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Gray Scale for Color Change
AATCC Evaluation Procedure 1 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.
AATCC Evaluation Procedure 9: 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.
Remark:
The requirements of AATCC 1 are essentially equivalent to those of ISO 105-A02
Gray Scale for Staining
AATCC Evaluation Procedure 2: This evaluation
procedure describes the use of the Gray Scale for evaluating staining of
textiles resulting from colorfastness tests.
AATCC Evaluation Procedure 9: 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.
Remark:
The requirements of AATCC 2 are essentially equivalent to those of ISO 105-A03
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