LEAK TESTING
SECTION 3: LEAK TESTING
Periodic leak testing of the radioactive sources used in the storage container are required by most
national and international regulations. The leak test provides a confirmation of the integrity of the
hermetically welded sealed source by determining the amount of removable contamination. In most
regulatory jurisdictions, a leak test of a sealed source must be performed
every 6 months
or prior to its
first use after removal from storage. Acceptable results of a radio-assay must indicate removable
contamination in less than <185 Bq (0.005 µCi).
Evaluation of depleted sources for return to QSA Global, Inc. should be leak tested while still contained
in their exposure device in accordance with the applicable device procedures. This test must be
performed in a properly secured Controlled Area. The individual performing this test should wear a
direct reading pocket dosimeter and either a film badge or thermoluminescent dosimeter. The individual
should also use a properly calibrated and operable radiation survey instrument.
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