Process test plan for the 241-AN-105 multi-function corrosion monitoring system

Process Test Plan (PTP) for 241-AN-105 corrosion monitoring system. A corrosion monitoring probe will be installed into 241-AN-105 in late FY 1999. There are five principle objectives of this task: (1) Acquire data on the corrosive characteristics of the existing waste in 241-AN-105. (2) Provide supporting data to the Integrity Assessment program. (3) Acquire data to support a proposed eventual change in the operation of double shell tanks to monitor and control tank corrosion through the use of corrosion probes rather than waste sampling and analysis. (4) Demonstrate that corrosion monitoring by evaluation of electrochemical noise data is possible in waste tank systems, particularly with regard to the detection of general corrosion and (if present) pitting and stress corrosion cracking. (5) Demonstrate the durability of the design of the corrosion monitoring equipment. The long term advantage of corrosion monitoring in double shell tanks is expected to be extended tank life and reduced annual operations cost