This European Standard specifies a column switching gas chromatographic method for the quantitative determination of benzene content in the range 0,05% (V/V) to 6% (V/V) in unleaded petrol having a final boiling point not greater than 220°C. The method described in this standard is suitable for determining benzene in petrol, including petrol containing oxygenates, in line with the relevant EC Directives. Warning: The use of this standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use.