The startup phases of the Hanford N-Reactor, with its predominately carbon steel coolant systems, present numerous precleaning, corrosion, and water quality problems. Tests designed to provide information on cleaning a newly con¬structed carbon steel system, water quality during operation following the cleaning, and corrosion penetrations during both periods, were conducted in the K-1 in-reactor, carbon steel test loop. The effects of layup on subsequent water quality were also investigated.
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