INSTRUMENT CALIBRATION RECORDS

Subpart 1. Activity measurement instruments. A licensee must maintain a record of instrument calibrations required under part 4731.4420 for three years. The record must include: A. the model and serial numbers of the instrument; B. the date of the calibration; C. the results of the calibration; and D. the name of the individual who performed the calibration. Subp. 2. Survey instruments. A licensee must maintain a record of radiation survey instrument calibrations required under part 4731.4421 for three years. The record must include: A. the model and serial number of the instrument; B. the date of the calibration; C. the results of the calibration; and D. the name of the individual who performed the calibration.