Section 154.427 - Membrane tank system designA membrane tank system must be designed for:
(a) Any static and dynamic loads with respect to plastic deformation and fatigue;(b) Combined strains from static, dynamic, and thermal loads;(c) Preventing collapse of the membrane from:(1) Over-pressure in the interbarrier space;(2) Vacuum in the cargo tank;(3) Sloshing in a partially filled cargo tank; and(d) The deflections of the vessel's hull.