Radiation Class 7 is not a term related to radiation. The search results show that radiation is a process of heat transfer from one place to another in the form of electromagnetic waves. It is also a term used to describe the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization. However, the search results do not provide any information about a specific radiation class 7. There is a Hazard Class 7: Radioactive Material, which is a classification for materials that contain unstable isotopes of an element undergoing decay and emitting radiation.