154.427—Membrane tank system design.
A 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.