Dangerous Gases


Gases are defined by dangerous goods regulations as substances which have a vapour pressure of 300 kPa or greater at 50°c or which are completely gaseous at 20°c at standard atmospheric pressure, and items containing these substances. The class encompasses compressed gases, liquefied gases, dissolved gases, refrigerated liquefied gases, mixtures of one or more gases with one or more vapours of substances of other classes, articles charged with a gas and aerosols.


  • Division 2.1: Flammable gases
  • Division 2.2: Non-flammable, non-toxic gases
  • Division 2.3: Toxic gases

Reason for Regulation

Gases are capable of posing serious hazards due to their flammability, potential as asphyxiants, ability to oxidize and/or their toxicity or corrosiveness to humans.

Commonly Transported Gases


  1. Compressed air
  2. Hydrocarbon gas-powered devices
  3. Fire extinguishers
  4. Gas cartridges
  5. Fertilizer ammoniating solution
  6. Insecticide gases
  7. Refrigerant gases
  8. Lighters
  9. Acetylene / Oxyacetylene
  10. Carbon dioxide
  11. Helium / helium compounds
  12. Hydrogen / hydrogen compounds
  13. Oxygen / oxygen compounds
  14. Nitrogen / nitrogen compounds
  15. Natural gas
  16. Oil gas
  17. Petroleum gases
  18. Butane
  19. Propane
  20. Ethane
  21. Methane
  22. Dimethyl ether
  23. Propene / propylene
  24. Ethylene



DGI are proficient in handling gases, Class 2 Dangerous Goods. DGI have the ability to service all customer requests pertaining to the logistics of gases; packing, packaging, compliance, freight forwarding and training.