Re-verification is needed to ensure that the calibration (the relationship between measured level and measured volume) that is obtained during commissioning has not changed over time. This can be achieved, in part, by metering in solution and correlating with marks identified a priori. Mark identification and correlation are discussed and possible error sources are outlined.
Ehinger, M., Chesnay, B., Creusot, C., Damico, J., Johnson, S., Wuester, J., Masuda, S. and Kajii, M.2004: Solution monitoring applications for the Rokkasho Reprocessing Plant. International Conference on Facilities Operations-Safeguards Interface, Charleston, SC.
2.
De Ridder, P., Binner, R., Richet, S. and Peter, N.2004: Tank calibration data evaluation. 45th INMM Conference, Orlando, FL.
3.
Higuchi, H., Takeda, S., Uchikoshi, S., Watanabe, Y., Kaieda, K., Sellinschegg, D. and Binner, R.2001: High quality calibration study. IAEA Symposium, Vienna.
4.
Nusaf Unit, IPSC, JRC.2005: PPMD, a portable pressure measurement device. Ispra, 2005.