Gray Ruler JIS evaluates gradation and color change

Model: Gray Ruler

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Gray scale assesses color change according to Japanese standard JIS L 0804 and gray scale evaluates color change according to JIS L 0805 standard

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JIS L0804 Grey scale for change in color

The gray scale consists of nine pairs of neutral grays without shadows, representing color differences. These ratings give 5, 4-5, 4, 3-4, 3, 2-3, 2, 1-2 and 1 endurance levels, respectively.
They are used in the assessment of color changes occurring in color fastness tests in the Japanese standard JIS L 0804.

JIS L 0805 Grey scale for staning

The gray scale consists of nine pairs of gray and white without shadows, illustrating the perceived depth of color. These give a durability level of 5, 4-5, 4, 3-4, 3, 2-3, 2, 1-2, 1 respectively.
They are used to evaluate the amount of staining that occurs on adjacent undyed fabrics in color fastness tests according to Japan's own standard JIS L 0805

Code Gray Ruler JIS L

660107	Gray Scale for Color Change	gray humor assessment of standard color change JIS L 0804
660108	Grey Scale for Staining	JIS L 0805 . standard color grading gray scale

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