What is GHS labelling?

The labels of chemicals follow the Globally Harmonized System (GHS).

• A hazard pictogram is a black symbol on a white diamond with a red border; there are nine, GHS01 to GHS09.
• The signal word is Danger for the more severe hazard categories and Warning for the less severe; a label carries one only, the more severe.
• A hazard statement is a standard phrase, coded H followed by three digits, describing a hazard: H2xx physical hazards, H3xx health hazards, H4xx environmental hazards.
• A precautionary statement, coded P and three digits, gives a measure to take: P1xx general, P2xx prevention, P3xx response, P4xx storage, P5xx disposal.
• The safety data sheet is the document the supplier provides with a product, in standard sections: identification, hazards, composition, first aid, fire fighting, handling and storage, exposure controls and protection, physical and chemical properties, stability, toxicity, disposal and transport.