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Pseudalert honored with ISO Standard designation

The IDEXX Pseudalert method has been published as the International Organization for Standardization (ISO) worldwide standard 16266-2 for the 24-hour detection of Pseudomonas aeruginosa in water. The ISO designation includes hospital waters, drinking water and swimming/spa pool waters. 

This is a big deal! ISO is a global, widely recognized organization focused on ensuring that products and services are safe, reliable, and of good quality. Because of ISO’s renowned status, it’s not easy to become a standard – doing so requires a rigorous, multi-year evaluation process by a highly regarded international body of experts. 

Listed under ISO 16266-2:2018, Water Quality—Detection and Enumeration of Pseudomonas aeruginosa–Part 2: Most Probable Number Method, the Pseudalert method detects P. aeruginosa in 24 hours, less than half the time of other commercially available methods. It also has high sensitivity and specificity, requires no confirmation steps, and can be more easily used with water samples that have high levels of background flora. Turnaround time is especially critical in the healthcare and hospitality industries, where receiving test results sooner enables facility managers to act more quickly to clean their water systems and protect the safety of patients and visitors. Faster turnaround time for retesting after remediation also reduces the costs of clinical downtime and closed facilities.

The Pseudalert method’s acceptance as an ISO standard marks the second such ISO milestone for an IDEXX Water diagnostic. The IDEXX Colilert®-18 method was published as an ISO standard (ISO 9308-2) in 2012 and was included as one of the two reference methods for coliforms and E. coli in the revised European Union Drinking Water Directive in 2015.



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