EN IS0 10427-1 EUROPEAN STANDARD NORME EUROPEENNE EUROPAISCHE NORM September 2024 ICS 75.180.10 Supersedes EN IS0 10427-1:2001 English Version Oil and gas industries including lower carbon energy Equipment for well cementing - Part 1: Casing bow-spring centralizers (IS0 10427-1:2024) Industries du petrole et du gaz, y compris les énergies O1- und Gasindustrie einschlieflich kohlenstoffarmer a faible teneur en carbone - Equipement de Energietrager - Ausristung fur die Zementation von cimentation de puits - Partie 1: Centreurs de tubes de Tiefbohrungen - Teil 1: Federkorb-Zentrierer fur cuvelage (IS0 10427-1:2024) Futterrohre (IS010427-1:2024) This European Standard was approved by CEN on 27 August 2024. 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by Centrehasthesamestatusastheofficialversions. 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Tirkiye and United Kingdom. cer EUROPEAN COMMITTEEFOR STANDARDIZATION COMITEEUROPEENDENORMALISATION EUROPAISCHESKOMITEEFURNORMUNG CEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels 2024CEN Ref. No. EN ISO 10427-1:2024 E All rightsofexploitationinanyformandbyanymeans reserved worldwide for CEN national Members. EN IS0 10427-1:2024 (E) European foreword This document (EN IS0 10427-1:2024) has been prepared by Technical Committee IS0/TC 67 "Oil and gas industries including lower carbon energy" in collaboration with Technical Committee CEN/TC 12 "Oil and gas industries including lower carbon energy" the secretariat of which is held by NEN. 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of an identical text or by endorsement, at the latest by March 2025, and conflicting national standards shall be withdrawn at the latest by March 2025. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN IS0 10427-1:2001. Any feedback and questions on this document should be directed to the users' national standards body/national committee. A complete listing of these bodies can be found on the CEN website. 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and the United Kingdom. Endorsement notice The text of IS0 10427-1:2024 has been approved by CEN as ENIS0 10427-1:2024 without any modification. Contents Page Foreword. ..iv 1 Scope .1 2 Normative references .1 3 Terms, definitions and abbrevaited terms .1 3.1 Terms and definitions. ..2 3.2 Abbreviated terms Supplements to API Spec 10D, 7th edition (2021) .2 4 4.1 General requirements .2 4.2 Compensating for the mass of the traveling pipe and attachments 4.3 Coated centralizer. 4.4 .2 Centralizer maximum diameter reported after open hole test 4.5 Cent