Radioactive Sealed Source
Leakage Testing

Radioactive sealed sources are required to be leakage tested at least every two years to demonstrate the integrity of their encapsulation [IRR99 Reg. 27(3)]. A record of the test should be kept for at least that period, or until a subsequent test.

Radman Associates assist with statutory wipe tests and certify satisfactory results after analysis of the swab.

If loose contaminating material is detected, recommendations are made as to the suitability of the source for continued use.

Test certificates based on international standards, confirm the satisfactory state of your radioactive sealed source.

Need help?

To arrange a radioactive sealed source leakage test please
email Jill Wilkinson or call 0845 226 7248.

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Radiation protection advice

RPA Service Contracts
Radiological Assessment
   (For RSA93 compliance)
Critical Examination
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Frequency of testing

If the source is employed in equipment which is located in a hostile environment (e.g. at risk from chemical attack, heat or physical damage) the frequency of testing should be increased accordingly to detect any breakdown in the source containment.

The necessity for a test is to be decided by the employer based on the likelihood of leakage and the type of source; tests may not be appropriate on sources which have dimensions no greater than 5mm, such as microspheres.