​As one of the most basic methods of corrosion monitoring, corrosion coupon monitoring has the characteristics of simple operation and high data reliability, and can be used as an important basis for equipment and pipeline material selection. At present, there are two main methods of corrosion coupon technology used in Shengli Refinery.

Corrosion Coupon Assembly is used to monitor the corrosion rates of sample (coupon) in the pipe or container. By observing the mils-per-year corrosion rate of an exposed coupon, valuable information can be provided regarding the material’s life expectancy.