- (a) The control panel shall have a timer that is graduated in minutes and fractions of minutes or seconds. The timer shall have a preset time selector and an elapsed time indicator.
- (b) The timer shall be cumulative and activated only during irradiation and shall retain its reading after irradiation is interrupted or terminated.
- (c) The timer shall terminate irradiation when a preselected time has elapsed if the dose monitoring systems fail to do so.
Source
The provisions of this § 228.71 adopted October 2, 1998, effective October 3, 1998, 28 Pa.B. 4894.