Division 2.2 (non-flammable, nonpoisonous compressed gas -- including compressed gas, liquefied gas, pressurized cryogenic gas, compressed gas in solution, asphyxiant gas and oxidizing gas). A non-flammable, nonpoisonous compressed gas (Division 2.2) means any material (or mixture) which:
Exerts in the packaging an absolute pressure of 280 kPa (40.6 psia) or greater at 20 °C (68 °F), and
Does not meet the definition of Division 2.1 or 2.3.