AS/NZS 3666 Part 1 - Legionella Control Australia

Air-Handling and Water Systems of Buildings - Microbial Control - Design, Installation and Commissioning

AS/NZS 3666 Part 1 - The Australian Standard/New Zealand Standard AS/NZS 3666 Part 1 is concerned with microbial control issues associated with air handling and water systems in commercial buildings.

AS/NZS 3666 Part 1 identifies the minimum requirements for the design, installation and commissioning of such building systems.

Although originally developed for commercial building services systems AS/NZS 3666 Part 1 can also be applied to other commercial or industrial air handling and water systems, and to domestic systems incorporating cooling water equipment.

Common Sources of Legionnaires' Disease

This standard looks at common sources of Legionnaires’ disease in commercial building air handling and water systems.

Other sources, both known and potential, include cooling water systems for refrigeration equipment and air compressors, industrial heat exchangers when opened for cleaning, decorative fountains, spray irrigation systems, and industrial water-based cutting fluid systems.

Whilst AS/NZS 3666 Part 1 identifies minimum design, installation and commissioning requirements associated with the control of microbial growth in air handling and water systems of commercial buildings; operational and maintenance issues are dealt with in AS/NZS 3666 Part 2.

For additional information concerning the control of microbial growth in air handling and water systems of commercial buildings, HB 32 should be consulted.

Expert Legionella Assistance

For further information and expert assistance regarding legionella risk management and compliance issues please call +44 (0) 161 877 0586 to speak to one of our specialist advisors or email your questions to This email address is being protected from spambots. You need JavaScript enabled to view it..

Get in touch...

Legionella Control International
Unit B Badex Building
Westbrook Park
Manchester M17 1AY
United Kingdom

Manchester: +44 (0) 161 877 05 86
London: +44 (0) 203 637 47 48
Email: info@legionellacontrol.com

Eliminate uncertainty, mitigate your risk now…

Contact Us Today

Legionella Control International is trusted by clients worldwide...