How is the type of shipping label determined for a package containing radioactive material?

The determination of the type of shipping label for a package containing radioactive material is primarily based on the highest dose rate at the surface of the package and at a distance of 1 meter from the package. This approach is essential for ensuring the safety of workers, transportation personnel, and the public by accurately reflecting the radiation hazard posed by the package.

When classifying radioactive materials for transport, regulations require that the dose rates are measured to assess the potential exposure to radiation from the package. The shipping label signifies the category of radioactivity and informs handlers of the precautions needed while dealing with the package.

This method ensures a standardized assessment of risk based on specific radiation levels, leading to appropriate user and environmental safety measures. In contrast, factors like the weight, size, or distance of the radiation source do not provide sufficient information regarding the radiation exposure risks associated with the package during transport. Therefore, the focus on dose rates ensures that the labeling accurately conveys the necessary safety precautions for handling and transport.