Consideration on triangular odor bag method. Rept. 1 Method for environmental odor.
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Reference 2 Measurement of Odor Threshold by Triangular Odor Bag Method
The detection thresholds of odor substances analyzed in field investigations were measured by the triangular odor bag method. The number of substances used for the experiment is 223. The experiment was carried out from 1976 to 1988. As the results of the experiments, the odor thresholds were distributed over the concentration of large range depending on the odor substances. Isoamyl mercaptane e...
متن کاملMeasurement of Odor Threshold by Triangle Odor Bag Method
The detection thresholds of odor substances analyzed in field investigations were measured by the triangle odor bag method. The number of substances used for the experiment is 223. The experiment was carried out from 1976 to 1988. As the results of the experiments, the odor thresholds were distributed over the concentration of large range depending on the odor substances. Isoamyl mercaptane exh...
متن کاملDifference in the odor concentrations measured by the triangle odor bag method and dynamic olfactometry.
'The triangle odor bag method', which has been adopted for the offensive odor control law in Japan, and the dynamic olfactometry defined by EN 13725 have been compared. The odor concentration measured by the triangle odor bag method tends to be higher than that of the dynamic olfactometry in the forced choice mode, while well agreed in the Yes/No mode olfactometry when the panel is the same. Th...
متن کاملPsychometrics of odor quality discrimination: method for threshold determination.
There is no natural physical continuum for odor quality along which an odor quality discrimination (OQD) threshold can be measured. In an attempt to overcome this problem, the substitution-reciprocity (SURE) method defines a framework for the measurement of an OQD threshold. More specifically, it (i) defines a threshold concept for OQD, including the quantification of qualitative change of the ...
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Dental anxiety is defined as an abnormal fearing or dread toward preventive or therapeutic visits by a dentist and unreasonable anxiety against dental procedures. It is estimated that dental anxiety affects one-third of the general population. Its physical and cognitive symptoms may result in behavioral issues such as avoidance of early dental visits that troubles both patient and dentist. In o...
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ژورنال
عنوان ژورنال: Journal of Environmental Conservation Engineering
سال: 1986
ISSN: 1882-8590,0388-9459
DOI: 10.5956/jriet.15.956