Medical Air

Medical use, for therapeutic treatment in humans and animals

O2 / Ar / N2

Medical Air is a colourless, odourless gas with a molecular weight of 29.0, a boiling point of -194ºC (at 101.325 kPa) and a density of 1.225 kg/m³ (at 15°C and 101.325 kPa). It contains approximately 21% oxygen, 78% nitrogen and 1% argon with trace amounts of other inert gases, eg xenon, neon, krypton. The nitrogen, argon and trace gases are inert, but the oxygen in air is essential to life for its cellular respiratory function. It is used in a range of clinical situations by doctors, dentists, nurses, veterinarians, anaesthetists, hospitals, day surgeries and so on.

Uses

  • A replacement for atmospheric air
  • Carrier gas for volatile anaesthetics
  • Respiratory use

Product Summary

Gas composition

  • Nitrogen 78%
  • Oxygen 20.4 to 21.4%
  • Argon balance

Impurities

Moisture < 67 ppm
Carbon monoxide < 5 ppm
Carbon dioxide < 500 ppm
Sulphur dioxide < 1 ppm
Nitrous oxide < 2 ppm
Oil < 0.1 mg / m³

Available sizes

UN number: 1002

Download safety data sheet

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Size Product code Volume Weight (full)* Pressure Outlet connection Availability Cert. of conformance
C 229172 0.55 m³ 6.63 kg 19,000 kPa PIN INDEX Fig. 1, 5 Australia wide Download
D 229110 1.8 m³ 16.06 kg 19,000 kPa PIN INDEX Fig. 1, 5 Australia wide Download
SE 229122 4 m³ 37.91 kg 17,600 kPa PIN INDEX Fig. 1, 5 Australia wide Download
G 229142 8.3 m³ 65.24 kg 17,600 kPa PIN INDEX Fig. 1, 5 Australia wide Download
12-pack 229512 110 m³ 1135 kg 19,000 kPa PIN INDEX Fig. 1, 5 Australia wide Download
Additional Details

Physical & chemical properties

Appearance Odour Flammability
AppearanceColourless gas OdourOdourless FlammabilityNon flammable

Hazard class

2.2

Hazard symbol (GHS)

  • Non-flammable non-toxic gas 2.2

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