Intrusive Corrosion Monitoring is one of the most reliable methods for accurately assessing the true corrosivity of a process environment. This approach involves installing a sensing element – such as a metal coupon or an electrical probe – directly into the flowing process stream. By exposing the sensor to real operating conditions, operators can measure corrosion exactly as it occurs on the pipe wall, under actual pressures, temperatures, and flow regimes. This provides precise, real-time insight into corrosion behavior during live operations.