What is the explosive limit range of natural gas?

Natural gas has an explosive limit range, commonly referred to as the lower explosive limit (LEL) and upper explosive limit (UEL). The correct range for natural gas is from 5% to 15% by volume in air. This means that in a mixture with air, natural gas concentrations below 5% are too lean to ignite, while concentrations above 15% are too rich, preventing combustion. The concept of explosive limits is vital for safety inspections, as it helps in identifying potential hazards related to gas leaks and ensuring that areas where gas is present are properly ventilated to remain within safe operational limits. Understanding this range is critical for preventing potential explosions and promoting a safe environment when dealing with natural gas systems.