BS-EN-12300-1999.pdf
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1、BRITISH STANDARD BS EN 12300:1999 Incorporating Amendment No. 1 Cryogenic vessels Cleanliness for cryogenic service The European Standard EN 12300:1998, with the incorporation of Amendment A1:2006, has the status of a British Standard ICS 27.200 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Oct
2、28 06:50:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12300:1999 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 February 1999 BSI 2006 ISBN 0 580 3038
3、6 1 National foreword This British Standard is the English language version of EN 12300:1998, including amendment A1:2006. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Tags indicating changes to CEN text carry the number of the CEN amendment. F
4、or example, text altered by CEN amendment 1:2006 is indicated by !“. The UK participation in its preparation was entrusted to Technical Committee PVE/18, Cryogenic vessels, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secret
5、ary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalog
6、ue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the
7、 text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cov
8、er, an inside front cover, the EN title page, pages 2 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 1637931 July 2006See national foreword Licensed Copy: sheffieldun sh
9、effieldun, na, Sat Oct 28 06:50:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and b
10、y any means reserved worldwide for CEN national Members. EUROPEAN STANDARDEN 12300 NORME EUROPE ENNE EUROPA ISCHE NORM November 1998 ICS 27.200 Descriptors: pressure vessels, cryogeny, area, cleanliness checks, cleaning, protection, specifications, marking English version Cryogenic vessels Cleanline
11、ss for cryogenic service Re cipients cryoge niques Proprete Kryo-Beha lter Reinheit fu r den tiefkalten Betrieb 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 alt
12、eration. Up-to-date lists and bibliographical references concerning such national 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 tran
13、slation under the responsibility of a CEN member into its own language and notified to the Central Secretariat 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,
14、 Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. + A1 May 2006 This European Standard was approved by CEN on 1 September 1998. Ref: No. EN 12300:1998 E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 06:50:24 GMT+00:00 2006, Uncontrolled Copy,
15、(c) BSI Page 2 EN 12300:1998 BSI 02-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 268, Cryogenic vessels, the Secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical t
16、ext or by endorsement, at the latest by May 1999, and conflicting national standards shall be withdrawn at the latest by May 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria
17、, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 4Requirements3 5Cleaning procedure3 6Clean
18、liness evaluation3 7Post cleaning protection3 8Marking4 Annex A (informative) Inspection methods5 Foreword to amendment A1Foreword to amendment A1 This document (EN 12300:1998/A1:2006) has been prepared by Technical Committee CEN/TC 268 “Cryogenic vessels”, the secretariat of which is held by AFNOR.
19、 This Amendment to the European Standard EN 12300:1998 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2006, and conflicting national standards shall be withdrawn at the latest by November 2006. This document h
20、as been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to im
21、plement this European Standard: Austria, Belgium, 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 Uni
22、ted Kingdom. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 06:50:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 12300:1998 BSI 02-1999 1 Scope This stand
23、ard specifies the minimum requirements for the cleanliness of all surfaces of cryogenic vessels and associated accessories that are in contact with the cryogenic fluid at any expected operating conditions. This standard defines the acceptable level of surface and particle contamination to minimize t
24、he risk of malfunction of equipment and ensure safety against ignition when in contact with oxygen or oxidizing fluids (see EN 720-2). 2 Normative references EN 720-2, Transportable gas cylinders Gases and gas mixtures Part 2: Determination of flammability and oxidizing ability of gases and gas mixt
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