Olfactometer

Overview

A device that is used to determine odour concentration, odour intensity and hedonic tone. This is achieved by diluting the odour sample with odour-neutral air, which is then presented to a panel. The dilutions may be done by volume or flow-rate and are referred to as a static olfactometer or dynamic olfactometer respectively.

The device may be a mobile unit or permanently in place. It is important to note that the olfactometer should be in an odour free environment so as to not to interfere with measurements. Materials used in an olfactometer must be an odour neutral substance such as stainless steel or PTFE.

Olfactometer Range

According to the EN13725, the range of an olfactometer shall be less than 2⁷ to at least 2¹⁴, with a range of 2¹³.  The presentation of diluted air (neutral gas and odour sample) is to be at least 20l/min.

A full list of Scentroid olfactometers can be found here.