Article R4451-48 of the French Labour Code
I.-The employer shall ensure that measuring instruments or devices, contamination detection devices and operational dosimeters are in good working order. II.-The employer shall periodically check these instruments, devices and dosimeters to ensure that their measurement performance is maintained in accordance with their use. This check is carried out or supervised by the radiation protection advisor. It may be followed, if necessary, depending on the deviation found, by an adjustment or…