You would be hard-pressed to walk into a workplace anywhere in the world and not observe diamond pictograms on containers and binders of safety data sheets (SDSs). Pictograms on labels and SDSs are just two components of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS). GHS requires chemical manufacturers and employers to determine the intrinsic hazards of chemical substances and then to convey that information effectively to workers. It aims to provide a uniform system for chemical classification and hazard communication around the world.
This article focuses on the implementation of GHS in the U.S., Canada, European Union, and China.