1、BS EN ISO 24431:2016Gas cylinders Seamless,welded and compositecylinders for compressed andliquefied gases (excludingacetylene) Inspection at timeof filling (ISO 24431:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 24431:2016 BRITISH STANDARDNational
2、forewordThis British Standard is the UK implementation of EN ISO 24431:2016. It supersedes BS ISO 24431:2006 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PVE/3/7, Gas containers - Gas cylinder (receptacle) operations.A list of organizations represen
3、ted on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 8
4、2547 7 ICS 23.020.35 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dE
5、UROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 24431 November 2016 ICS 23.020.35 English Version Gas cylinders - Seamless, welded and composite cylinders for compressed and liquefied gases (excluding acetylene) -Inspection at time of filling (ISO 24431:2016) Bouteilles gaz - Bouteilles gaz
6、comprims et liqufis ( lexception de lactylne) sans soudure, soudes et composites - Contrle au moment du remplissage (ISO 24431:2016) Gasflaschen - Nahtlose, geschweite und Composite-Flaschen fr verdichtete und verflssigte Gase (ausgenommen Acetylen) - Inspektion zum Zeitpunkt des Fllens (ISO 24431:2
7、016) This European Standard was approved by CEN on 13 September 2016. 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 bibliographi
8、cal 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 translation under the responsibility
9、 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, Former Yugoslav Republic of
10、Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION
11、EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 24431:2016 EBS EN ISO 24431:2016EN ISO 24431:2016 (E) 3 European foreword This
12、 document (EN ISO 24431:2016) has been prepared by Technical Committee ISO/TC 58 “Gas cylinders” 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
13、by publication of an identical text or by endorsement, at the latest by May 2017, and conflicting national standards shall be withdrawn at the latest by May 2017. 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
14、shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
15、 following countries are bound to implement this European Standard: 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, Netherla
16、nds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 24431:2016 has been approved by CEN as EN ISO 24431:2016 without any modification. BS EN ISO 24431:2016ISO 24431:2016(E)Foreword ivIntroduction v1
17、 Scope . 12 Normative references 13 Terms and definitions . 14 Identification of cylinder owner 45 Filling inspection 55.1 General . 55.2 Verification of serviceable condition of individual cylinders before filling 55.2.1 General criteria 55.2.2 Exterior condition . 55.2.3 Interior condition 75.2.4
18、Cylinder tare 75.2.5 Calculation of weight of gas to be filled into the cylinder . 85.2.6 Provisions for visually inspecting cylinders fitted with coverings . 85.2.7 Verification of the integrity of permanent attachments 95.2.8 Verification of valve integrity and suitability 95.2.9 Provisions for pa
19、lletized cylinders 105.2.10 Rejected cylinders 105.3 Verification during filling 105.4 Verification after filling . 105.4.1 General. 105.4.2 Verification of gas tightness 105.4.3 Verification of correct filling pressure .115.4.4 Verification of correct filling weight 115.4.5 Verification of valve pr
20、otection 115.4.6 Verification of correct product labelling 116 Cylinders rejected for filling 11Annex A (informative) Residual pressure check .12Annex B (informative) Example of a procedure to establish a correct tare 13Bibliography .14 ISO 2016 All rights reserved iiiContents PageBS EN ISO 24431:20
21、16ISO 24431:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a sub
22、ject 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 work. ISO collaborates closely with the International Electrotechnical Commission (I
23、EC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance 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
24、noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention 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 identifyi
25、ng any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience
26、of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the foll
27、owing URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 58, Gas cylinders, Subcommittee SC 4, Operational requirements for gas cylinders.This second edition cancels and replaces the first edition (ISO 24431:2006), which has been technically revised with the fol
28、lowing changes. This edition has been restructured and includes additional provisions for the inspection before, during and after filling of composite cylinders (Types 2 to 5 inclusive).iv ISO 2016 All rights reservedBS EN ISO 24431:2016ISO 24431:2016(E)IntroductionThis International Standard covers
29、 requirements that reflect current practice and experience.Each transportable gas cylinder is inspected at the time of filling in order to establish that it has no defects which render it unsafe for filling or continued use, it can be identified and complies with the relevant requirements with regar
30、d to marking (e.g. within test period, labelling, colour coding and completeness of its accessories), and its valve functions satisfactorily.The cylinder filling inspection is carried out exclusively by persons who have the appropriate training and competencies, so as to ensure that each cylinder is
