or if their heat of combustion is at least 20 kJ/g.
NOTE 1: Flammable components do not cover pyrophoric, self-heating or water-reactive substances and mixtures because such components are never used as aerosol contents.
NOTE 2: Aerosols do not fall additionally within the scope of Sections 2.2 (flammable gases), 2.5 (gases under pressure), 2.6 (flammable liquids) and 2.7 (flammable solids). Depending on their contents, aerosols may however fall within the scope of other hazard classes, including their labelling elements.
Figure 2.3.1 (a)
Figure 2.3.1 (b)
Figure 2.3.1 (c)