Class 2 Compressed Gases
These may also be toxic, flammable, corrosive or oxidising. The cylinder contents are usually identifiable by the label or cylinder colour coding.

Class 2 Gases are divided into three groups:
2.1 Flammable gases
2.2 Non-flammable, non-toxic gases
2.3 Toxic gases

Aerosols fall within Class 2. All aerosols, flammable or not, are classed as ‘dangerous goods’ and therefore have a unique UN number. The number for aerosols is UN 1950.

Interesting facts about aerosols:
Aerosols were invented by Norwegian Erik Rotheim in the 1920s to help him put wax on his skis.
The first aerosols made in the UK were insecticides and air fresheners in 1949.
The most popular aerosols are deodorants and body sprays. They were first made in the UK in 1954.
UK aerosols have not contained CFCs since 1989.
Empty aerosols can be recycled.

Examples of Class 2 Compressed Gases
Aerosols Butane Propane Carbon dioxide
Nitrogen Lecture bottles

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