ISO 9351:2025
ISO 9351:2025 Galvanic anodes for cathodic protection in seawater and saline sediments
standard byInternational Organization for Standardization , 02/01/2025
standard byInternational Organization for Standardization , 02/01/2025
This document defines requirements and gives recommendations for the chemical composition, electrochemical properties, physical tolerances and test and inspection procedures for cast galvanic anodes of aluminium, magnesium and zinc-based alloys for cathodic protection in seawater, saline sediment and brackish water.
u000bInformation on salinity ranges can be found in AnnexA.
u000bThe requirements and recommendations of this document can be applied to any available anode shape for cast anodes, e.g. trapezoid, circular, half-spherical cross sections, bracelet type.
u000bWhilst other metals, such as soft iron, can be used as galvanic anode material to protect more noble metals than iron and steel, these are not covered in this document.