HomeWebinarsGuidance to ISO 11133 Compliance: Water Sourcing for Microbiology Culture Media Webinar

Guidance to ISO 11133 Compliance: Water Sourcing for Microbiology Culture Media Webinar


Culture media for the microbiological testing of food, feed, or water must be prepared with pure water that complies with specifications described by the ISO 11133:2014 standard. Adhering to these water quality criteria can improve test accuracy and reproducibility, and a modern means of delivery can support greater lab efficiency.

Join us to better understand:
- ISO 11133 background and requirements for water used for preparation and performance testing of culture media
- The impact of water contaminants on culture media
- The comparative suitability of two different water sources on the performance testing of culture media
- How your lab’s water source can impact lab productivity, accuracy, and traceability


Barbara Gerten

Barbara Gerten


Senior Scientist Traditional Microbiology

Barbara Gerten is a microbiologist with many years of industry experience who has been at Merck KGaA, Darmstadt, Germany, since 2008. She is a member of several ISO/CEN committees including ISO Working Groups e.g. “Culture Media” and Chair of IDF Standing Committee for Harmonization of Microbiological Methods and the German DIN NAL Working Group “Microbiology in the Food Chain”.

Estelle Riche, Ph.D.

Estelle Riche, Ph.D.

Lab Water Solutions

Global Application Specialist

Dr. Estelle Riche holds an engineering degree in chemistry from ESCOM (France) and a Ph.D. in chemistry from the University of North Carolina at Chapel Hill (USA). Prior to joining Millipore SAS twelve years ago, she was an assistant professor in the School of Dentistry at UNC for four years. She is currently a Global Application Specialist for Lab Water Solutions, based in Guyancourt, France. Her responsibilities include understanding the potential impact of water contaminants on the results of analytical experiments and providing support to scientists regarding the optimal use of purified water in their experiments.

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