In the context of explosions, what is MEC an abbreviation for?

MEC stands for Minimum Explosive Concentration, which is the lowest concentration of a substance in air that can produce an explosive atmosphere when ignited. Understanding this concept is vital in explosion hazard assessment because it helps determine the necessary conditions under which an explosive event can occur. By knowing the MEC, safety professionals can set appropriate limits for the storage and handling of hazardous materials, ensuring that concentrations remain below this threshold to prevent explosive incidents. This understanding is foundational for managing explosion risks in various industrial and laboratory settings where flammable substances are used or produced.