The Globally Harmonized System of Classification and Labeling of Chemicals (GHS) is an internationally agreed-upon standard managed by the United Nations that was set up to replace the assortment of hazardous material classification and labeling schemes previously used around the world. Core elements of the GHS including standardized hazard testing criteria, universal warning pictograms, and harmonized safety data sheets which provide users of dangerous goods with a host of information.
GHS Symbols

acute toxicity symbol carcinogen symbol chemical hazard symbols chemical safety label Compressed gas Corrosive corrosive symbol environmental hazard symbol Explosive explosive material symbol Flammable flammable symbol gas cylinder symbol ghs label ghs pictograms Harmful hazard communication Health hazard health hazard symbol irritant symbol Oxidizing oxidizing agent symbol Pictogram signage cad drawings Toxic toxic substance symbol