Separation distances for undeveloped film from packages containing Class 7 (radioactive) materials.

No person may carry in an aircraft any package of Class 7 (radioactive) materials required by § 172.403 of this subchapter to be labeled Radioactive Yellow-II or Radioactive Yellow-III closer than the distances shown in the table below to any package marked as containing underdeveloped film.#

Transport index Minimum separation distance to nearest undeveloped film for various times in transit Up to 2 hours 2 to 4 hours 4 to 8 hours 8 to 12 hours Over 12 hours Meters Feet Meters Feet Meters Feet Meters Feet Meters Feet 0.1 to 1.0 0.3 1 0.6 2 0.9 3 1.2 4 1.5 5 1.1 to 5.0 0.9 3 1.2 4 1.8 6 2.4 8 3.3 11 5.1 to 10.0 1.2 4 1.8 6 2.7 9 3.3 11 4.5 15 10.1 to 20.0 1.5 5 2.4 8 3.6 12 4.8 16 6.6 22 20.1 to 30.0 2.1 7 3 10 4.5 15 6 20 8.7 29 30.1 to 40.0 2.4 8 3.3 11 5.1 17 6.6 22 9.9 33 40.1 to 50.0 2.7 9 3.6 12 5.7 19 7.2 24 10.8 36#