This European standard specifies a test method for the determination of emissions resulting from the use of combustible air fresheners into indoor air by means of chamber operation according to EN ISO 16000-9.This standard defines specific testing conditions for the measurement of the emissions from combustible air fresheners which minimize the effect of the testing on the combustion process.This standard provides a measurement method for the determination of the following non-exhaustive list of target substances emitted directly from the burning process:— VOC; — Benzene; — Naphthalene; — Formaldehyde.The measurement method can allow the determination of other substances.This standard provides additional information on the optional measurement of the following substances:— SO2; — NOx; — CO.This standard is not suitable for the quantitative determination of particulate matter.This standard does not apply to non-combustible air fresheners and loose incenses.Any scented candle with burning time shorter than 2,5 h is outside the scope of the standard.