PURCHASED TEST METHODS ARE DELIVERED AS A LINK IN YOUR EMAILED RECEIPT.
AATCC EP1-2012, Gray Scale for Color Change
Developed in 1954 by AATCC Committee RA36 (revised 2012)
1.1 This evaluation procedure describes the use of a Gray Scale for visually evaluating changes in color of textiles resulting from colorfastness tests. For instrumental assessment of change of color of a test specimen refer to AATCC Evaluation Procedure 7. 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 might have changed, can be compared.
Copyright © 2015 American Association of Textile Chemists and Colorists, RTP, NC, USA. All rights reserved.
The above information is only a summary of the AATCC test method.