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IG-541 (Inergen)

IG-541 (Inergen)


  • Suitable for occupied areas
  • Electrically non – conductive
  • No residue to clean up after the discharge
  • Zero Ozone Depletion Potential
  • No greenhouse effect
  • No decomposition products

IG-541 (Inergen) is an inert gas comprising of 50% Nitrogen, 42% Argon & 8% Co², it is naturally present in the atmosphere, therefore its green-house effect is nil and its ozone layer depletion potential is zero. It is chemically inert, non-conductive, colourless, odourless and flavourless. IG-541 (Inergen) is non-corrosive and may be used at normal temperatures with such materials as nickel, steel, stainless steel, copper, brass, bronze and plastics.

IG-541 (Inergen) suppression systems are based in the principle of reducing the oxygen concentration inside the protected hazard. The oxygen concentration is minimized by the application of IG-541 (Inergen) until it reaches a level where combustion is no longer supported. Each system is designed so as to decrease oxygen to a specific level. When discharged, IG-541 (Inergen) is quickly  and uniformly distributed within the enclosure, achieving design concentration in 60 seconds.

Typical Applications
  • Clean Rooms
  • Computer Suites
  • Operation Rooms
  • Control Rooms
  • Substations
  • Generators

Chemical name

IG-541 (Inergen)

Chemical formula

Ar , N² & Co²

Molecular weight


Boiling point at 1.013 bar


Design Concentration Class A


Design Concentration Higher Hazard Class A






Greenhouse effect potential



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