EP001-EP1-EP 1 Gray Scale for Color Change

EP001-EP1-EP 1 Gray Scale for Color Change

Description

Untitled

PURCHASED TEST METHODS ARE DELIVERED AS A LINK IN YOUR EMAILED RECEIPT.

 

AATCC EP1-2020 Gray Scale for Color Change

 

Adopted in 1954 by AATCC; under juris- diction of AATCC Committee RA36; re- vised 1979, 1987, 2002, 2012, 2018, 2020; editorially revised 1991, 2009, 2011,  editorially revised and reaffirmed 1992; reaffirmed 2007. Technically equivalent to ISO 105-A02.)

 

1. Scope

 

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.

 

 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.

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