BS EN ISO 20312:2011 BS Standards Publication Petroleum and natural gas industries Design and operating limits of drill strings with aluminium alloy components (IsO 20312:2011) NO COPYING WITHOUT BSIPERMISSION EXCEPT AS PERMITTED BYCOPYRIGHT LAW BSi raisingstandardsworldwider BSENISO20312:2011 BRITISHSTANDARD National foreword This British Standard is the UK implementation of EN ISO 20312:2011 The UK participation in its preparation was entrusted to Technical Committee PSE/17, Materials and equipmentforpetroleum, petrochemical and natural gas industries. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @BSI 2011 ISBN9780580542695 ICS75.180.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2011. Amendments issued since publication Date Textaffected EUROPEANSTANDARD EN ISO 20312 NORMEEUROPEENNE EUROPAISCHENORM October 2011 ICS 75.180.10 English Version Petroleum and natural gas industries s - Design and operating limits of drill strings swithaluminiumalloycomponents(iso 20312:2011) Industries du petrole et du gaz naturel - Conception et Erdol- und Erdgasindustrie - Auslegung und limites de fonctionnement des garnitures de forage en Einsatzgrenzen von Bohrstrangen aus Aluminium- alliage d'aluminium (ISO 20312:2011) Bohrgestangen (ISO 20312:2011) This European Standard was approved by CEN on 14 October 2011. 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 This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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 United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG Management Centre:Avenue Marnix17, B-1000 Brussels @2011CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20312:2011: E worldwide for CEN national Members. BSENISO20312:2011 ENISO20312:2011(E) Foreword equipment and offshore structures for petroleum, petrochemical and natural gas industries" in collaboration petrochemical and natural gas industries" 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 text or by endorsement, at the latest by April 2012, and conflicting national standards shall be withdrawn at the latest by April 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,