It is a normal requirement that certain types of vessel, particularly gas cylinders, can be subjected to a routine pressure test at prescribed intervals. The initial and regular test pressures can be recorded in the register of the vessel or equipment. Tests, after repair or modification, can be carried out at this recorded routine test pressure. If not, the registration details of the vessel can be altered to signify de-rating of the vessel to a lower operating pressure and a consequently lower test pressure.

Designated Inspector

A designated person is responsible for defining testing methods, authorizing dispensations to omit pressure testing, validating pressure testing procedures and sanctioning any pneumatic pressure tests.