At what percentage does the Lower Explosive Limit (LEL) for Ammonia start?

The Lower Explosive Limit (LEL) for ammonia is defined as the lowest concentration of ammonia in air that can ignite and cause a fire or explosion. This concentration is typically around 15% by volume in air. At this percentage, the mixture is flammable, and any concentration below this limit will be too lean to sustain combustion.

Understanding the significance of the LEL is critical for safety in environments where ammonia is used or stored, as staying below this threshold helps prevent hazardous situations. By knowing that the LEL for ammonia is set at 15%, operators can implement proper safety measures and monitor concentrations to keep them within safe limits.