BS EN ISO BRITISH STANDARD 10432:2004 Petroleum and natural gas industries - Downhole equipment Subsurface safety valve equipment TheEuropeanStandardENIS010432:2004has the statusofa British Standard Confirmed July 2009 ICS 75.180.10 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSENISO10432:2004 National foreword This British Standard is the official English language version of EN ISO 10432:2004.It is identical with ISO 10432:2004. It supersedes BS ENISO10432:1999which is withdrawn. The UK participation initspreparation was entrusted by Technical Committee PSE/17, Materials and equipment for petroleum, petrochemical and natural gas industries, to Subcommittee PSE/17/-/4, Drilling and production equipment, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee 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 subcommittee 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 befound 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 ofitself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages i to v, a blank page, pages 1 to 77 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication This British Standard was published under the authority Amd. No. Date Comments of the Standards Policy and Strategy Committee on 12January2005 BSI 12 January 2005 ISBN0580452115 EN ISO 10432 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM December2004 ICS 75.180.10 SupersedesENISO10432:1999 English version Petroleum and natural gas industries - Downhole equipment Subsurfacesafetyvalveequipment(is010432:2004) Industries du petrole et du gaz naturel - Equipement de forage vertical - Vannes de protection de fond de puits (ISO 10432:2004) This European Standard was approvedby CEN on 10December2004. 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 alteration. 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 translation versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia Slovenia, Spain, Sweden, Switzerland and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels @2004CEN All rights of exploitation in any form and by any means reserved Ref.No.ENISO 10432:2004:E worldwide for CEN national Members. ENIS0 10432:2004 Foreword Thisdocument (EN ISO10432:2004)has beenpreparedbyTechnical Committee ISO/TC 67 "Materials, equipment and offshore structures for petroleum and natural gas industr