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Comparative Study of Two Methods for Olfactory Measurement: Triangular Odor Bag Method and Dynamic Olfactometry

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This report provides a comparative study between the odor measurement method by olfaction,which has been adopted in the Offensive Odor Control Law in Japan and the dynamic olfactometry, which has been standardized in Europe (EN13725:2003). Dilution accuracy, panel selection and measurement results were compared in this study. As a result of the dilution test with three standard odorants, a 46% decrease in the concentration of hydrogen sulfide at a high dilution ratio was observed using the olfactometer, while the Japanese method showed good performance. Among twenty assessors of panel screening tests, eighteen people passed the Japanese test, while only seven passed the European test. In the measurement of three standard odors and six actual source samples, if the panel is the same, the results of both methods corresponded well.

Document Type: Research Article


Publication date: January 1, 2004

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