Section 325.5464. DEQ Did not provide language. Testing sealed sources for leakage and contamination.

(1) All sealed sources with a half-life exceeding 30 days and in any form other than gas shall be tested for leakage, contamination or both before initial use and at intervals not to exceed 6 months unless a longer interval is granted by specific license condition. If there is reason to suspect that a sealed source might have been damaged, or might be leaking, it shall be tested for leakage before further use.

(2)    Leak tests shall be capable of detecting the presence of 5 nanocuries of radioactive material on the test sample or, in the case of radium, the escape of radon at the rate of 1 nanocurie per 24 hours. Any test conducted pursuant to subrule (1) which reveals the presence of 5 nanocuries or more of removable contamination or, in the case of radium, the escape of radon at the rate of 1 nanocurie or more per 24 hours shall be considered evidence that the sealed source is leaking. The licensee shall immediately withdraw the source from use and shall cause it to be decontaminated and repaired or to be disposed of in accordance with applicable provisions of part 5.

(3)   Leak test results shall be recorded in units of nanocuries and maintained for inspection as required by rule 245.

History: 1979 AC.