- (1) A licensee shall calibrate the survey instruments used to show compliance with this Chapter and Chapter 0400-20-05 before first use, annually, and following a repair that affects the calibration.
(2) To satisfy the requirements of paragraph (1) of Rule 0400-20-07-.29, the licensee shall:
- (a) Calibrate all required scale readings up to 10 millisieverts (1000 millirem) per hour with a radiation source;
- (b) Calibrate 2 separated readings on each scale or decade that will be used to show compliance; and
- (c) Conspicuously note on the instrument the date of calibration.
- (3) A licensee shall not use survey instruments if the difference between the indicated exposure rate and the calculated exposure rate is greater than 20 percent.
- (4) A licensee shall retain a record of each survey instrument calibration in accordance with Rule 0400-20-07-.88.
- (5) Calibration of all survey instruments shall be in accordance with an approved procedure or performed by persons specifically licensed to provide calibration services.
Authority: T.C.A. §§ 4-5-201, et seq.; 68-202-101, et seq.; and 68-202-201, et seq. Administrative History: Original rule filed February 22, 2012; effective May 22, 2012.