64.11—Design of MPTs.

An MPT must be designed—
(a) In accordance with the ASME Code and this subpart;
(b) With a maximum gross weight of 55,000 pounds;
(c) To hold a liquid cargo that has a vapor pressure of 43 pounds per square inch absolute (psia) or less at a temperature of 122 °F;
(d) With a minimum service temperature of 0 °F or higher;
(e) With a maximum allowable working pressure of not less than 20 pounds per square inch gauge (psig) but not more than 48 psig; and
(f) To withstand dynamic loading conditions applied simultaneously.
[CGD 84-043, 55 FR 37410, Sept. 11, 1990; 55 FR 40755, Oct. 4, 1990]