What type of chemicals require a GHS label?

The correct answer is that all hazardous chemicals require a GHS label. The Globally Harmonized System of Classification and Labelling of Chemicals (GHS) is an international standard that establishes criteria for classifying chemicals based on their hazards and requires specific labeling to ensure safe handling. This includes not only solid chemicals but also liquids and gases that are deemed hazardous.

GHS labels provide important information such as the hazards of the chemical, precautionary statements, handling instructions, and emergency measures. By requiring labels for all hazardous chemicals, the GHS aims to enhance safety in various environments, including workplaces and laboratories, and to foster a better understanding of the risks associated with chemical substances.

While some chemicals, like waste or those with trade names, might have specific labeling requirements, the foundational principle of the GHS is that any chemical classified as hazardous, irrespective of its physical state or designation, must carry a GHS label. This universal requirement is essential for effectively communicating chemical hazards to users and responders.