The workplace hazard symbols are easily understandable pictograms that enable you to quickly identify a hazard. They form part of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS).
Figure 1: Hazard pictograms and their meaning.
The GHS chemical hazard pictograms are intended to provide the basis for or to replace national systems of hazard pictograms.
There are also alternative hazard symbols, such as the fire diamond, which is used for hazard labeling in the USA.