LEL (Lower Explosion Limit) Conversions


  • Acetone
  • 2.5% by vol
  • Acetylene
  • 2.5% by vol
  • Ammonia
  • 15.0% by vol
  • Benzene
  • 1.2% by vol
  • Butane
  • 1.9% by vol
  • Butyl Alcohol (Butanol)
  • 1.4% by vol
  • Carbon Monoxide
  • 12.5% by vol
  • Diethyl Ether
  • 1.9% by vol
  • Ethane
  • 3.0% by vol
  • Ethyl Alcohol (Ethanol)
  • 3.3% by vol
  • Ethylene
  • 2.7% by vol
  • Ethylene Oxide
  • 2.7% by vol
  • Hexane
  • 1.1% by vol
  • Hydrogen
  • 4.0% by vol
  • Isopropyl Alcohol (Isopropanol)
  • 2.0% by vol
  • Methane
  • 5.0% by vol
  • Methyl Alcohol (Methanol)
  • 6.0% by vol
  • Methyl Ethyl Ketone
  • 1.4% by vol
  • n-Pentane
  • 1.4% by vol
  • Propane
  • 2.1% by vol
  • Propylene
  • 2.0% by vol
  • Styrene
  • 0.9% by vol
  • Toluene
  • 1.1% by vol
  • Xylene
  • 1.1% by vol
  • % Lower Explosive Limit (% LEL) =
  • Gas Concentration (in % vol)         x (100)
  • ------------------------------------                                  
  • Lower Explosive Limit (in % vol)                                                                                                                                                                                                                                    
  • 25% LEL Pentane =
  • (.35% vol) x (100)
  • ------------                                  
  • 1.4% by vol= (100% LEL)

 Link to  How do I convert ppm to % by volume?

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