(a) The calculated stress in the tank under design conditions, including dynamic loading conditions applied simultaneously, must not exceed the allowable stress listed in Division 1 of section VIII of the ASME Code, for a design temperature of 122 °F.
(b) The calculated stress in the tank at test pressure must not exceed 75 percent of the minimum yield stress,[1] or 37.5 percent of the minimum tensile stress1 of the material, whichever is less.
[CGD 73-172, 39 FR 22950, June 25, 1974, as amended by CGD 84-043, 55 FR 37410, Sept. 11, 1990]