6 Colo. Code Regs. § 1007-1-16.9
Current through Register Vol. 47, No. 11, June 10, 2024
Section 6 CCR 1007-1-16.9 - Leak testing of sealed sources16.9.1 Requirements. Each licensee who uses a sealed source shall have the source tested for leakage periodically. The licensee shall keep a record of leak test results in units of becquerel (Bq) or microcuries (uCi) and retain the record for inspection by the Department for 3 years after the leak test is performed.
16.9.2 Method of Testing.16.9.2.1 Tests for leakage shall be performed using a leak test kit or method approved by the Department, the NRC, or an Agreement State.16.9.2.2 The wipe test sample shall be taken from the nearest accessible point to the surface of the sealed source where contamination is likely to accumulate.16.9.2.3 The wipe test sample shall be analyzed for radioactive contamination.16.9.2.4 The analysis shall be capable of detecting the presence of 185 Bq (0.005 microcuries) of radioactive material on the wipe test sample and must be performed by a person specifically approved by the Department, the NRC, or an Agreement State to perform the analysis. 16.9.3 Test Frequency. 16.9.3.1 Each sealed source of radioactive material (except an energy compensation source (ECS)) shall be tested at intervals not to exceed 6 months. In the absence of a certificate from a transferor indicating that a test has been made within 6 months prior to the transfer, the sealed source shall not be used until tested.16.9.3.2 Each ECS that is not exempt from testing in accordance with 16.9.5 must be tested at intervals not to exceed 3 years. In the absence of a certificate from a transferor indicating that a test has been made within the 3 years prior to the transfer, the ECS shall not be used until tested.16.9.4 Leaking or Contaminated Sources. If, for any reason, it is suspected that a sealed source may be leaking, it shall be removed from service immediately and tested for leakage as soon as practical.
16.9.4.1 If the wipe test reveals the presence of 185 Bq (0.005 microcuries) or more of removable radioactive material, the licensee shall immediately withdraw the source from use and shall cause it to be decontaminated and repaired, or disposed of, by a licensee authorized by the Department, the NRC, or Agreement State to perform these functions.16.9.4.2 The licensee shall check the equipment associated with the leaking source for radioactive contamination and, if contaminated, have it decontaminated or disposed of by a licensee authorized by the Department, NRC, or Agreement State to perform these functions.16.9.4.3 The licensee shall submit a report to the Department within 5 days of receiving the test results. The report must describe the equipment involved in the leak, the test results, any contamination which resulted from the leaking source, and the corrective action taken up to the time the report is made.16.9.5 Exemptions from testing requirements. The following sources are exempted from the periodic leak test requirements of 16.9.1 through 16.9.4:
16.9.5.1 Hydrogen-3 (tritium) sources;16.9.5.2 Sources of radioactive material with a half-life of 30 days or less;16.9.5.3 Sealed sources of radioactive material in gaseous form;16.9.5.4 Sources of beta- or gamma-emitting radioactive material with an activity of 3.7 MBq (100 microcuries) or less; and16.9.5.5 Sources of alpha - or neutron emitting radioactive material with an activity of 0.37 MBq (10 microcuries) or less.Colorado Register, Vol 37, No. 14. July 25, 2014, effective 8/14/201438 CR 02, January 25, 2015, effective 2/14/201538 CR 05, March 10, 2015, effective 3/30/201538 CR 12, June 25, 2015, effective 7/15/201538 CR 14, July 25, 2015, effective 8/14/201539 CR 02, January 25, 2016, effective 2/14/201639 CR 16, August 25, 2016, effective 9/14/201639 CR 22, November 25, 2016, effective 12/15/201640 CR 11, June 10, 2017, effective 6/30/201740 CR 20, October 25, 2017, effective 11/14/201742 CR 24, December 25, 2019, effective 1/14/202043 CR 14, July 25, 2020, effective 8/14/202043 CR 18, September 25, 2020, effective 10/15/202044 CR 11, June 10, 2021, effective 7/15/202144 CR 14, July 25, 2021, effective 8/14/202145 CR 22, November 25, 2022, effective 12/15/2022