Regular maintenance of air-conditioning cooling towers is essential for efficient operation and protection of public health. Poorly maintained towers can be a source of legionella bacteria, the causative agent of Legionnaires disease. SAS Laboratory offers timely National Association of Testing Authorities (NATA) accredited testing in accordance with the requirements of AS3666 Air-handling and water systems of buildings – Microbial control. We provide:

  • Bacteriological testing
    Heterotrophic (total) plate count, Legionella analysis including Legionella pneumophila and legionella sp.

Sampling and other tests are available. Please contact us to discuss.

We can supply you with the appropriate sample containers. These are free and can either be collected from our laboratory or posted to you for a nominal fee.

When taking the sample, it is very important to follow the instructions provided especially for the microbiological tests, so that no contamination occurs.  We recommend that samples are chilled after collection and delivered to our laboratory on the same day. You will also need to complete a Sample Submission Form to submit with your water samples.