Uranium hexafluoride (fissile, fissile excepted and non-fissile).

(a)In addition to any other applicable requirements of this subchapter, quantities greater than 0.1 kg of fissile, fissile excepted or non-fissile uranium hexafluoride must be offered for transportation as follows:#

(1)Before initial filling and during periodic inspection and test, packagings must be cleaned in accordance with American National Standard N14.1 (IBR, see § 171.7 of this subchapter).#

(2)Packagings must be designed, fabricated, inspected, tested and marked in accordance with—#

(i)American National Standard N14.1 in effect at the time the packaging was manufactured; or#

(ii)[Reserved]#

(iii)Section VIII of the ASME Code (IBR, see § 171.7 of this subchapter), provided the packaging—#

(A)Was manufactured on or before June 30, 1987;#

(B)Conforms to the edition of the ASME Code in effect at the time the packaging was manufactured;#

(C)Is used within its original design limitations; and#

(D)Has shell and head thicknesses that have not decreased below the minimum value specified in the following table:#

Packaging model Minimum thickness; millimeters (inches) 1S, 2S 1.58 (0.062) 5A, 5B, 8A 3.17 (0.125) 12A, 12B 4.76 (0.187) 30B 7.93 (0.312) 48A, F, X, and Y 12.70 (0.500) 48T, O, OM, OM Allied, HX, H, and G 6.35 (0.250)#

(3)Each package shall be designed so that it will:#

(i)Withstand a hydraulic test at an internal pressure of at least 1.4 MPa (200 psig) without leakage;#

(ii)Withstand the test specified in § 173.465(c) without loss or dispersal of the uranium hexafluoride; and#

(iii)Withstand the test specified in 10 CFR 71.73(c)(4) without rupture of the containment system.#

(4)Uranium hexafluoride must be in solid form.#

(5)The volume of solid uranium hexafluoride, except solid depleted uranium hexafluoride, at 20 °C (68 °F) may not exceed 61% of the certified volumetric capacity of the packaging. The volume of solid depleted uranium hexafluoride at 20 °C (68 °F) may not exceed 62% of the certified volumetric capacity of the packaging.#

(6)The pressure in the package at 20 °C (68 °F) must be less than 101.3 kPa (14.7 psia).#

(b)Each packaging for uranium hexafluoride must be periodically inspected, tested, marked and otherwise conform with the American National Standard N14.1.#

(c)Each repair to a packaging for uranium hexafluoride must be performed in accordance with the American National Standard N14.1.#

(d)Uranium hexafluoride not exceeding the limits specified in the limited quantity package limits column of table 4 in § 173.425 may be classified as UN 3507, Uranium hexafluoride, radioactive material, excepted package, less than 0.1 kg (0.22 pounds) per package, non-fissile or fissile-excepted, provided that:#

(1)The mass of uranium hexafluoride in the package is less than 0.1 kg (0.22 pounds); and#

(2)The conditions of §§ 173.24, 173.24a, and 173.421(a) and (d) are met.#

(e)For a package containing 0.1 kg or more of UF6, the proper shipping name and UN number “Radioactive material, uranium hexafluoride, UN 2978” must be used for the transportation of non-fissile or fissile-excepted uranium hexafluoride and the proper shipping name and UN number “Radioactive material, uranium hexafluoride, fissile, UN 2977” must be used for the transport of fissile uranium hexafluoride.#