AATCC EP1-2007
- Gray Scale for Color Change - Instructions
- standard by American Association of Textile Chemists and Coloris
- Category: AATCC
$64.00
$32.00
This evaluation procedure describesthe use of a Gray Scale for visually evaluatingchanges in color of textiles resultingfrom colorfastness tests. For instrumentalassessment of change of color of a testspecimen refer to AATCC Evaluation Procedure7. A precise colorimetric specificationof the differences between the referenceand the 9-step Scale is given as apermanent record against which newlyprepared Gray Scales, and old scales thatmight have changed, can be compared.
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