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Classification and Labelling

The main purpose of classification and labelling of substances and preparations is hazard communication.

Correct classification and labelling ensures that individuals handling chemicals at all stages of the supply chain, including consumers, are properly informed of any potential dangers to human health or the environment, including hazardous physicochemical properties such as flammability or explosivity.


CLP Regulation

CLP (Classification, Labelling and Packaging of Substances and Mixtures Regulation, EC 1272/2008) is the EU legislation concerning classification and labelling of substances and preparations.

The CLP Regulation implements the UN’s Globally Harmonised System (GHS) in EU. CLP replaced the requirements of the Dangerous Substances Directive (67/548/EEC) for classification and labelling of substances in 2010 and the requirements of the Dangerous Preparations Directive (1999/45/EC) in 2015.


In the majority of cases, suppliers need to decide on the classification of a substance or mixture, by collecting, evaluating and reviewing data. In respect of mixtures, rules are established for determining the correct classification of a mixture of classified and non-classified components, based on their individual classifications and the composition of the mixture.

Under REACH, registrants are responsible for proposing classifications, and it is the responsibility of ECHA’s Risk Assessment Committee to review and prepare opinions on the conclusions. A database of classification and labelling information from industry on substances notified and registered under REACH is available. It also includes the list of harmonised classifications. Click here to view the database. For more information see ECHA, EC and HSE.

PFA can offer advice on chemical testing issues, classification of substances and preparations for physico-chemical, human health and environmental hazards. Contact us for more information.

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