Canada Road & Rail Transport - Class 2 Aerosols & Exemptions

Dangerous goods contained in an aerosol container are included in Class 2.1, Flammable Gases, if the dangerous goods contain at least 85% by mass of flammable components and the chemical heat of combustion is greater than or equal to 30 kilojoules per gram. Dangerous goods in aerosol containers are included in Class 2.2, Non-flammable and Non-toxic Gases. This classification applies if the good measures no more than one percent by mass of flammable components and the heat of combustion is less than 20 kilojoules per gram.

The following requirements apply to dangerous goods contained in an aerosol container:

• Must be transported under UN1950, Aerosols
• Must be classified in accordance with Section 31 of Part III of the Manual of Tests and Criteria
• Must not contain gases included in Class 2.3, Toxic Gases
• Must have a subsidiary class of 6.1, Toxic Substances, or Class 8, Corrosive Substances, if the dangerous goods - other than the propellant to be ejected from the aerosol container - are included in Class 6.1, Toxic Substances, Packing Groups II or III, or Class 8, Corrosive Substances, Packing Groups II or III
• Are forbidden for transport when included in Packing Group I for toxicity or corrosiveness

These regulations do not apply to gases included in Class 2.2, Non-flammable and Non-toxic Gases that are contained in foodstuffs, in balls intended for use in sports, in tires, or in lightbulbs that are packaged so that any pieces of a ruptured bulb are contained by the packaging.

To learn more about Transporting Dangerous Goods in Canada visit our Transporting Dangerous Good by Road & Rail Online Training web page.