How is Type B Radioactive Packaging primarily characterized in use?

Type B Radioactive Packaging is specifically designed to handle the transport of high-risk radioactive materials, such as those found in spent nuclear fuel and certain types of radioactive waste that pose significant risks to human health and the environment if not properly contained. This type of packaging is constructed to withstand severe transportation incidents, including accidents that might involve fire, impact, and extreme pressure.

The construction of Type B packaging typically includes robust shielding to minimize radiation exposure, along with features to prevent leakage of radioactive contents. This advanced design allows it to safely transport materials that require stringent containment measures due to their high levels of radioactivity.

In contrast, the other options refer to different types or uses of radioactive packaging that are not consistent with the characteristics of Type B. For example, low-level radioactive materials would usually require Type A packaging, which is appropriate for less hazardous materials. Routine ground transportation is not exclusively the domain of Type B but can involve a range of packaging types depending on the risk level. Lastly, while Type B packaging can be used for medical waste containing radioactive materials, it is not limited to that purpose and is not appropriate solely for medical waste.