ONCE THROUGH DECONTAMINATION STUDIES--INTERIM REPORT NO. 1
Three once-through decontamination tests were performed on contaminated D reactor pigtails using proprietary sodium bisulfate and sulfamic acid-ammonium fluoride cleaning agents. Two other runs were made on contaminated carbon and stainless steel washer-type coupons to determine once-through cleaning efficiencies on high-temperature contaminated films. It was found that a proprietary sulfamic acid-ammonium fluoride compound, Turco 4306-B, effectively reduced pigtail activity to background readings. A corrosion loss of 0.956 mils on Zircaloy-2 coupons was obtained following the Turco 4506-B flush. Good decontamination of a D reactor pigtail was obtained in 24 minutes using a proprietary sodium bisulfate at 10% and 8 gpm, but reduced concentrations and lower flow rates did not give appreciable activity reductions. An oxalic acid compound greatly reduced activity on KER contaminated carbon steel specimens but had little effect on the activity of KER contaminated stainless steel samples. Wyandotte-1112, a proprietary sodium bisulfate, reduced the activity of both. (M.C.G.)
- Research Organization:
- General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
- DOE Contract Number:
- AT(45-1)-1350
- NSA Number:
- NSA-14-017636
- OSTI ID:
- 4179345
- Report Number(s):
- HW-63414
- Country of Publication:
- United States
- Language:
- English
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