Paragraph 1
A substance which is packed in an aerosol dispenser shall be classified as dangerous for supply at least as “flammable” if that dispenser contains either—
(a)
more than 45 per cent by weight of flammable substances; or
(b)
more than 250 grams of flammable substances.
For the purposes of this paragraph, “flammable substances” means highly flammable gases or flammable liquids having flash points equal to or less than 100°C.