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Description of key information

According to REACH Annex XI, 1 a study on flammability is scientifically unjustified, as the classification and labelling criteria for flammability of a liquid is determined by the flash point (Guidance on information requirements and chemical safety assessment. Chapter 7a: Endpoint specific guidance, 7.1.10). The substance is not pyrophoric and is not flammable in contact with water.

Key value for chemical safety assessment

non flammable

Additional information

Justification for classification or non-classification

According to Directive 67/548 EEC as well as GHS Regulation EC No 1272/2008, styrene oxide does not need to be classified with regard to this endpoint and labelling is not required.