| 摘要 |
A residual chlorine measurement kit is provided to allow the user to measure the residual chlorine in sample liquid easily by comparing the color of chromogenic cloth dipped in the sample liquid with the color contrastive table. A residual chlorine measurement kit comprises a strip(10), chromogenic cloth which is attached underneath an exposure hole formed on one side of the strip and in which chromogenic agent discoloring by reaction to the chlorine remaining in the sample liquid is impregnated, and a color contrastive table(30) which is attached to the strip in order to align the exposure hole and a confirmation window(31) formed in the center and in which contrast colors(32) and each density value(33) are indicated. The brightness of the contrast colors decreases and the density vale increases in the clockwise direction around the confirmation window.
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