EN 1920-2000 en Transportable Gas Cylinders - Cylinders for Compressed Gases (Excluding Acetylene) - Inspection at Time of Filling《可运输气瓶 液化气瓶(已炔气除外)灌充时的检验》.pdf

1、STD-BSI BS EN 1920-ENGL 2000 = Lb24bb7 0870332 983 BRITISH STANDARD mansportable gas cylinders - Cylinders for compressed gases (excluding acetylene) - Inspection at time of filling The European Standard EN 19202000 has the status of a British Standard ICs 23.020.30 NO COPYING WITHOUT BSI PERMISSION

2、 EXCEPT AS PERMITTED BY COPYRIGET LAW BS EN 1920:2000 STD-BSI BS EN 1920-ENGL 2000 = lbZqbb9 0870333 8LT W BS EN 1920:2000 Amd. No. National foreword Date Comments This British Standard is the official English language version of EN 19202000. The UK participation in its preparation was entrusted by

3、Technical Committee wE/3, Gas containers, to Subcommittee FVEWi, Gas cylinder (receptacle) operations, which has the responsibility to: - aid enquirers to understand the te$ - present to the responsible European committee any enquiries on the - monitor related international and European developments

4、 and promulgate , interpretation, or proposals for change, and keep the UK interests informed; them in the UK A list of organizatons represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standasds which implement international or European publicat

5、ions 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 British Standard does not purport to include all the necessary provisi

6、ons 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 cover, an inside front cover, the EN title page, pages 2 to 12,

7、an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee an

8、d comes into effect on 15 September 2000 0 BSI 09-2000 ISBN O 580 36473 9 STD-BSI BS EN 1920-ENGL 2000 m LbZqbbS 0870334 75b m EUROPEAN STANDARD NORME EUROPENNE EUROPASCHE NORM EN 1920 July 2000 ICC 23.020.30 English version Transportable gas cylinders - Cylinders for compressed gases (excluding ace

9、tylene) - Inspection at time of filling Bouteilles gaz transpottables - Bouteilles a gaz comprims ( lexclusion de Iaciyine) - Contrle au moment du remplissage Ortsbewegliche Gasflaschen - Gasflaschen fur verdichtete Gase (ausgenommen Acetyien) - Prfung zum Zeitpunkt des Fllens This European Standard

10、 was approved by CEN on 2 July 2000. CEN members are bound to comply with the CENICENELEC Internal Regulations which stipulate the condlions for giving this Europeen Standard the status of a national standard without any alteration. Up-todate lists and bibliographical references concerning sich nati

11、onal standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by trnslation under the responsibility of a CEN member into its own language and not

12、ified to the Central Secretariat has the same status as tie official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Swizerland a

13、nd United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FUR NORMUNG COMITE EUROPEEN DE NORMALISATION Central Secretariat: rue de Stassart, 36 8-1050 Brussels 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. E

14、N 1920: 2000 E STD-BSI BS EN 1920-ENGL 2000 lb24bb9 0870335 b92 Page 2 EN 1920:2000 Contents Page 3 Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Introduction . 5 1 Scope 2 Normative references . , . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 3 Terms and definitions 6 4 Filling inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17、5 Description of inspection items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . , . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . 6 Annex A(infomative) Procedure to be adopted when a cylinder

18、valve is suspected to be obstructed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19、. . 10 O BSI 09-2000 STD-BSI BS EN L720-ENGL 2000 Lb24bb9 087033b 529 Page 3 EN 1920:2000 Foreword This European Standard has been prepared by Technical Committee CENTC 23, Transportable gas cylinders, the Secretariat of which is held by BSI. This European Standard shall be given the status of a nat

20、ional standard, either by publication of an identical text or by endorsement, at the latest by January 2001 and conflicting national standards shall be withdrawn at the latest by January 200 1. According to the CENKENELEC Internal Regulations, the national standards organizations of the following co

21、untries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Q BSI 09-2000 STD-BSI BS EN L920-ENGL 2000 Lb24bb

22、7 0870337 qb5 Page 4 EN 1920:2000 Introduction This standard covers requirements which reflect current practice and experience. Each transportable gas cylinder is inspected at time of filling in order to establish that: - it has no defects such that the cylinder is unsafe for filling or continued us

23、e; - it can be identified and complies with the relevant requirements with regard to marking, labelling, colour coding and completeness of its accessories; - its valve functions satisfactorily. The cylinder filling inspection shall be carried out only by persons who are trained and competent in the

24、subject, for the purpose of ensuring that a cylinder is safe for continued use. Annex A is for information only and is not a mandatory part of this standard. Q BSI 09-2000 - STDOBSI BS EN 1920-ENGL 2000 W LbZibb9 0870338 3Tl Page 5 EN 1920:2000 1 Scope This standard - specifies the inspection requir

25、ements at the time of filling and applies to seamless or welded transportable gas cylinders made of steel or aluminium alloy for compressed gases (excluding acetylene) of water capacity from 0,5 litre up to 150 litres. It also applies, as far as practicable, to cylinders of less than 0,5 litre water

26、 capacity; - does not apply to manifolded bundles or manifolded trailer cylinders. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publicat

27、ions are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications 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 amend

28、ments). prEN 1802: 1998 prEN 1803: 1998 prEN 1968:1998 EN IS0 11 114-1 prEN IS0 11 114-2:1999 Transportable gas cylinders - Periodic inspection and testing of seamless aluminium alloy gas cylinders. Transportable gas cylinders - Periodic inspection and testing of welded carbon steel gas cylinders (e

29、xcluding LPG). Transportable gas cylinders - Periodic inspection and testing of seamless steel gas cylinders. Transportable gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 1: Metallic materials (IS0 11114-1:1997). Transportable gas cylinders - Compatibility of

