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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1984:2000 The Europ
2、ean Standard EN 1984:2000 has the status of a British Standard ICS 23060.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Industrial valves Steel gate valves This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published un
3、der the authority of the Standards Committee and comes into effect on 15 April 2000 BSI 04-2000 ISBN 0 580 35958 1 BS EN 1984:2000 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the official English language version of EN 1984:2000. It supersedes
4、BS 5157:1989 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PSE/7, Valves to Subcommittee PSE/7/1, Valves Basic standards, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquir
5、ies on the 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. Cross-references The Br
6、itish 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 British
7、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 co
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