1、BRITISH STANDARD Transportable gas cylinders Periodic inspection and testing n i i o o 01 seamless aluminium alloy gas cylinders The European Standard EN 1802:2002 has the status of a British Standard ICs 23.020.30 BS EN 1802:2002 Wk present to the responsible European committee any enquiries on the
2、 interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cr oss-r e fer enc e s The Brit
3、ish Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A Britis
4、h Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front
5、cover, an inside front cover, the EN title page, pages 2 to 47 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 25 March 2002 ISBN O 580 39412 3 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM February 2002 ICs 23.020.30 English
6、 version Transportable gas cylinders - Periodic inspection and testing of seamless aluminium alloy gas cylinders Bouteilles gaz transportables - Contrles et essais priodiques des bouteilles gaz sans soudure en alliages dal um n iu m Ortsbewegliche Gasflaschen - Wiederkehrende Prfung von nahtlosen Ga
7、sflaschen aus Aluminiumlegierung This European Standard was approved by CEN on 8 November 2001 CEN members are bound to comply with the CENLENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-dat
8、e lists and bibliographical references concerning such national standards may be obtained on application to the 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 re
9、sponsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Ma
10、lta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2002 CEN All rights of exploitation in any form and by any
11、means reserved worldwide for CEN national Members. Ref. No. EN 1802:2002 E EN 1802:2002 (E) Contents Foreword 3 Introduction . 4 1 Scope 5 2 Normative references 5 3 Intervals between periodic inspection and test 6 4 List of procedures for periodic inspection and test . 6 5 Identification of cylinde
12、r and preparation for inspection and test . 7 6 External visual inspection . 7 7 Internal visual inspection 8 8 Supplementary tests 8 9 Inspection of cylinder neckshoulder 8 10 Pressure test or ultrasonic test 9 11 Inspection of valve . 10 12 Final operations . IO 13 Rejection and rendering cylinder
13、 unserviceable 12 Annex A (informative) Gas cylinders manufactured according to National Regulations . 13 Annex B (normative) Inspection periods . 15 Annex C (normative) Description. evaluation of defects and conditions for rejection of seamless aluminium alloy gas cylinders at time of visual inspec
14、tion 16 Annex D (normative) Procedure to be adopted when a cylinder valve is suspected to be obstructed . 22 Annex E (normative) Cleaning of aluminium alloy gas cylinders . 25 Annex F (normative) Proof pressure test of gas cylinders 26 Annex G (normative) Volumetric expansion testing of gas cylinder
15、s 27 Annex H (normative) Ultrasonic test 35 Annex I (informative) Inspection and maintenance of valves and their connections: recommended procedures 46 Bibliography 47 2 EN 1802:2002 (E) Foreword This document EN 1802:2002 has been prepared by Technical Committee CEN/TC 23 “Transportable gas cylinde
16、rs“, 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 August 2002, and conflicting national standards shall be withdrawn at the latest by August 2002. In th
17、is standard the annexes B, C, D, E, F, G and H are normative and the annexes A and I are informative. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports the objectives of the framework Directives on Transport
18、of Dangerous Goods. This European Standard has been submitted for reference into the RID and/or the technical annexes of the ADR. Therefore in this context the standards listed in the normative references and covering basic requirements of the RID/ADR not addressed within the present standard are no
19、rmative only when the standards themselves are referred to in the RID and/or the technical annexes of the ADR. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Repu
20、blic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 3 EN 1802:2002 (E) I nt rod uction The principal aim of a periodic inspection and testing procedure is that at the completion
21、 of the test the cylinders may be reintroduced into service for a further period of time. Experience of the inspection and testing of cylinders which is specified in this European Standard is an important factor when determining whether a cylinder should be returned into service. 4 EN 1802:2002 (E)
22、1 Scope This European Standard specifies the requirements for periodic inspection and testing of seamless aluminium alloy transportable gas cylinders (single or those from bundles) intended for compressed and liquefied gases under pressure, of water capacity from 0,5 I up to 150 I. NOTE As far as pr
23、acticable, this standard may also be applied to cylinders of less than 0,5 I water capacity. This standard specifies the requirements for periodic inspection and testing to verify the integrity of such gas cylinders to be reintroduced into service for a further period of time. It also defines a proc
24、edure to qualify existing gas cylinders for free movement between member states of the European Union (see annex A). This standard does not apply to periodic inspection and testing of acetylene cylinders or composite (fully wrapped or hoop-wra pped) aluminium alloy cylinders. 2 Normative references
25、This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate place in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these pub
26、lications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 473, Non-destructive testing - Qualification and certification of NDT personnel - General princ
27、iples. EN 629-2, Transportable gas cylinders - 25E taper thread for connection of valves to gas cylinders - Part 2: Gauge inspection. EN 837-1, Pressure gauges - Part I: Bourdon tube pressure gauges - Dimensions, metrology, requirements and testing. EN 837-3, Pressure gauges - Part 3: Diaphragm and
28、capsule pressure gauges - Dimension, metrology, requirements and testing. EN 1089-1, Transportable gas cylinders - Gas cylinder identification (excluding LPG) - Part I: Stampmarking. EN 1795, Transportable gas cylinders (excluding LPG) - Procedures for change of gas service. prEN 1964-2, Transportab
