Globally harmonized system of classification and labelling of chemicals (GHS) - United Nations

The GHS addresses classification of chemicals by types of hazard and proposes harmonized hazard communication elements, including labels and safety data sheets. It aims at ensuring that information on physical hazards and toxicity from chemicals be available in order to enhance the protection of human health and the environment during the handling, transport and use of these chemicals. The GHS also provides a basis for harmonization of rules and regulations on chemicals at national, regional and worldwide level, an important factor also for trade facilitation. This third revised edition contains various new and revised provisions concerning, inter alia, new provisions for the allocation of hazard statements and for the labelling of small packagings, two new sub-categories for respiratory and skin sensitization, the revision of the classification criteria for long-term hazards (chronic toxicity) to the aquatic environment, and a new hazard class for substances and mixtures hazardous to the ozone layer.