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unfired pressure vessel "unfired pressure vessel" means any enclosed vessel under pressure greater than atmospheric pressure by any gas or mixture or combination of gases and includes any vessel under pressure of steam external to the steam boiler and any vessel which is under pressure of a liquid or gas or both, and any vessel subject internally to a pressure less than atmospheric pressure but does not include gas cylinders;
ACT 139 - FACTORIES AND MACHINERY ACT 1967 (REVISED 1974)
3. Interpretation - general. |