Code of Federal Regulations Title 46. Shipping § 46.64.83 Hydrostatic test

(1) Closing each manhole and other openings by normal means of closure;

(2) Using wrenches or other tools that are used during normal operations to close the manhole and other openings;

(3) Using the same type of gaskets as used in service;

(4) If required for the inspection, removing tank insulation;

(5) Filling the tank with water and pressurizing to the test pressure indicated on the metal identification plate without leaking;  and

(6) If fitted with an internal heating coil, the heating coil passing a hydrostatic test at a pressure of 200 psig or more or 50 percent or more above the rated pressure of the coil, whichever is greater.