To begin the test, the test part is filled to a specified pressure and measured with pressure sensor P1. The chamber is allowed to equilibrate to atmospheric pressure and the pressure is monitored with pressure sensor P2.
Next, the test is started and P2 is monitored for any rising pressure over a specified time. A small amount of air is introduced into the chamber to verify chamber integrity.
Upon completion of the test, both the test part and the chamber are vented. Finally, the test part is replaced and another test is started.