(1)Interpretation. - In this rule.(a)'design pressure' means the maximum pressure that a pressure vessel or plant is designed to withstand safely when operating normally.(b)'maximum permissible working pressure' is the maximum pressure at which a pressure vessel or plant is permitted to be operated or used under this rule and is determined by the technical requirements of the process;(c)[ Omitted] [Clause (c) omitted by SRO No. 1149/2001 dt. 28-12-2001.](d)'Pressure Vessel' means vessels that may be used for containing, storing, distributing, transferring, distilling, processing or otherwise handling any gas, vapor or liquid under pressure greater than the atmospheric pressure and includes any pipe line fitting or other equipment attached thereto for used on connection therewith ; [Amended by G.O. (Rt) No.1786/79 L&H dt. 17-12-1979] and(e)[ Omitted] [Clause (e) omitted by SRO No. 766/95, dt. 07-06-1995.]
