SIST EN ISO 9351:2025
(Main)Galvanic anodes for cathodic protection in seawater and saline sediments (ISO 9351:2025)
Galvanic anodes for cathodic protection in seawater and saline sediments (ISO 9351:2025)
The proposed Standard, based upon a revised and updated EN 12496: 2013 will specify the minimum requirements and give recommendations for the chemical composition, the electrochemical properties, the physical tolerances, and the test and inspection procedures for cast galvanic anodes of aluminium, magnesium and zinc alloys for cathodic protection in sea water and saline mud.
The Standard will be applicable to the majority of galvanic anodes used for seawater and saline mud applications, i.e. cast anodes of trapezoidal, "D", or circular cross section and bracelet type anodes.
The general requirements and recommendations of this proposed Standard may also be applied to other anode shapes, e.g. half-spherical, button, etc., which are sometimes used for seawater applications.
Applications for this Standard are in offshore renewables, flood defences, offshore oil and gas, offshore or submarine pipelines, ports and harbours, ships and all applications in which galvanic anodes are used for cathodic protection in sea water and saline muds.
Work is proposed to be undertaken in parallel between ISO TC 156 WG 10 and CEN TC 219 WG3, under ISO lead in accordance with the Vienna Convention. This scope is agreed in principle by both parties.
Galvanische Anoden für den kathodischen Schutz in Seewasser und salzhaltigen Sedimenten (ISO 9351:2025)
Dieses Dokument legt Anforderungen fest und gibt Empfehlungen für die chemische Zusammensetzung, elektrochemische Eigenschaften, physikalische Toleranzen, Prüf- und Inspektionsverfahren für galvanische Gussanoden aus auf Aluminium, Magnesium oder Zink basierende Legierungen für den kathodischen Korrosionsschutz in Meerwasser, salzhaltigem Sediment und Brackwasser.
Dieses Dokument ist anwendbar auf Anoden in Meerwasser und auf Anoden in Brackwasser und salzhaltigen Sedimenten. Informationen zum Salzgehalt können Anhang A entnommen werden.
Dieses Dokument ist anwendbar auf die meisten galvanischen Anoden, die für Meerwasser-, salzhaltige Sediment- und Brackwasseranwendungen verwendet werden, d. h. Gussanoden mit trapez- oder kreisförmigem Querschnitt und Manschettenanoden. Die Anforderungen und Empfehlungen dieses Dokuments können auch auf andere Anodenformen (z. B. halbkugelförmige Anoden, Knopfanoden) angewendet werden, die manchmal für Meerwasseranwendungen verwendet werden.
Obwohl andere Metalle als Werkstoffe von galvanischen Anoden verwendet werden können, um edlere Metalle als Eisen und Stahl zu schützen, z. B. Weicheisen, werden diese in diesem Dokument nicht behandelt.
Anodes galvaniques pour la protection cathodique dans l'eau de mer et les boues salines (ISO 9351:2025)
Le présent document définit des exigences et fournit des recommandations pour la composition chimique, les propriétés électrochimiques, les tolérances physiques et les modes opératoires d’essai et d’inspection des anodes galvaniques coulées en alliages à base d’aluminium, de magnésium et de zinc, utilisées pour la protection cathodique dans l’eau de mer, les sédiments salins et les eaux saumâtres.
L’Annexe A fournit des informations sur les plages de salinité.
Les exigences et les recommandations du présent document peuvent s’appliquer à d’autres formes d’anode pour les anodes coulées, par exemple trapézoïdales, circulaires, demi-sphériques, type bracelet.
Bien que d’autres métaux, tels que le fer doux, puissent être utilisés comme matériau d’anode galvanique pour protéger des métaux plus nobles que le fer et l’acier, ces métaux ne sont pas couverts par le présent document.
Galvanske anode za katodno zaščito v slani vodi in slanih usedlinah (ISO 9351:2025)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2025
Galvanske anode za katodno zaščito v slani vodi in slanih usedlinah (ISO
9351:2025)
Galvanic anodes for cathodic protection in seawater and saline sediments (ISO
9351:2025)
Galvanische Anoden für den kathodischen Schutz in Seewasser und salzhaltigen
Sedimenten (ISO 9351:2025)
Anodes galvaniques pour la protection cathodique dans l'eau de mer et les boues
salines (ISO 9351:2025)
Ta slovenski standard je istoveten z: EN ISO 9351:2025
ICS:
77.060 Korozija kovin Corrosion of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 9351
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2025
EUROPÄISCHE NORM
ICS 77.060 Supersedes EN 12496:2013
English Version
Galvanic anodes for cathodic protection in seawater and
saline sediments (ISO 9351:2025)
Anodes galvaniques pour la protection cathodique Galvanische Anoden für den kathodischen Schutz in
dans l'eau de mer et les sédiments salins (ISO Meerwasser und salzhaltigen Sedimenten (ISO
9351:2025) 9351:2025)
This European Standard was approved by CEN on 14 February 2025.
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
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9351:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 9351:2025) has been prepared by Technical Committee ISO/TC 156 "Corrosion
of metals and alloys" in collaboration with Technical Committee CEN/TC 219 “Cathodic protection” the
secretariat of which is held by BSI.
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 August 2025, and conflicting national standards shall
be withdrawn at the latest by August 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 12496:2013.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 9351:2025 has been approved by CEN as EN ISO 9351:2025 without any modification.
International
Standard
ISO 9351
First edition
Galvanic anodes for cathodic
2025-02
protection in seawater and saline
sediments
Anodes galvaniques pour la protection cathodique dans l’eau de
mer et les sédiments salins
Reference number
ISO 9351:2025(en) © ISO 2025
ISO 9351:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii
ISO 9351:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviations . 4
4.1 Symbols .4
4.2 Abbreviations .5
5 Competence of personnel . 5
6 Galvanic anode materials and their properties . 5
6.1 General .5
6.2 Anode alloy composition .5
6.3 Electrochemical properties . .6
6.4 Electrochemical testing .6
6.4.1 General .6
6.4.2 Performance testing .6
6.4.3 Short-term testing for quality control.7
6.5 Anode consumption rate .7
7 Anode design and acceptance criteria . . 8
7.1 General .8
7.2 Chemical composition .9
7.3 Electrochemical properties . .9
7.4 Anode shape .9
7.5 Physical properties .9
7.6 Anode core materials .10
7.7 Cable connections to anodes .11
8 Environmental impact .11
Annex A (informative) Seawater .13
Annex B (normative) Physical tolerances for galvanic anodes . 14
Annex C (informative) Composition and performance properties for galvanic anodes . 19
Annex D (informative) Description of various electrochemical tests .26
Annex E (informative) Environmental impact considerations .29
Annex F (informative) Inspection and test plan (ITP) .33
Bibliography .40
iii
ISO 9351:2025(en)
Foreword
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constitute an endorsem
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