| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of measuring color degree of flake-like resorcine having superior effect of practicing the method of measuring color degree of flake-like resorcine in an extremely simple manner. Ž<P>SOLUTION: In the method of measuring color degree of flake-like resorcine, a b<SP>*</SP>value of the surface of the flake-like resorcine is measured by a colorimeter. For example, about 2 g of the flake-like resorcine is fully put into a cell to be attached to the colorimeter while shaking it so that the space is reduced. Thereafter, the cell is set at a prescribed position of the colorimeter, and a measurement button is pressed so that the color difference (color degree) is indicated. The b<SP>*</SP>value is obtained by numerizing hue, which is an index expressing that it looks like yellowish as the + value thereof is larger, and in contrast, it looks like bluish as the - value thereof is larger. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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