Abstract
In order to evaluate odor, the measurement method by olfaction is in common use. The various scales have been used for the odor sensory evaluation, for example, the intensity scale of Ministry of the Environment, one use by Yaglou, and one used by P.O.Fanger. These scales, however, have been used without any verification that these are interval scales or ordinal scales or neither of them. In this study, 8 kinds of intensity scales and 3 kinds of hedonics scales are discussed. Consequently the psychological distance between words for rating each scale and the difference between scales are made clear.