What is the primary characteristic of Type B radioactive containers?

Type B radioactive containers are specifically designed to transport radioactive materials that pose a substantial risk if accidentally released. These containers are built to withstand severe conditions, including significant impacts, punctures, and high temperatures, which may occur during transportation accidents. The primary function of Type B containers is to ensure the safe delivery of high-level radioactive waste and other hazardous radioactive materials, thereby addressing scenarios that involve potentially dangerous incidents.

The focus on serious accidents emphasizes the robust engineering and safety measures incorporated into Type B containers, differentiating them from other types of containers that might be used for less hazardous materials or situations where the risk of an accident is considerably lower. Thus, their primary characteristic is their capability to handle materials that could lead to serious consequences if not properly contained during transport.