Water Activity

Pharmig Action Groups

Pharmig Action Groups work on a voluntary basis to produce information that will be of benefit to you, the microbiologist.

The Groups are constantly evolving and continually accept new members as and when required (for example if a new project is starting up). If you would like to know more information about the current Action Groups ,or would like to put forward a new Action Group for the Committee to consider please contact the Pharmig office on +44 (0) 1920 871 999 or email This e-mail address is being protected from spambots. You need JavaScript enabled to view it in the first instance.

Water Activity Action Group The Water Activity Group (led by Wendy Pimblett of AstraZeneca and Sheila Judd of GSK) have agreed to produce a series of Technical Guidance Documents on Water Activity which will provide information on all aspects of the use and potential uses of Aw. The documents will benefit existing users who want to justify the use of Aw instead of conventional methods for certain products, and labs that are thinking of purchasing an Aw meter and implementing the test into the lab.

Currently two Technical Guidance Documents have been produced and appear in the following Newsletters Pharmig Water Activity Fact Sheet 1 - What is Water Activity? - March 2000, Issue 30 Pharmig Water Activity Fact Sheet 2 - This fact sheet provides advice for users of Water Activity Meters on how to perform method development and validation and also what constitutes an OOS and how to deal with one - March 2009, Issue 34 If you would like to join the Water Activity Action Group, please contact This e-mail address is being protected from spambots. You need JavaScript enabled to view it at Pharmig in the first instance