What does the term "combustible" refer to in a safety context?

In a safety context, the term "combustible" refers specifically to materials that can ignite and burn when exposed to a sufficient heat source. These materials have the ability to catch fire and sustain a flame, making them significant in discussions about fire hazards and prevention strategies. Understanding this term is crucial in many environments, especially in industries where products and processes involve flammable materials, as it informs safety practices, storage procedures, and emergency protocols.

The other options do not accurately represent the definition of "combustible." Non-flammable materials are those that do not ignite easily, while something that is stable under temperature changes does not specifically address its ability to burn. Recyclable material pertains to the ability to be repurposed rather than its flammability. By recognizing the characteristics of combustible materials, professionals can take appropriate precautions to manage fire risks.