R 333.5307 Radiation survey instruments.

Rule 307. (1) A registrant shall maintain calibrated and operable radiation survey instruments to make physical radiation surveys as required by R 333.5306 and R 333.5063. A radiation survey instrument shall be calibrated at least annually and after each instrument servicing. A record of the calibration shall be maintained for examination by the department. (2) Instrumentation required by this rule shall have a range such that 0.02 millisievert per hour (2 mrem/h) through 0.01 sievert per hour (1 rem/h) can be measured and shall be capable of measuring radiation of the energies and at the dose rates to be encountered. (3) During repair or calibration of survey instruments required by this rule, spare operable and calibrated instruments shall be provided or class D radiographic operations shall be terminated pursuant to R 333.5306(1).