NAC445A.6679. Treatment facilities: Designation of piping and valves; schematic diagram for control of processes.

Latest version.

     1. In a treatment facility:

     (a) The piping must designate, by color coding and other means, the liquid contained in the piping and the direction of flow of the liquid.

     (b) The valves must be designated by tags.

     2. A treatment facility must have available a schematic diagram for the control of the processes of the facility which identifies and describes the designations required by subsection 1.

(Added to NAC by Bd. of Health, eff. 2-20-97)

                    
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