410 IAC 5-5-7 Survey instruments for gamma and temporary job site radiography

Sec. 7. (a) The licensee or registrant shall maintain sufficient calibrated and operable radiation survey instruments to make physical radiation surveys as required by 410 IAC 5-5-7 and 410 IAC 5-4-9 of 410 IAC 5. Instrumentation required by this section shall have such a range such that 2 milliroentgens per hour through 1 roentgen per hour can be measured. (b) Each radiation survey instrument shall be calibrated: (1) at energies appropriate for use and at intervals not to exceed 3 months and after each instrument servicing; (2) such that accuracy within plus or minus 20 percent traceable to a national standard can be demonstrated; and (3) at two or more widely separated points, other than zero, on each scale. (c) Records of these calibrations shall be maintained for two years after the calibration date for inspection by the board.