Which factor can directly lead to an unsafe situation for gas containers?

Extreme temperatures can directly lead to unsafe situations for gas containers because both high and low temperatures can affect the integrity and functionality of the container. High temperatures can increase the pressure inside a gas container, potentially leading to leaks or ruptures, while low temperatures may cause brittle fracture in certain materials. Thus, maintaining gas containers within a controlled temperature range is essential to ensure their safety and prevent hazardous situations.

Regular use does not inherently create unsafe conditions; rather, it is the management of how the containers are used and maintained that matters. Proper labeling is crucial for safety but does not directly impact the physical condition of the gas containers themselves. Standard storage conditions aim to create a safe environment for gas containers, but if those conditions involve extreme temperatures, that could negate their effectiveness. The key takeaway is that temperature extremes are a direct risk to the structural integrity of gas containers.