Which class of UN hazard includes radioactive materials?

The classification of UN hazards is essential for the safe transportation of various types of materials, including potentially dangerous substances. The correct classification for radioactive materials falls under Class 7. This designation specifically addresses materials that emit radiation, such as nuclear fuel, radioactive isotopes, and related items.

Class 7 is specifically tailored to handle any risks associated with radioactive materials, ensuring that they are properly regulated, labeled, and transported to minimize exposure to radiation, thereby protecting public safety and environmental health.

Other classes, like Class 5, are associated with oxidizing substances, and Class 8 covers corrosive materials, while Class 9 encompasses miscellaneous dangerous goods that do not fit neatly into the other categories. None of these classes specifically address the unique hazards posed by radioactive materials, hence reinforcing why Class 7 is the appropriate classification for these substances.