The odour concentration of a gaseous sample is determined by presentation to a panel of observers, with known acuity to odour, in varying dilutions. The odour concentration is then expressed in multiples of one European Odour Unit (ouE). This analysis technique provides directly comparable data for different odour types, and used for input into dispersion models to determine odour impact in terms of annoyance and abatement efficiency assessments.

Analysis is conducted in full accordance with the standard for olfactometry CEN EN13725:2003 in Odournet’s in-house laboratories. Analysis services are provided for samples collected by Odournet consultants, and samples collected by clients.

Arrangement of third party courier services for delivery of sample bags and collection of samples, for analysis within the 30 hours time limit as specified by CEN EN 13725:2003, are also provided where required.


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