6 Colo. Code Regs. § 1007-1-5.10
Current through Register Vol. 47, No. 11, June 10, 2024
Section 6 CCR 1007-1-5.10 - Leak Testing and Replacement of Sealed Sources5.10.1 The replacement of any sealed source fastened to or contained in a radiographic exposure device and the leak testing of any sealed source must be performed by persons authorized to do so by the Department, the Nuclear Regulatory Commission, or another Agreement State.5.10.2 The opening, repair, or modification of any sealed source must be performed by persons specifically authorized to do so by the Department, the Nuclear Regulatory Commission, or another Agreement State.5.10.3 Testing and recordkeeping requirements. 5.10.3.1 Each licensee who uses a sealed source shall have the source tested for leakage at intervals not to exceed 6 months. The leak testing of the source must be performed using a method approved by the Department, the Nuclear Regulatory Commission, or by another Agreement State. The wipe sample should be taken from the nearest accessible point to the sealed source where contamination might accumulate. The wipe sample must be analyzed for radioactive contamination. The analysis must be capable of detecting the presence of 185 becquerel (0.005 µCi) of radioactive material on the test sample and must be performed by a person specifically authorized by the Department, the Nuclear Regulatory Commission, or another Agreement State to perform the analysis.5.10.3.2 The licensee shall maintain records of the leak tests in accordance with 5.27.5.10.3.3 Unless a sealed source is accompanied by a certificate from the transferor that shows that it has been leak tested within 6 months before the transfer, it may not be used by the licensee until tested for leakage. Sealed sources that are in storage and not in use do not require leak testing, but must be tested before use or transfer to another person if the interval of storage exceeds 6 months.5.10.4 Any test conducted pursuant to 5.10.2 and 5.10.3 that reveals the presence of 185 becquerel (0.005 µCi) or more of removable radioactive material must be considered evidence that the sealed source is leaking. The licensee shall immediately withdraw the equipment involved from use and shall have it decontaminated and repaired or disposed of in accordance with Department regulations. A report must be filed with the Department within 5 days of any test with results that exceed the threshold in this paragraph, describing the equipment involved, the test results, and the corrective action taken.5.10.5 Each exposure device using depleted uranium (DU) shielding and an "S" tube configuration must be tested for DU contamination at intervals not to exceed 12 months. 5.10.5.1 The analysis must be capable of detecting the presence of 185 becquerel (0.005 µCi) of radioactive material on the test sample and must be performed by a person specifically authorized by the Department, the Nuclear Regulatory Commission, or another Agreement State to perform the analysis.5.10.5.2 Should such testing reveal the presence of DU contamination, the exposure device must be removed from use until an evaluation of the wear of the S-tube has been made.5.10.5.3 Should the evaluation reveal that the S-tube is worn through, the device may not be used again. DU shielded devices do not have to be tested for DU contamination while not in use and in storage.5.10.5.4 Before using or transferring such a device, however, the device must be tested for DU contamination, if the interval of storage exceeds 12 months.5.10.5.5 A record of the DU leak-test must be made in accordance with 5.27.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