Quick answer
IMO Class 7 (Radioactive Material) covers: Materials that contain radionuclides, such as uranium, plutonium, and thorium. Typical examples include uranium, plutonium, thorium. Shipments in this class must be declared with their UN number and packing group, and carriers must be certified for dangerous goods transport.
Subclasses
- Category IWhite label with one red vertical line. The transport index must not exceed 0, and radiation levels on the surface must not exceed 0.005 mrem/hr.
- Category IIYellow label with two red vertical lines followed by a maximum index reading on the surface, up to 1.0, and surface radiation level greater than 0.5 mrem/hr, but no more than 50 mrem/hr.
- Category IIIPackages with a maximum surface radiation level of 200 mrem/hr, or containers whose transport index is less than or equal to 1.0.
- Category IVFissionable materials. This label is white and must contain the word "FISSIONABLE" in black at the top.
Typical cargo
Uranium, plutonium, thorium
All IMO classes
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