30、cylinder and valve materials with gas contents - Part 2: Non-metallic materials (ISO/FDIS 11 114-211999). 3 Terms and definitions For the purpose of this standard the following terms and definitions apply. 3.1 filling pressure pressure to which a cylinder is filled at the time of filling NOTE: It va

31、ries according to the gas temperature in the cylinder, which is dependent on the charging parameters and the ambient conditions. Q BSI 09-2000 STD-BSI BS EN L920-ENGL 2000 lb2qbb7 0870337 238 = Page 6 EN 1920:2000 3.2 compressed gas gas which, when packaged under pressure for transport, is entirely

32、gaseous at all temperatures above -50 OC NOTE: All gases with a critical temperature below -50 “C belong to this category. 3.3 working pressure settled pressure at a uniform temperature of 288 K (1 5 OC) for a full gas cylinder 3.4 filler person or persons responsible for inspection prior to, during

33、 and immediately after filling and who has received an appropriate level of training for the work involved, and has access to all necessary data for the cylinder, valve and all other fittings used EN 19 19:2000 3.5 paiiet device for handling several cylinders at the same time 4 Filling inspection Ea

34、ch cylinder shall be submitted to an inspection prior to, during and immediately after filling. The following items shall be covered by a filling inspection: - verification of serviceable condition (see 5.1); - identification of cylinder for suitability for filling (see 5.2); - identification of cyl

35、inder owner, if required (see 5.3); - verification of internal cylinder condition (see 5.4); - verification of integrity of neck ring/threaded boss (see 5.5); - verification of valve integrity and suitability (see 5.6); - check for correct filling pressure (see 5.7). 5 Description of inspection item

36、s 5.1 Verification of serviceable condition It shall be established that each cylinder, whether individual or palletized, is in a serviceable condition. Cylinders which have been found to be non-serviceable shall be clearly identified according to written procedures in the filling company. Q BSI 09-

37、2000 STD*BSI BS EN 1720-ENGL 2000 1b2+bbS 0870390 T5T Page 7 EN 1920:2000 a) Individual cylinder Before a cylinder is filled it shall be established that the cylinder is clean and fiee of foreign material (Le. such that the cylinder can be assessed for mechanical damage that would prevent it fiom be

38、ing filled safely) and does not exhibit any abnormalities such as arc burns, bulging, severe corrosion, heavfire damage or significant mechanical damage. In case of doubt, rejection criteria described in prEN 1968: 1998, prEN 1802: 1998 or prEN 1803: 1998, as appropriate, shall be applied. NOTE: It

39、is particularly important that the base of each welded cylinder is inspected for corrosion or rusting. Cylinders exhibiting such evidence should not be filled until properly evacuated, cleaned and painted. b) Palietized cylinder A filler may only submit a pallet for filling, without unloading the cy

40、linders, if a written procedure exists within the filling company and its representatives which ensures that only cylinders in a serviceable condition are filled see a). 5.2 Identification of cylinder for suitability for filling Before filling a cylinder, it shall be established that: - the cylinder

41、 has not passed its due date for retest; - the cylinder is compatible with the intended gas content and filling pressure; - the cylinder is permitted for filling in the country of the filling station; - the proposed contents correspond with any identification label and shoulder colour on the cylinde

42、r. If there is any disagreement between the proposed content and such identification, the cylinder shall not be filled. 5.3 Identification of cylinder owner If required, before filling, the identity of the cylinders owner shall be established and his authorization to fill the cylinder obtained. 5.4

43、Verification of internal cylinder condition In case of liquid ingress for some gadcylinder material combinations, internal corrosion can occur (see EN IS0 11 114-1). For such gases (e.g. 02/02 mixtures, Cch mixtures), filling stations shall follow a written procedure which shall be based upon experi

44、ence, dependent upon service conditions. For example, such cylinders without special valves which prevent ingress of contamination, e.g. non-returdpositive pressure valves, or where there is a risk of internal corrosion of the cylinder material, shall be checked for liquid ingress, when there are do

45、ubts about its internal condition. Q BSI 09-2000 Page 8 EN 1920:2000 This check shall be carried out by using a residual pressure check, or check weighing, or moisture analysis or other method which confirms the presence of liquid contamination. If liquid is detected, a visual internal inspection sh

46、all be performed by a competent person, according to prEN 1968:1998, prEN 1802:1998 or prEN 1803:1998, as appropriate. 5.5 Verification of integrity of neck rinuthreaded boss Before filling a cylinder, it shall be established that the neck rindthreaded boss and guard (if fitted) are fit for the inte

47、nded purpose and that the neck ring, if one exists, is not loose. If there is a permanent valve guard or a welded-on shroud, it shall be checked to ensure that it is properly attached. 5.6 Verification of valve integrity and suitability 5.6.1 Prior to each fill, it shall be established that the inst

48、alled valve is suitable for the intended gas (see EN IS0 1 11 14-1 and prEN IS0 Il 114-2: 1999) and is in a satisfactory condition. As a minimum it shall be established that: - the valve is easy to operate; - the valve is fkee from contaminants; - the handwheel, or key operated spindle, is operable;

49、 - the safety device, if present, is undamaged; - the outlet threads and body are undamaged; - the valve attaches correctly to the filling connector. 5.6.2 During the filling cycle of a cylinder, the filler shall determine: - that the valve is not blocked (see annex A) and that the operation is progressing satisfactorily (e.g. temperature rise checks of cylinder); - that the valve does not leak in the open position (e.g. by the use of a gas compatible leak test fluid). If leakage is suspected check for example at the bonnet or at the gland