Section 23(4) in The Static and Mobile Pressure Vessels (Unfired) Rules, 2016
(4)Loading. - The greatest combined effect of static and imposed loading shall be used for design as under:-(a)Static loading : weight of vessel and its contents;(b)test loading if tested by water;(c)wind loading;(d)operational loading such as vibration or thermal (natural and operational);(e)Seismic loading for foundation.
