scope:

These standards cover the sanitary aspects of air operated or electrically operated automatic positive displacement samplers (reference revised 3-A drawings, numbers 3-A-100D-1, 3-A-100D-2, 3-A-100D-3, 3-A100D 1. 3-A-100D-5 and 3-A-100D-6) used on processing equipment and on equipment and lines which hold or convey fluid milk or fluid milk products. The sampler assembly may consist of a body, plunger, head, O-rings, seals, cylinder valves, diaphragm, springs and an air or electrically operated mechanism. It shall also include a closure plug or sample discharge port closure suitable for sealing the sample discharge opening when the sampler is not in use. These standards shall not cover automatic positive displacement samples used in aseptic or ultra pasteurization systems

In order to conform to these 3-A Standards, air operated or electrically operated positive displacement samplers shall comply with the following in design, material and fabrication.¹

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