A STUDY ON THE DETERMINATION OF ODOR RECOGNITION THRESHOLD VALUES OF N-AMYL AND ISO-AMYL (PENTYL) ACETATES USING TEDLAR BAG STATIC METHODS

The determination of odor recognition threshold values of n- and iso-a myl (pentyl) acetates was carried out by odor panel test (Japanese stu dents 18-22 years old;6 males and a female) using 10-liter Tedlar bag static method. The trace concentrations of n- and iso-amyl acetates in the Tedlar bag were determined by gas chromatography and an odor sens or (SnO2 type). The odor recognition threshold values of amyl acetates were 7.70 ppm for n-amyl and 1.50 ppm for iso-amyl. The odor quality from several odor panels were evaluated, such as a binder solvent-like , aqueous paint, stimuli, fruity, aromatic, ether-like, gasoline-like, pungent, minty, sour, petroleum-like, respectively.