Indiana Administrative Code
Title 355 - STATE CHEMIST OF THE STATE OF INDIANA
Article 3 - AGRICULTURAL AMMONIA
Rule 5 - Systems for Transportation of Ammonia
Section 5-5 - Pressure relief valves

Authority: IC 15-16-1-6; IC 15-16-1-7

Affected: IC 15-16-1-10

Sec. 5.

The discharge from container relief valves shall be vented away from the container upward and unobstructed to the open air in such a manner as to prevent any impingement of escaping gas upon the container. Loose fitting rain caps shall be used to prevent moisture or foreign material from entering the relief valve outlet. The size of discharge lines from pressure relief valves shall not be smaller than the nominal size of the pressure relief valve outlet connection. Suitable provision shall be made for draining condensate that may accumulate in the discharge pipe.