EN 12473:2014

General principles of cathodic protection in seawater

This European Standard covers the general principles of cathodic protection when applied in seawater, brackish waters and marine mud. It is intended to be an introduction, to provide a link between the theoretical aspects and the practical applications, and to constitute a support to the other European Standards devoted to cathodic protection of steel structures in seawater.
This European Standard specifies the criteria required for cathodic protection. It provides recommendations and information on reference electrodes, design considerations and prevention of the secondary effects of cathodic protection.
The practical applications of cathodic protection in seawater are covered by the following standards:
-   EN 12495, Cathodic protection for fixed steel offshore structures;
-   EN ISO 13174, Cathodic protection of harbour installations (ISO 13174);
-   EN 12496, Galvanic anodes for cathodic protection in seawater and saline mud;
-   EN 13173, Cathodic protection for steel offshore floating structures;
-   EN 16222, Cathodic protection of ship hulls;
-   EN 12474, Cathodic protection of submarine pipelines;
-   ISO 15589 2, Petroleum, petrochemical and natural gas industries - Cathodic protection of pipeline transportation systems - Part 2: Offshore pipelines.
For cathodic protection of steel reinforced concrete whether exposed to seawater or to the atmosphere, EN ISO 12696 applies.

Allgemeine Grundsätze des kathodischen Korrosionsschutzes in Meerwasser

Diese Europäische Norm legt allgemeine Grundsätze des kathodischen Korrosionsschutzes fest, wenn dieser in Meerwasser, Brackwasser und Meeresschlick angewendet wird. Sie dient als Einleitung, als Verbindung zwischen den theoretischen Aspekten und den praktischen Anwendungen sowie als Unterstützung zu anderen Europäischen Normen, die kathodischen Korrosionsschutz von Anlagen aus Stahl in Meerwasser behandeln.
Diese Europäische Norm legt die Kriterien, die für den kathodischen Korrosionsschutz erforderlich sind, fest. Sie gibt Empfehlungen und Informationen zu Referenzelektroden, Design-Überlegungen und Prävention der Nebenwirkungen des kathodischen Korrosionsschutzes.
Die praktischen Anwendungen des kathodischen Korrosionsschutzes in Meerwasser werden von den folgenden Normen abgedeckt:
EN 12495, Kathodischer Korrosionsschutz von ortsfesten Offshore-Anlagen aus Stahl
EN ISO 13174, Kathodischer Korrosionsschutz für Hafenbauten (ISO 13174)
EN 12496, Galvanische Anoden für den kathodischen Schutz in Seewasser und salzhaltigem Schlamm
EN 13173, Kathodischer Korrosionsschutz für schwimmende Offshore-Anlagen aus Stahl
EN 16222, Kathodischer Korrosionsschutz von Schiffen
EN 12474, Kathodischer Korrosionsschutz für unterseeische Rohrleitungen
ISO 15589-2, Petroleum, petrochemical and natural gas industries - Cathodic protection of pipeline transpor-tation systems - Part 2: Offshore pipelines
Für den kathodischen Korrosionsschutz von Meerwasser oder der Luft ausgesetztem Stahl in Beton gilt EN ISO 12696.

Principes généraux de la protection cathodique en eau de mer

La présente Norme européenne traite des principes généraux de la protection cathodique appliquée en eau de mer, en eaux saumâtres et dans les boues marines. Son rôle est de servir d'introduction et de lien entre les aspects théoriques et les applications pratiques et de constituer une base d'appui aux autres Normes européennes dédiées à la protection cathodique des ouvrages en acier en eau de mer.
La présente Norme européenne spécifie les critères requis pour la protection cathodique. Elle fournit des recommandations et des informations sur les électrodes de référence, les considérations pour la conception et sur la prévention des effets secondaires de la protection cathodique.
Les applications pratiques de la protection cathodique dans l'eau de mer sont couvertes par les normes suivantes :
-   EN 12495, Protection cathodique des structures en acier fixes en mer ;
-   EN ISO 13174, Protection cathodique des installations portuaires (ISO 13174) ;
-   EN 12496, Anodes galvaniques pour la protection cathodique dans l'eau de mer et les boues salines ;
-   EN 13173, Protection cathodique des structures en acier flottant en mer ;
-   EN 16222, Protection cathodique des coques de bateaux ;
-   EN 12474, Protection cathodique des canalisations sous-marines ;
-   ISO 15589-2, Industries du pétrole et du gaz naturel — Protection cathodique des systèmes de transport par conduites — Partie 2 : conduites en mer.
Pour la protection cathodique du béton armé, exposé à l'eau de mer ou à l'atmosphère, l'EN ISO 12696 s'applique.

