2.—(1) Subject to sub-paragraph (2), regulations 5(4), 8 to 10 and 14 shall not apply to a pressure system containing a relevant fluid (other than steam) if the product of the pressure in bar and internal volume in litres of its pressure vessels is in each case less than 250 bar litres.
(2) Until 21st August 2000 regulations 8 to 10 and 14 shall not apply to a pressure system brought into operation before the coming into force of these Regulations if the product of the pressure in bar and internal volume of its pressure vessel with the largest internal volume is less than 250 bar litres.