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3-A Sanitary Standards for Dairy Equipment¹

The Diversey Corporation, 1820 Roscoe St., Chicago, Illinois

ABSTRACT

In the course of the past 11 yr., the 3-A Sanitary Standards Committees have adopted 18 3-A Sanitary Standards (16 of which have been published), and three 3-A Recommended Methods or Accepted Practices (two of which have been published). These sanitary standards are published in the Journal of Milk and Food Technology, and reprints are available.

The published 3-A Sanitary Standards which pertain to milk-processing or handling equipment normally found only in dairy plants include those applying to storage tanks, weigh-cans and receiving tanks, homogenizers and high-pressure pumps, filters, plate-type and tubular heat exchangers, batch pasteurizer leak-protector valves, and evaporators and vacuum pans. The two published directions—3-A Standard Method for Determining the Holding Time of High-Temperature Short-Time Pasteurizers by the Salt Conductivity Test, and 3-A Suggested Method for Installation and Cleaning of Cleaning-in-place Sanitary Pipe Lines—also apply to dairy plant equipment.

The two published 3-A Sanitary Standards which apply solely to dairy farm equipment are for can-type strainers and for bulk-milk cooling tanks. The one unpublished sanitary standard affecting milk production applies to portable bucket-type milking machines.

¹ Report of the Public Health Committee of the American Dairy Science Association for 1958.