Odor intensity using olfactometric analysis.
Posted by Veronique Cadieux on Mon, Nov 21, 2011 @ 02:49 PM
Olfactory emissions are determined by sampling and analysis of the emissions of odorific sources. This involves sampling the gas emitted according to a recognized sampling protocol suitable for the type of source, followed by a determination of the odor intensity using olfactometric analysis.
Two types of sampling may be conducted:
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For point or channelized sources, sampling is conducted using a lung or a pump and a glass or stainless steel rotameter.
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For surface sources such as compost winrows or settling ponds, the odor samples are taken by means of the OdoFlux™ dynamic flow chamber. This permits us to quantify the gas emitted at the soil/air or water/air interface. This technique allows us to sample the gas actually emitted by a surface source without disturbing its natural surface flow.
Our laboratories are equipped with ODILE™ dynamic dilution olfactometers which allow objective quantification of odors.
The following services are available:
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olfactometric analyses with a factor of dilution up to 2,000,000
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odor concentration measurements as per Standards EN 13725, ASTM E679-04, CUM, Probit and Logarithmic regression
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hedonic tone analyses
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odor intensity analyses
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juried perception thresholds
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jury certification as per Standard EN 13725
In addition to odor concentration measurements, our laboratories can carry out odor intensity measurements, and investigations of odor synergies and hedonic tone.
With a significant number of juries certified in compliance with European Standard EN 13725 as well as juries that have received preliminary authentication based on ASTM Standard E679-04, we are ready to conduct your analyses in the shortest possible timeframe.
