AS 2239-2003 (2016) PDF

Full title and description

AS 2239-2003 — Galvanic (sacrificial) anodes for cathodic protection. Third edition (2003). Specifies requirements for galvanic (sacrificial) anodes (magnesium, zinc and aluminium) used to protect metallic structures from corrosion, including alloy composition, shape/design details and backfill for buried anodes. Reconfirmed in July 2016 (R2016).

Abstract

This Standard sets out the materials, dimensional, performance and testing requirements for galvanic (sacrificial) anodes used in cathodic protection systems. It covers alloy compositions for magnesium, zinc and aluminium anodes, guidance on typical anode shapes and masses, core and cable attachment details, performance tests (mechanical, electrical resistance, consumption rate and potential), and backfill composition and application for buried anodes. Advisory appendices provide purchaser information, selection guidance and test procedures.

General information

• Status: Current (Reconfirmed 2016)
• Publication date: 24 November 2003
• Publisher: Standards Australia
• ICS / categories: 77.060 — Corrosion of metals (cathodic protection)
• Edition / version: Third edition (AS 2239-2003); Reconfirmation notice R2016
• Number of pages: 32

Scope

Specifies requirements for galvanic (sacrificial) anodes intended for use in the cathodic protection of metallic structures in buried and immersed environments. The Standard defines acceptable alloy compositions for magnesium, zinc and aluminium anodes, minimum/nominal dimensions and masses for commonly used shapes, core and cable details, marking and purchaser information, and requirements for backfill materials for buried anodes. Test methods and performance criteria for consumption and electrical behaviour are included in normative clauses and appendices.

Key topics and requirements

• Alloy composition limits for magnesium, zinc and aluminium sacrificial anodes.
• Design, typical shapes and dimensional/mass guidance for anode types (rod, block, ribbon, etc.).
• Core materials, placement and bonding; cable attachment methods and marking requirements.
• Performance tests: mechanical integrity, electrical resistance, consumption rate (aluminium in seawater) and closed-circuit potential measurements.
• Backfill composition, properties and application guidance for buried magnesium and zinc anodes (including packaged anodes).
• Appendices with purchaser information, selection guidance for different environments and full test procedures.

Typical use and users

Used by corrosion engineers, cathodic-protection designers and specifiers, pipeline and asset owners, manufacturers and suppliers of sacrificial anodes, inspection and maintenance contractors, and procurement teams preparing technical specifications for corrosion protection systems on buried or immersed metallic structures.

Related standards

Commonly referenced or used alongside: the AS 2832 series (Cathodic protection of metals — various parts), AS/NZS 1768 (lightning protection, where stray currents are relevant), AS 2706 (numerical values/rounding), AS/NZS standards for piping and water heater installations, and other national/international cathodic protection guidance documents and test standards.

Keywords

galvanic anode; sacrificial anode; cathodic protection; magnesium anode; zinc anode; aluminium anode; backfill; consumption rate; closed-circuit potential; Standards Australia; AS 2239-2003; R2016.

FAQ

Q: What is this standard?

A: AS 2239-2003 is the Australian Standard that specifies requirements for galvanic (sacrificial) anodes used in cathodic protection systems. It defines alloy, design, marking and test/performance requirements and includes guidance appendices.

Q: What does it cover?

A: It covers alloy compositions for magnesium, zinc and aluminium anodes; typical shapes, masses and core/cable details; performance and test requirements (mechanical, electrical, consumption and potential); and backfill composition and application for buried anodes, plus purchaser and selection guidance in appendices.

Q: Who typically uses it?

A: Corrosion and cathodic protection engineers, asset owners, pipeline and marine engineers, anode manufacturers and suppliers, procurement teams specifying protection systems, and maintenance/inspection contractors.

Q: Is it current or superseded?

A: The edition is AS 2239-2003 (third edition). It was formally reconfirmed in July 2016 (R2016) and remains the current Australian Standard unless a later revision is published by Standards Australia.

Q: Is it part of a series?

A: It sits within the body of Australian cathodic protection standards and is commonly used with the AS 2832 series (various parts covering cathodic protection of pipes, immersed and buried structures) and other related AS/AS-NZS documents addressing installation, testing and electrical safety.

Q: What are the key keywords?

A: galvanic anode; sacrificial anode; cathodic protection; magnesium; zinc; aluminium; backfill; consumption rate; closed-circuit potential; AS 2239.