# The Pressure Systems and Transportable Gas Containers Regulations 1989, Paragraph 1


Regulations 5(4), 8 to 11 and 13 shall not apply to a pressure system containing a relevant fluid (other than steam) if the product of the pressure (in bars above atmospheric) in the pressure vessel (or in the case of a system having more than one vessel, the vessel with the largest internal volume) and internal volume (in litres) is less than 250.

---
Source: https://www.legislation.gov.uk/uksi/1989/2169/schedule/2/part/II/paragraph/1 (the official version)
Page: https://openlegislation.uk/pressure-systems-and-transportable-gas-containers-regulations-1989/schedule-2/part-II/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.