BRITISH STANDARD BS EN 1092-3:2003 Incorporating Corrigendum No.1 Flanges and their joints-Circular flanges for pipes valves fittings and accessories PN designated- Part 3:Copper alloy flanges The European Standard EN 1092-3:2003 has the status of a British Standard ICS23.040.60 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSEN1092-3:2003 National foreword This British Standard is the official English language version of EN 1092-3:2003 including Corrigendum July 2004.It supersedes BS 4504-3.3:1989 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PSE/15 Flanges which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European mittee any enquiries 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 mittee can be obtained on request to its secretary. 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 Catalogue 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. Summary of pages This British Standard.was This document prises a front cover an inside front cover the EN title page published under the authority pages 2 to 35 and a back cover. of the Standards Policy and Strategy Committee on The BSI copyright notice displayed in this document indicates when the 8 March 2004 document was last issued. Amendments issued si...