Water Conditioning & Purification Magazine

North America: New NSF protocol published

NSF International has published a new protocol as part of its commitment to improve building water health: NSF P453: Cooling Towers – Treatment, Operation, and Maintenance to Prevent Legionellosis. This protocol outlines proper maintenance and safety practices associated with evaporative cooling systems. It also addresses health concerns associated with commercial buildings, including healthcare facilities, whose residents may experience health issues, such as Legionellosis from improperly maintained water systems. The new protocol uses the water safety plan approach recommended by the World Health Organization (WHO) to assemble a team, identify potential hazards and establish control measures to prevent the growth of Legionella bacteria. The protocol can be used by facilities to establish a management plan for the treatment, operation and maintenance of cooling-tower water systems.

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