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Current through Register Vol. 60, No. 12, December 1, 2021
(1) Requirements for sealed sources installed after September 1, 2002:
(a) Must have been evaluated in accordance with 10 CFR 32.210 or the equivalent state regulation;(b) Must be doubly encapsulated;(c) Must use radioactive material that is as nondispersible as practical and that is as insoluble as practical if the source is used in a wet-source-storage or wet-source-change irradiator;(d) Must be encapsulated in a material resistant to general corrosion and to localized corrosion, such as 316L stainless steel or other material with equivalent resistance if the sources are for use in irradiator pools; and(e) In prototype testing of the sealed source, must have been leak tested and found leak-free after each of the tests described in OAR 333-121-0100(2) through 333-121-0100(7).(2) Temperature. The test source must be held at -40ûC for 20 minutes, 600ûC for one hour, and then be subjected to thermal shock test with a temperature drop from 600ûC to 20ûC within 15 seconds.
(3) Pressure. The test source must be twice subjected for at least five minutes to an absolute external pressure of 2 million newtons per square meter.
(4) Impact. A 2 kilogram steel weight, 2.5centimeters in diameter, must be dropped from a height of 1 meter onto the test source.
(5) Vibration. The test source must be subjected three times for ten minutes each to vibrations sweeping from 25 hertz to 500 hertz with a peak amplitude of five times the acceleration of gravity. In addition, each test source must be vibrated for 30 minutes at each resonant frequency found.
(6) Puncture. A 50 gram weight and pin, 0.3centimeter pin diameter, must be dropped from a height of 1 meter onto the test source.
(7) Bend. If the length of the source is more than 15 times larger than the minimum cross-sectional dimension, the test source must be subjected to a force of 2000 newtons at its center equidistant from two support cylinders, the distance between which is ten times the minimum cross-sectional dimension of the source.
Or. Admin. R. 333-121-0100
PH 5-2005, f. & cert. ef. 4-11-05
Stat. Auth.: ORS 453.675
Stats. Implemented: ORS 453.675
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