This 3-A Accepted Practice applies to the sanitary aspects of equipment necessary for membrane
processing of products. The unit operations of the Membrane Processing Systems include the
following: ultrafiltration, diafiltration, microfiltration, nanofiltration and reverse osmosis. Product
enters the inlet to the supply tank which delivers the product to the membrane equipment and, when
diafiltration is used, at the outlet of the nearest valve which delivers water for diafiltration. The
product exits at the connections on the membrane equipment where concentrate and permeate leave
the membrane equipment for storage or further processing.
This 3-A Accepted Practice does not cover materials and fabrication of membrane modules.
Membrane modules are covered under 3-A Sanitary Standard, 45-.
To conform to this 3-A Accepted Practice, membrane processing systems shall conform to the
following criteria for design, materials of construction, fabrication techniques and installation, as
applicable, and the current revisions or editions of all referenced documents cited herein.
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| Number of Pages : | 16 |
| Published : | 03/29/2018 |
