What does the term 'combustion hazard' imply regarding a gas?

The term 'combustion hazard' refers to the potential for a gas to ignite and produce combustion under specific conditions. When a gas is described as having a combustion hazard, it indicates that while it might not combust in all scenarios, there are certain situations—such as exposure to a spark, heat, or other ignition sources—that could lead to violent or rapid combustion. This underscores the importance of handling such gases with care and ensuring proper safety measures are in place to mitigate risks.

In contrast, other options suggest either absolute safety or a complete lack of risk associated with fire or explosion, which does not accurately reflect the potential dangers posed by gases classified with a combustion hazard.