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Original Articles

Appraisal of Odor-Measurement Techniques

Pages 472-474 | Published online: 16 Mar 2012
 

Abstract

All odor measurement methods may be conveniently grouped into three categories: (1) threshold; (2) suprathreshold; and (3) analytical. The threshold techniques include such methods as syringe dilution, scentometer, and osmoscope. Suprathreshold techniques include direct comparison methods and dilution methods involving subjective ratings of preference as opposed to intensity. Analytical techniques involve the use of physicochemrcal methods, e.g., for monitoring of process streams or identification of individual odorants. The relative advantages and disadvantages of each method, as presently used, are discussed. Recommended applications for the various methods and suggested modifications are also presented.

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