AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P4030.19H/ DLAI 4145.3 287 11 DECEMBER 2001 Table A11.6.  Authorized Quantities of Uranium Hexafluoride (UF₆) as Fissile Class II. Maximum Inner Cylinder Diameter Maximum Weight of ^UF6 ^Contents Protective Overpack Specification Number Centimeter Inch Kilograms Pounds Maximum U²³⁵ Enrichment (weight %) Minimum Transport Index 20PF-1 20PF-2 20PF-3 21PF-1A or 21PF-1B   (Note 1) 21PF-1A or 21PF-1B   (Note 1) 21PF-2    (Notes 1) 21PF-2      (Note 1) 12.7 20.3 30.5 76 (Note 2) 76 (Note 3) 76 (Note 2) 76 (Note 3) 5 8 12 30 (Note 2) 30 (Note 3) 30 (Note 2) 30 (Note 3)     25    116    209 2,250 2,282 2,250 2,282 55 255 460 4,950 5,020 4,950 5,020 100.0 12.5   5.0 5.0 5.0 5.0 5.0 0.1 0.4 1.1 5.0 5.0 5.0 5.0 NOTES: 1.  For 76 cm cylinders, the maximum permitted H/U atomic ratio is 0.088. 2.  Model 30A inner cylinder (reference: ORO-651). 3. Model 30B inner cylinder (reference: ORO-651). A11.9.  Authorized Packaging-Pyrophoric Radioactive Materials.  Package pyrophoric radioactive materials in quantities not over A₂  per package in DOT Type A packagings constructed of materials that do not react nor be decomposed by the contents.  Contents must be: - In solid form and must not be fissile unless excepted by A3.3.7.9. - Contained in sealed and corrosion resistant receptacles with positive closures (friction or slip-fit covers or stoppers are not authorized). - Free of water and any contaminants that increase the reactivity of the material. - Made inert to prevent self-ignition during transport by either: - Mixing with large volumes of inerting materials such as graphite or dry sand, or other suitable inerting material, or blended into a matrix of hardened concrete. - Filling the innermost receptacle with an appropriate inert gas or liquid. A11.10.    Authorized  Packaging-Oxidizing  Radioactive  Materials.    Package   certain   oxidizing   radioactive materials,  which  are  not  fissile  materials  and  not  in  quantities  over  A₂,  in  DOT  Type  A  packaging.    The requirements apply to the contents and packaging: - Pack in suitable inside packagings of glass, metal, or compatible plastic. - Suitably cushion with a material which will not react with the contents. - Inner packaging and cushioning must be enclosed within an outside packaging of wood, metal, or plastic. - The  package  must  be  capable  of  meeting  the  applicable  test  requirements  of  49  CFR  173.465  without leakage of contents. - The maximum quantity in any package must not be over 11.3 kg (25 pounds).