Thickness Gauging is used to measure internal corrosion, externally. This allows corrosion checks on equipment such as pressure cylinders, tanks and pipe work, and many more. This technique is suitable for checking equipment without having to open or enter the area that requires checking. Again, this can be done without removing the external coating which is very convenient.

Visual Inspection of exterior and interior of the CCU, Load test of the CCU, NDT of the structural points, Color coding and proper identification tagging.