What factor could lead to thermal container failure?

Extreme heat from a nearby fire is a significant risk factor that can lead to thermal container failure. When containers holding hazardous materials are exposed to high temperatures, particularly from external sources like a fire, the integrity of the container can be compromised. Containers are typically designed to withstand a certain range of temperatures, but intense heat can cause the materials to weaken, warp, or even rupture, releasing their contents into the environment. This is particularly critical for containers holding flammable or corrosive substances, as thermal failure could lead to catastrophic consequences such as explosions or hazardous spills.

In contrast, consistent storage at room temperature, regular maintenance checks, and proper containment practices are all measures taken to ensure that the integrity of hazardous materials containers is maintained and that they remain safe for use. These practices help to prevent incidents and damage, but they do not create the same level of risk as exposure to extreme heat.