What does LEL stand for in relation to flammable gases?

LEL stands for Lower Explosion Limit. This term is critical in hazardous materials management and safety protocols involving flammable gases. The Lower Explosion Limit represents the minimum concentration of a gas or vapor in air below which a flame will not propagate. This means that if the concentration of the flammable substance is lower than the LEL, it cannot ignite because there is not enough fuel to sustain combustion.

Understanding LEL is essential for safety when working with flammable materials. Knowing the LEL helps Hazmat technicians assess the risk of explosion in various environments and take appropriate measures to mitigate those risks, such as ensuring proper ventilation or using appropriate personal protective equipment.