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AATCC EP2-2012
- Gray Scale for Staining
- standard by American Association of Textile Chemists and Colorists, 2012
- Publisher: AATCC
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This evaluation procedure describes the use of the Gray Scale for evaluating staining of textiles resulting fromcolorfastness tests. A precise colorimetric specification of the differences between the reference and the 9-step Scale is given as a permanent record against which newly prepared Gray Scales, and old Scales that may have changed, can be compared.