A corrosion coupon is used to monitor the corrosion rate of a material in a process. Generally, a corrosion coupon is inserted into the process and is held in place by a holder so the corrosivity of the process can be monitored. The test coupon might be the same material as the pipe or the materials might match the materials of construction of vessel or tank internals.
Other uses for test coupons are measuring the scale deposition rate of water in an industrial water process or to provide a location for the growth of microorganisms for the purposes of quantification or identification.
- Abbreviated as CC