BS EN 13725:2003

What is this standard about?

This European Standard specifies a method for the objective determination of the odour concentration of a gaseous sample using dynamic olfactometry with human assessors and the emission rate of odours emanating from point sources, area sources with outward flow and area sources without outward flow. The primary application is to provide a common basis for evaluation of odour emissions in the member states of the European Union.

The field of application of this European Standard includes:

• the measurement of the mass concentration at the detection threshold of pure odorous substances in g/m3 ;
• the measurement of the odour concentration of mixtures of odorants in ouE/m3 ;
• the measurement of the emission rate of odorous emissions from point sources and surface sources (with and without an outward flow), including pre-dilution during sampling;
• the sampling of odorants from emissions of high humidity and temperature (up to 200 °C);
• the determination of effectiveness of end-of-pipe devices used to reduce odour emissions.