Class 5.1 hazard: Oxidizing substances Label model No. 5.1 Symbol and symbol colour: Flame over circle, black Background: yellow Figure in bottom corner (and figure colour): 5.1 (black)

Class 6.1 hazard: Toxic substances Label model No. 6.1 Symbol and symbol colour: Skull and crossbones, black Background: white Figure in bottom corner (and figure colour): 6 (black)

Class 8 hazard: Corrosive substances Label model No. 8 Symbol and symbol colour: Liquids, spilling from two glass vessels and attacking a hand and a metal, black Background: Upper half white, lower half black with white border Figure in bottom corner (and figure colour): 8 (white)

Environmentally hazardous substance mark: The mark shall be in the form of a square set at an angle of 45° (diamond-shaped). The symbol (fish and tree) shall be black on white or suitable contrasting background. The minimum dimensions shall be 100 mm x 100 mm and the minimum width of the line forming the diamond shall be 2 mm. If the size of the package so requires, the dimensions/line thickness may be reduced, provided the mark remains clearly visible. Where dimensions are not specified, all features shall be in approximate proportion to those shown.