Dangerous Goods which are classed as Radioactive materials are defined by the dangerous goods regulations as any material containing radionuclides where both the activity concentration and the total activity exceeds certain pre-defined values. A radionuclide is an atom with an unstable nucleus and which consequently is subject to radioactive decay.
There are no subdivisions within Class 7, Radioactive Material.
Whilst undergoing radioactive decay radionuclides emit ionizing radiation, which presents potentially severe risks to human health.
Classifications of all dangerous goods can be found HERE
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