Olfactometry | Odor Sampling

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:

  • For point or channelized sources, sampling is conducted using a lung or a pump and a glass or stainless steel rotameter.
  • 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.
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    Our laboratories are equipped with ODILE™ dynamic dilution olfactometers which allow objective quantification of odors.

    The following services are available:

  • olfactometric analyses with a factor of dilution up to 2,000,000
  • odor concentration measurements as per Standards EN 13725, ASTM E679-04, CUM, Probit and Logarithmic regression
  • hedonic tone analyses
  • odor intensity analyses
  • juried perception thresholds
  • jury certification as per Standard EN 13725
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    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.

    November 21, 2011
    odotech

    Odor intensity using olfactometric analysis

    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.
    October 31, 2011
    odotech

    Odor Impact Assessment

    Odor Impact Studies Applications: Verification of facility compliance with current regulations Estimation of level of abatement required to eliminate odor problem Knowledge required to identify and […]
    March 16, 2011
    odotech

    Does Odor Measurement is Subjective or Based on Science?

    Odor measurement is, as a matter of fact, a dose-response relationship evaluation of an odorant substance. The dose-response relationships are commonly used in pharmacology, toxicology, biology and medical science. No one would think that these sciences are subjective. Olfactometry (odor measurement) is based on the same sound science.
    March 8, 2011
    odotech

    Electronic Nose Vs Olfactometry

    Olfactometry is a great tool to translate into a quantitative and objective value the complexity of odor perception (see blog: Are odors additives in terms of the […]
    February 10, 2011
    odotech

    How to Reduce Landfill Biogas Emissions

    Numerous landfill operators have used this approach to optimize greatly their biogas collection system, generate more revenue by collecting more biogas at higher quality, minimize odors in the community and secure permitting approvals.