§ 225.92. Radiation survey meter calibration requirements.
(a) In addition to the requirements of § 225.91 (relating to survey meter requirements), instruments required by this chapter shall have a range so that 2 mR (0.516 µC/kg) per hour through 1 R (258 µC/kg) per hour can be measured.
(b) Each radiation instrument shall be calibrated:
(1) At energies appropriate for use.
(2) At intervals not to exceed 6 months.
(3) After each instrument servicing, other than battery replacement.
(4) To within an accuracy of +/- 20%.
(5) At two points located approximately one-third and two-thirds of full scale on each scale of linear scale instruments; at mid-range of each decade and at two points of at least 1 decade for logarithmic scale instruments; and for digital instruments, at three points between 2 mR (0.516 µC/kg) and 1,000 mR (258 µC/kg) per hour.
(6) By a person authorized by the Department, the NRC or an agreement state.
(c) Calibration records shall be maintained for inspection by the Department for 5 years after the date of calibration.
Source The provisions of this § 225.92 amended August 11, 2023, effective 90 days after publication, 53 Pa.B. 4977. Immediately preceding text appears at serial pages (304547) to (304548).
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