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Cooling Tower Water Testing Services

Cooling tower is a heat removal device used to eliminate waste heat of air released to atmosphere. This process allows airborne contaminants, organic matters and particles to become deposited into the cooling water. This, combined with the contaminants in the feed water, creates an environment for microorganism growth, solid deposits and scaling.
Improper treated cooling tower water could be an amplifier of biological hazardous agent. The warm and moist environment of a cooling tower favors the growth of Legionella bacteria

which causes the outbreak of the deathly Legionnaires' disease. Thus, cooling tower water quality must be monitored in a regular basis to prevent spreading of diseases to users.


In Hong Kong, Code of Practice for Water-cooled Air Conditioning Systems, published by the Electrical and Mechanical Services Department (EMSD), HKSAR Government, recommends to monitor the following parameters regularly.

Ref: Code of Practice for Water-cooled Air Conditioning Systems Part 2: Operation and Maintenance of Cooling Towers (EMSD, HKSAR, Jan 2007)

To ensure the accuracy of the test results, testing should be carried out by the laboratories accredited by the Hong Kong Laboratory Accreditation Scheme (HOKLAS). Enviro Labs Ltd. (ELL) is registered as a HOKLAS accredited laboratory (HOKLAS 128) in Environmental Testing and our company holds HOKLAS accreditation for ALL the tests listed as above.

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