3 with requirements and information regarding the solvent content was added. d) A new Clause 4 concerning the specific filling inspection of solvent-free acetylene cylinders was added. e) A new informative Annex A introducing the Safe operating diagram was added in
27、 order to improve the understanding of the importance of correct filling conditions for acetylene cylinders. f) A new normative Annex B outlining the calculations necessary for determination of the solvent content was added. Copyright European Committee for Standardization Provided by IHS under lice
28、nse with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 11372:2011ISO 11372:2011(E) ISO 2011 All rights reserved vIntroduction This International Standard aims at the harmonization of the different operating and filling conditions of individual acetyl
29、ene cylinders and covers requirements that reflect current practice and experience regarding the inspection 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 Regulati
30、ons1. 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 newtons. However, in common parlance (as used in terms defined in this International
31、Standard), the word “weight” continues to be used to mean “mass”, but this practice is deprecated (see 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 co
32、rresponding SI unit for pressure is pascals (Pa). Pressure values given in this International Standard are given as gauge pressure (pressure exceeding atmospheric pressure) unless noted otherwise. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo
33、 reproduction or networking permitted without license from IHS-,-,-BS EN ISO 11372:2011Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 11372:2011INTERNATIONAL STANDARD
34、ISO 11372:2011(E) ISO 2011 All rights reserved 1Gas cylinders Acetylene cylinders Filling conditions and filling inspection 1 Scope This International Standard specifies minimum requirements for the filling conditions and filling inspection of acetylene cylinders. This International Standard is not
35、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 acetylene, containing a p
36、orous 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 cylinders empty cyli
37、nder 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 cylinders specified maximum
38、 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 cylinder shell that, d
39、ue 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, fibrous or similar m
40、aterials without the addition of a binder. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 11372:2011ISO 11372:2011(E) 2 ISO 2011 All rights reserved2.7 residual gas ac
41、etylene cylinders weight of acetylene including the saturation acetylene, contained in a cylinder returned for filling 2.8 saturation gas acetylene cylinders acetylene that remains dissolved in the solvent in the cylinder at atmospheric pressure (1,013 bar) and at a temperature of 15 C 2.9 solvent a
42、cetylene 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 acetone; “DMF” for dimethylformamide. 2.10 specified solvent content acetylene cylinders weight of solvent that the acetylene cyli
43、nder shall contain in accordance with the type approval 2.11 tare acetylene cylinders reference weight of the acetylene cylinder including the specified solvent content 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 i
44、s 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 cylinders in bundles, see ISO 13088. 2.11.1 tare A acetylene cylinders sum of the weights of the empty cylinder shell, the porou
45、s 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 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.
46、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 the maximum acetylene charge, respectively NOTE 1 For solvent-free cylinders, the total weight is tare F plus the maximum acetylene c
47、ontent. NOTE 2 The stamped value can be less than the approved value. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 11372:2011ISO 11372:2011(E) ISO 2011 All rights re
48、served 32.13 working pressure acetylene cylinders settled pressure 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 cylinder 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