29、le gas cylinders - Specification for the design and construction of refillable transportable seamless steel gas cylinders of water capacities from 0,s litre up to and including 150 litres - Part 2: Cylinders made of seamless steel with an R, value of I100 MPa and above. EN 1975, Transportable gas cy
30、linders - Specification for the design and construction of refillable transportable seamless aluminium and aluminium alloy gas cylinders of capacity from 0,s litre up to 150 litre. EN IS0 1 1 114-1, Transportable gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part
31、I: Metallic materials (IS0 I I 114-1: 1997). EN IS0 1 1 114-2, Transportable gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 2: Non-metallic materials (IS0 I I I 14-2:ZOOO). EN IS0 13341, Transportable gas cylinders - Fitting of valves to gas cylinders (IS0 133
32、4 I: 1997). 5 EN 1802:2002 (E) 3 Intervals between periodic inspection and test In order to ensure continued safe operation, cylinders shall be periodically submitted to inspection and test in accordance with annex B. A cylinder shall fall due for a periodic inspection and test on its first receipt
33、by a filler after the expiry of the interval in annex B. NOTE RID/ADR regulations and also gives recommendations which could be subsequently adopted by the RID/ADR regulations. Table B.l gives a list of the intervals between periodic inspections for some gases which complies with the current Provide
34、d the cylinder has been subjected to normal conditions of use and has not been subjected to abusive and abnormal conditions rendering the cylinder unsafe, there is no general requirement for the user to return a gas cylinder before the contents have been used even though the test interval may have l
35、apsed. However it is suggested that cylinders are retested within a period not exceeding twice the time interval. In the case of cylinders used for emergency purposes (e.g. fire extinguishers, breathing apparatus), it is the responsibility of the person in possession (owner or user) to submit it for
36、 a periodic inspection within the interval specified in annex B or as specified in the relevant cylinder design standard/regulation, if this is shorter. 4 List of procedures for periodic inspection and test The inspection and test shall be carried out only by competent persons who shall ensure that
37、the cylinders are fit for continued safe use. NOTE A competent person is a person who has the necessary technical knowledge, experience and authority to assess and approve materials for use with gases and to define any special conditions of use that are necessary. Such a person will also normally be
38、 formally qualified in an appropriate technical discipline. Each cylinder shall be submitted to periodic inspection and test. The following procedures form the requirements for such inspection and test, and are explained more fully in later clauses: - identification of cylinder and preparation for i
39、nspection and test (clause 5); - external visual inspection (clause 6); - internal visual inspection (clause 7); - supplementary tests (clause 8); - inspection of cylinder neck/shoulder (clause 9); - pressure test or ultrasonic test (clause 1 O); - inspection of valve (clause 11); - final operations
40、 (clause 12); - rejection and rendering cylinders unserviceable (clause 13). Where cylinders are manufactured according to National Regulations and are intended to be qualified under the Transportable Pressure Equipment Directive (TPED) for free movement and use between member states of the European
41、 Union, additional requirements are specified in annex A. It is recommended that the above listed tests are performed in the suggested sequence. In particular the internal visual examination (clause 7) should be carried out before the pressure test or ultrasonic test (clause IO). Cylinders which fai
42、l the inspection or tests shall be rejected (see clause 13). When, after the above tests, doubts still exist as to the extent of a defect or the condition of a cylinder, then additional tests may be performed in accordance with clause 8, until such doubts are positively resolved or the cylinder shal
43、l be rendered unserviceable. Some cylinders rejected during periodic inspection and test may be recovered in accordance with annex C. 6 EN 1802:2002 (E) Mechanical properties of aluminium alloy cylinders can be affected by heat. Therefore, the maximum temperature for any operation shall be limited.
44、(See 12.1.2.) 5 Identification of cylinder and preparation for inspection and test Before any work is carried out, the relevant cylinder data (e.g. see EN 1089-1) and its contents and ownership shall be identified. The cylinders shall be depressurised and emptied in a safe, controlled manner before
45、proceeding. Particular attention shall be given to cylinders containing flammable, oxidising and toxic gases to eliminate risks at the internal inspection stage. Cylinders with incorrect markings, unknown gas contents, or those which cannot be safely emptied of gas, shall be set aside for special ha
46、ndling. Cylinders with inoperative or blocked valves may be treated as outlined in annex D. Provided the requirements above have been complied with, and the cylinder has been depressurized safely, the valve shall be removed. Similarly in the case of cylinder bundles, not equipped with cylinder valve
47、s, the connecting tee junction shall also be checked to determine whether the gas is able to pass freely from the cylinder to atmosphere. 6 External visual inspection 6.1 Preparation for external visual inspection Each cylinder shall be cleaned and have all loose coatings, corrosion products, tar, o
48、il or other foreign matter removed from its external surface by a suitable method, e.g. by brushing, shot blasting (under closely controlled conditions), water jet abrasive cleaning, chemical cleaning (see annex E or consult the cylinder manufacturer) or other suitable methods. Alkaline solutions an
49、d paint strippers which are harmful to aluminium and its alloys shall not be used. Care shall be taken at all times to avoid damaging the cylinder, or removing excess amounts of cylinder wall. If fused nylon, polyethylene or a similar coating has been applied and is seen to be damaged, or prevents a proper inspection, then the coating shall be removed. If the coating is removed by the application of heat at a temperaturehme exceeding the limits specified in 12.1.2 or shows signs of heat damage, the manufacturer shall be consulted before the cylinder is returned to service
