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Testing for E. coli and Coliforms in Drinking Water According to ISO 9308-1


Industries where consumer safety is a major concern are regulated by stringent standards to ensure the quality of products. Microbial testing standards in the water and beverage industry see quite some changes making it challenging to stay up-to-date. We help you to stay compliant!

Coliforms and E.coli are tested as indicators to measure the quality of drinking water. This testing procedure is regulated by the international standard ISO 9308-1, released in 2014, which has been amended in 2018. We will explain the amendment for enumeration of E.coli and coliforms in water with low bioburden, and walk you through the testing workflow.


Andreas Bubert, PhD

Andreas Bubert, PhD


Senior Product Manager, Culture Media Food & Beverage

Andreas received a PhD in molecular microbiology for his research and diagnostics work on Listeria. He has over 24 years’ experience at MilliporeSigma, focusing on microbiological solutions for the food and beverage industries. He is a member of AOAC RI Advisory Council and has authored over 50 publications.

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