scope:

This 3-A Sanitary Standard applies to the sanitary aspects of level sensing devices for dry products. The sensor begins at the instrument connection(s) and fitting(s) if required, process contact component(s) and all external component(s) necessary for operation.

This 3-A Sanitary Standard does not apply to 3-A Sanitary Standard for Flow Meters, 28-; or 3-A Sanitary Standard for Sensors and Sensor Fittings and Connections, 74-.

This 3-A Sanitary Standard does not apply to load cells.

To conform to this 3-A Sanitary Standard, dry product level sensing devices shall conform to the following criteria for design, materials of construction, fabrication techniques and installation, as appropriate, and the current revisions or editions of all referenced documents cited herein and in the case of field-installed adaptors or spuds and their associated sensors, installation criteria.