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AATCC EP7-2015
- Instrumental Assessment of the Change in Color of a Test Specimen
- standard by American Association of Textile Chemists and Colorists, 2015
- Publisher: AATCC
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This evaluation procedure is intended as an alternative to the visual method of Evaluation Procedure 1, Gray Scale for Color Change, for assessing the change in color of a test specimen. It is applicable to any test method referring to Gray Scale except those which involve treatment with solutions containing fluorescent whitening agents (FWA).