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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
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D.
the name of the individual who performed the calibration.
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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.