Combustion Testing

Gases Certified to Industry Standards

Air Liquide - With its own UK high-purity methane production unit manufactures pure gases and gas mixtures that are used for research and testing of combustion systems and Confirmation of Production (C.O.P.) for boiler and gas appliance manufacturers.

Our G-Series Test Gases are certified for composition, Calorific Value (CV) and Wobbe Index (WI) in line with EN 437 and most common test gases are maintained in stock to offer short delivery times.

Filter Results
  • Product Family

    • EN437 Test Gas
    • Ethane
    • Ethylene
    • Isobutane
    • Isobutene, Isobutylene
    • Isobutylene
    • N-Butane
    • Natural Gas
    • Oxygen
    • Propane
    • Propylene
  • Grade

    • -
    • 2.5
    • 3.0
    • 3.5
    • 4.0
    • 4.5
    • 5.0
    • 5.5
    • ALPHAGAZ™ 1
  • Purity

    • -
    • 99.5
    • >99.5
    • >99.9
    • >99.95
    • >99.99
    • >99.955
    • >99.995
    • >99.999
    • >99.9995
  • Size (Litres)

    • 10L
    • 20L
    • 45L
    • 50L
    • 110L
    • Pack (50L x 16)