COLORIMETRIC METHOD FOR MINUTE SAMPLE AND COLORIMETRY USE JIG USED FOR SAID METHOD

摘要

PURPOSE:To execute the colorimetry for a minute sample, and also, to obtain a colorimetric effect with high accuracy by using a colorimetric use jig provided with two kinds of colorimetric light cutting-off means. CONSTITUTION:One piece of thread body 6 is inserted in a racked state between a pair of right and left sample fixing members 5, 5 from the upper part of both the members 5, 5, and inserted and held by energizing at a roughly intermediate position of a colorimetric window 2. Subsequently, the arm of a colorimetric light cutting-off means 7a is turned in the direction as indicated with an arrow X, and in a state that a plate body 8a is abutted on the colorimetric window 2, a regular colorimetry is executed. After executing such colorimetry, the colorimetric light cutting-off means 7a is returned to the original position and the cut-off is released, and thereafter, the other colorimetric light cutting-off means 7b is allowed to abut on the colorimetric window, and the colorimetry is executed by cutting off the colorimetric light by the same operation. Subsequently, by calculating a colorimetric value of only a sample from two colorimetric values which are obtained, and colorimetric values of the respective working surfaces of two kinds of colorimetric light cutting-off means 7a, 7b, the colorimetry of a minute sample can be executed efficiently and exactly.