Chemical and microbiological analytical methods validated by the AOAC Official Methods Program. These methods are used by government, industry, and academia throughout the world for analysis of a variety of commodities - particularly those related to food, agriculture, public health and safety, and the environment. The AOAC requires that University of Minnesota users enter a Username/Password combination when accessing content on their site. The University of Minnesota's license allows three simultaneous users. Click on the link below and sign in with your University of Minnesota Internet ID to access the AOAC Username/Password.