AATCC Evaluation Procedure 2-2007

Gray Scale for Staining

Developed in 1954 by AATCC Committee RA36

1.  Scope

1.1  This evaluation procedure describes the use of the Gray Scale for evaluating staining of unstained textiles resulting from colorfastness 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 been changed, can be compared.

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