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[INDUSTRY] Guidance on the application of Globally Harmonized System (GHS) criteria to petroleum substances

This guidance was developed by IPIECA to facilitate appropriate classification and labelling of petroleum substances within the Unknown or Variable Composition, Complex Reaction Products or Biological Materials (UVCB) group. It was developed with input from experienced technical experts in petroleum substance toxicology and addresses crude oil and petroleum substances produced from oil and gas operations. The guidance includes a Technical Support Document where the principles of the guidance are explained using relevant scientific literature.