scope:

These standards cover the sanitary aspects of agitators, mixers and shear mixers used for combining and/or mixing, either liquids or liquids with solid products. Specifically included are batch mixers immersed into the product. Shear mixers, mixers, and agitators may be of the top, side or bottom entry types. These standards do not include the vessel in which the agitator, mixer or shear mixer is used.

In order to conform to these 3-A Sanitary Standards, shear mixers, mixers, and agitators shall conform to the following design, material, and fabrication criteria.