31、 safe for continued use.Guidance and requirements provided in this International Standard allow fillers to determine when cylinders should be rejected for filling. This International Standard is intended to be used as a basis for developing specific operating procedures for a filling operation.CAUTI
32、ON Some of the tests specified in this International Standard involve the use of processes which could lead to a hazardous situation.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 the application of t
33、he UN Model Regulations.1Attention is drawn to requirements in the 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 this International St
34、andard 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 Standard), the word “weight” continues to be used to mean “mass”
35、, although this practice is deprecated (see ISO 80000-4). ISO 2016 All rights reserved vBS EN ISO 24431:2016BS EN ISO 24431:2016Gas cylinders Seamless, welded and composite cylinders for compressed and liquefied gases (excluding acetylene) Inspection at time of filling1 ScopeThis International Stand
36、ard specifies the inspection requirements at the time of filling, and applies to seamless or welded transportable gas cylinders made of steel or aluminium-alloy (Type 1), and for composite transportable gas cylinders (Types 2 to 5 inclusive) for liquefied or compressed gases of a water capacity up t
37、o 150 l. It may be applicable to cylinders and tubes with a water capacity between 150 l and 450 l, provided they are inspected and filled as individual cylinders and tubes.This International Standard does not apply to acetylene cylinders, bundles of cylinders, tubes, multiple-element gas container
38、(MEGCs) or battery vehicles.This International Standard may also be applicable to LPG. For specific LPG applications, refer to ISO 10691.For cylinders manifolded in bundles, refer to ISO 11755.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this docu
39、ment and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 6406, Gas cylinders Seamless steel gas cylinders Periodic inspection and testingISO 7225,
40、 Gas cylinders Precautionary labelsISO 10460, Gas cylinders Welded carbon-steel gas cylinders Periodic inspection and testingISO 10461, Gas cylinders Seamless aluminium-alloy gas cylinders Periodic inspection and testingISO 11623, Gas cylinders Composite construction Periodic inspection and testingI
41、SO 13769, Gas cylinders Stamp markingISO 25760, Gas cylinders Operational procedures for the safe removal of valves from gas cylinders3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1compressed gasgas which when packaged under pressure for transp
42、ort is entirely gaseous at 50 CNote 1 to entry: This category includes all gases with a critical temperature less than or equal to 50 C.3.2coveringprotective or non-protective, transparent or non-transparent, device or attachment that can interfere with an external visual inspectionINTERNATIONAL STA
43、NDARD ISO 24431:2016(E) ISO 2016 All rights reserved 1BS EN ISO 24431:2016ISO 24431:2016(E)3.3cylinder markingpermanent and durable information on the cylinder required by the relevant design standard and/or ISO 13769 and the regulations in the country(ies) of use3.4empty weightmass of the cylinder
44、including all permanent attachments (e.g. neckring, footring), but excluding the mass of valve, valve cap or valve guard and any coatingNote 1 to entry: See Introduction for terminology regarding weight and mass.3.5examinationprocess having the object of determining a condition by judgementNote 1 to
45、 entry: The examination results in a pass or fail or further measurement, testing or gauging.SOURCE: ISO 10286:20153.6fibrecontinuous filament of glass, aramid, carbon or other material3.7fillerperson (or persons) responsible for inspection (3.10) prior to, during and immediately after filling, who
46、has received an appropriate level of training for the work involved3.8filling pressurepressure to which a cylinder is filled at the time of fillingNote 1 to entry: Filling pressure varies according to the gas temperature in the cylinder, which is dependent on the charging parameters and ambient cond
47、itions. It is normally higher than the working pressure (3.27) (because of the heat of compression) and always less than the test pressure.3.9filling ratioratio of the mass of gas to the mass of water at 15 C that would fill completely a cylinder fitted ready for useNote 1 to entry: Synonyms are fil
48、ling factor and filling degree, often expressed in kg/l or similar.SOURCE: ISO 10286:20153.10inspectionevaluation of conformity by observation and judgment accompanied as appropriate by measurement, examination (3.5), testing or gaugingSOURCE: ISO 10286:20153.11linerinner portion of the composite cy
49、linder comprising a metallic or non-metallic vessel, whose purpose is to both contain the gas and transmit the gas pressure to the composite overwrap2 ISO 2016 All rights reservedBS EN ISO 24431:2016ISO 24431:2016(E)3.12liquefied gasgas which, when packaged under pressure, is partially liquid at temperatures above 50 CNote 1 to entry: A distinction is made between high pressure liquefied gas, a gas with a critical temperature between 50 C and +65 C, and low pressure liquefied gas, a gas wit
