What distinguishes Type B packages from other packaging types?

Type B packages are specifically designed to transport hazardous materials, particularly radioactive substances, in a manner that ensures safety during severe accident conditions. This characteristic is crucial because radioactive materials can pose significant risks if released into the environment, and Type B packaging is built to endure extreme physical stresses, such as impacts and fire.

In contrast to the other options, Type B packages are not limited to non-hazardous materials or specific to gaseous substances. They also are not only for low-level radioactive materials; rather, they are suitable for a range of radioactive materials, including high-level waste. The rigorous design and testing standards for Type B packages reflect their purpose of safely containing and transporting potentially dangerous materials under harsh conditions.