ontploffingslimiet

An ontploffingslimiet, or explosion limit, refers to the range of concentrations of a flammable gas or vapor in a mixture with air (or another oxidant) that can propagate a flame. Below the lower explosion limit (LEL), the mixture is too lean to burn. Above the upper explosion limit (UEL), the mixture is too rich in fuel and lacks sufficient oxygen to sustain combustion. The range between the LEL and UEL is known as the flammable or explosive range.

The specific values of LEL and UEL vary significantly depending on the substance. Factors such as temperature, pressure, and the presence of inert gases can also influence these limits. Understanding explosion limits is crucial for safety in industrial settings where flammable materials are handled, processed, or stored. It informs the design of ventilation systems, the selection of electrical equipment, and the implementation of procedures to prevent fires and explosions. Monitoring concentrations within these limits is a key aspect of hazard assessment and risk management in many industries, including chemical processing, petroleum refining, and mining.