scope:

General

Corrosion monitoring techniques can be divided into intrusive and nonintrusive methods. Intrusive methods are those that access the inside of a system. Nonintrusive systems do not require internal access. This distinction is particularly critical in subsea use because of the difficulty in using intrusive devices in underwater locations, especially at greater depths.

Nonintrusive monitoring systems include the field signature method, thin layer activation, and fixed ultrasonic testing (UT). These systems and others are the focus of this technical committee report.