Official Methods of Analysis of AOAC International is a source of analytical methods for both agricultural and food products used worldwide. The online version is a continuous edition (based on the 18th edition) with new and revised methods posted as soon as approved and ready. Online.
AACC (formerly American Association of Cereal Chemists), first published Methods for the Analysis of Cereals and Cereal Products in 1922. It is now a major online source in the field of grain science and technology.