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The Pennsylvania Code website reflects the Pennsylvania Code changes effective through 53 Pa.B. 6142 (September 30, 2023).

25 Pa. Code § 225.92. Radiation survey meter calibration requirements.

§ 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.


   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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