scope:

These standards cover the sanitary aspects of double-seat mixproof valves used on processing equipment and on equipment and lines which hold or convey milk, milk products, and other comestibles.

These valves cannot be used to separate raw milk and milk products from pasteurized milk, milk products, and other comestibles.

In order to conform to these 3-A Sanitary Standards, double-seat mixproof valves shall conform to the following in design, material and fabrication criteria and the applicable documents referenced herein.¹

¹ Use current revisions or editions of all referenced documents cited herein.