Sunday, October 16, 2011
Is it good to rely on setpoint for corrosion control based on Industry Standard or our own operational experience? What should be the best possible way to establish a meaningful setpoint relationship for corrosion control?
There are instances of defining setpoints like 2 mpy for the coupons installed at the return line of cooling water for characterizing the whole treatment and less than 1 mpy for terming the observed general corrosion rate as "Low" for process circuits based on Industry Practice/International Standard. These setpoints do not always reflect current design criteria including the changes made in original design for future operation. What should be the appropriate relational grading technique from the standpoint of: 1.Asset Owner, 2.Corrosion Control Service Providers (CSP), 3.Process Designer, 4.Corrosion Management Consultants/Auditors and 5.Corrosion Researchers to accommodate "uncertainties" arise during the regular operation?