GHS, the Globally Harmonized System of Classification and Labeling of Chemicals, was developed by the United Nations as a way to bring into agreement the chemical regulations and standards of different countries. GHS includes criteria for the classification of health, physical and environmental hazards, as well as specifying what information should be included on labels of hazardous chemicals as well as safety data sheets. This page summarizes the relationship of GHS hazard statements, pictograms, signal words, hazard classes, categories, and precautionary statements.

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Hazard Class Pictograms

GHS Hazard Statements

Precautionary Statements

References:
1. Globally Harmonized System of Classification and Labelling of Chemicals (GHS Rev. 9, 2021)
2. UNECE GHS (Rev.8) (2019)
3. UNECE GHS (Rev.7) (2017)

Note: This page provides the current GHS summary. Obsolete H-codes and P-codes are also provided, as they are still in use but annotated as obsolete. For more information, please see the References. This is the permanent link to the GHS 2021 (v9) summary. Please also see the previous GHS 2019 (v8) summary.