The Globally Harmonised System of Classification and Labelling of Chemicals (GHS) is a system for chemical hazard communication.
 
GHS Labels are used to minimize or prevent adverse effects caused by exposure to hazardous products.
 
The exploding bomb pictogram appears on the chemical labels of substances that are:
Explosives—which is a solid or liquid chemical capable of a chemical reaction that causes damage to the surroundings,
Self-Reactive—heating may cause fire or explosion without the need for air, or
Organic peroxides—again, heating may cause fire or explosion.