Splošna načela za katodno zaščito v morski vodi

EN 12473 zajema splošna načela za katodno zaščito, ko se uporablja v morski vodi, polslanih vodah in slanem blatu. Namenjen je kot uvod, za določitev povezave med teoretskimi vidiki in praktičnimi vrstami uporabe ter za podporo drugim evropskim standardom, ki obravnavajo katodno zaščito jeklenih konstrukcij v morski vodi. Ta evropski standard določa merila, potrebna za katodno zaščito. Podaja priporočila in informacije o referenčnih elektrodah, projektiranju in preprečevanju sekundarnih učinkov katodne zaščite. Praktično uporabo katodne zaščite v morski vodi zajemajo ti standardi: – EN 12495, Katodna zaščita jeklenih konstrukcij, postavljenih v morju ali ob morju; – EN ISO 13174, Katodna zaščita za pristaniške napeljave (ISO 13174); – EN 12496, Galvanske anode za katodno zaščito v slani vodi in slanem blatu; – EN 13173, Katodna zaščita za plavajoče jeklene priobalne konstrukcije; – EN 16222, Katodna zaščita ladij; – EN 12474, Katodna zaščita podmorskih cevovodov; – ISO 15589-2, Petrokemična industrija ter industrija za predelavo nafte in zemeljskega plina – Katodna zaščita cevovodov – 2. del: Cevovodi na morju. Za katodno zaščito armiranega betona, ki je izpostavljen morski vodi ali atmosferi, velja standard EN ISO 12696.

General Information

• Status: Published
• Publication Date: 11-Feb-2014
• Withdrawal Date: 30-Aug-2014
• ICS: 23.040.99 - Other pipeline components
• ICS: 47.020.01 - General standards related to shipbuilding and marine structures
• ICS: 77.060 - Corrosion of metals
• Technical Committee: CEN/TC 219 - Cathodic protection (provisional)
• Drafting Committee: CEN/TC 219/WG 3 - Cathodic protection of steel structures in sea-water
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 01-Mar-2020
• Ref Project: SIST EN 12473:2014 - General principles of cathodic protection in seawater

Relations

• Replaces: EN 12473:2000 - General principles of cathodic protection in sea water
• Effective Date: 22-Dec-2008

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Allgemeine Grundsätze des kathodischen Korrosionsschutzes in MeerwasserPrincipes généraux de la protection cathodique en eau de merGeneral principles of cathodic protection in seawater47.020.01Splošni standardi v zvezi z ladjedelništvom in konstrukcijami na morjuGeneral standards related to shipbuilding and marine structures25.220.40Kovinske prevlekeMetallic coatingsICS:Ta slovenski standard je istoveten z:EN 12473:2014SIST EN 12473:2014en,fr,de01-julij-2014SIST EN 12473:2014SLOVENSKI
STANDARDSIST EN 12473:20001DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12473
February 2014 ICS 47.020.01; 77.060 Supersedes EN 12473:2000English Version
General principles of cathodic protection in seawater
Principes généraux de la protection cathodique en eau de mer
Allgemeine Grundsätze des kathodischen Korrosionsschutzes in Meerwasser This European Standard was approved by CEN on 16 November 2013.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12473:2014 ESIST EN 12473:2014

Corrosion of carbon-manganese and low-alloy steels . 26 A.1 Nature of metallic corrosion . 26 A.2 Polarization . 27 Annex B (informative)
Principles of cathodic protection . 30 Annex C (informative)
Reference electrodes . 33 C.1 General . 33 C.2 Silver/silver chloride/seawater electrode . 33 C.3 The zinc/seawater electrode . 35 C.4 Verification of reference electrodes . 35 Annex D (informative)
Corrosion of metallic materials other than carbon-manganese and low-alloy steels typically subject to cathodic protection in seawater . 37 D.1 Stainless steels . 37 D.2 Nickel alloys . 37 D.3 Aluminium alloys . 37 D.4 Copper alloys . 38 Bibliography . 39
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