Most pressure systems require through examination in accordance with a written scheme drawn up by a competent person (usually an insurance engineer). The written scheme will specify examination intervals and what the examination must include.
This requirement applies to pressure systems containing a 'relevant fluid' and has a pressure vessel that contains steam or has a pressure x volume product of 250 bar-litre or more.
Relevant fluids include steam at any pressure any fluid or mixture of fluids (gas/liquid) which is at a pressure greater than 0.5 bar above atmospheric pressure. This includes compressed air (a mixture of gases) as well as other compressed gases such as nitrogen, acetylene and oxygen. The definition will also include hot water contained above its boiling point at atmospheric pressure (pressurised hot water) or aqueous solutions where a vapour pressure above 0.5 bar (gauge) is generated.
It would include fixed plant and mobile pressure vessels such as air compressors, commercial coffee boilers, pressure cookers and autoclaves where they meet the above requirements.
The thorough examination of fixed pressure vessels is the responsibility of the Estate Management Section. If you have fixed equipment that may come under the definition of a pressure vessel, you can contact the Estate Management Section for advice on thorough examination requirements.
Departments are responsible for their own specialist work equipment and mobile systems that they use. If you have equipment that may come under the definition of pressure systems, you can contact HSAS for advice on thorough examination requirements.
The University can arrange for thorough examination to be carried out via their insurers. Contact firstname.lastname@example.org to include your work equipment on the thorough examination schedule.