Class 4.3 hazard: Substances which, in contact with water emit flammable gases 4.3 - Flame: black Blue 4 - or white (black or white) Figure in bottom Division or Symbol and corner model Background Note Category symbol colour (and No. label figure colour) Class 5.1 hazard: Oxidizing substances 5.1 - Flame over Yellow 5.1 - circle: black (black) Class 5.2 hazard: Organic peroxides 5.2 - Flame: black half 5.2 - or white red, (black) lower half yellow Class 6.1 hazard: Toxic substances 6.1 - Skull and 6 - crossbones: (black) black Class 6.2 hazard: Infectious substances 6.2 - Three White 6 The lower half crescents of the superimposed may bear the on a circle: inscriptions: black “INFECTIOUS SUBSTANCE” and the case of “In damage or leakage immediately notify Public Health
Class 4.3 hazard: Substances which, in contact with water emit flammable gases 4.3 - Flame: black or white Blue 4 (black or white) - model No. Division or Category Symbol and symbol colour Background Figure in bottom corner (and figure colour) Note Class 5.1 hazard: Oxidizing substances 5.1 - Flame over circle: black Yellow 5.1 (black) - Class 5.2 hazard: Organic peroxides 5.2 - Flame: black or white half red, lower half yellow 5.2 (black) - Class 6.1 hazard: Toxic substances 6.1 - Skull and crossbones: black 6 (black) - Class 6.2 hazard: Infectious substances 6.2 - Three crescents superimposed on a circle: black White 6 The lower half of the label may bear the inscriptions: “INFECTIOUS SUBSTANCE” and “In the case of damage or leakage immediately notify Public Health