Lesson 1, Topic 1
In Progress

Class 2 – Gases

  • Products or substances that are transported under pressure or maintained at a low enough temperature to keep them in a liquid form
  • Gases may be liquefied, dissolved or deeply refrigerated
  • May be a mixture of gases or a mixture of gases with one or more vapours of substances included in other classes
  • Articles charged with a gas
  • Aerosols
  • Class 2 is divided into 3 divisions:
    o 2.1 Flammable Gas – Gases that will burn and are easily ignited in a range set out by TDGR 2.14 (a)
    o 2.2 Non-Flammable, Non-Toxic Gas – Gases that pose a danger because they are compressed, are asphyxiants, are oxidizing or do not meet the requirements of the other divisions
    o 2.3 Toxic Gas – Gases that are known or presumed to be toxic or corrosive to humans
  • Aerosols are also transported as gases. Please review the definition of Aerosol container in TDGR 1.4 (Definitions)