GB/T 39648-2020: Textiles - Tests for colour fastness - Determination of colour fastness grades by digital imaging techniques

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Scope

This Standard specifies the methods for evaluating the discoloration grade of the
specimen (according to Annex A) and the evaluation of the staining grade of the
standard backing fabric (according to Annex B) by digital imaging techniques in the
color fastness test. It also specifies the requirements of digital imaging system.
This Standard does not apply to the grading of light fastness tests of textiles.
NOTE: In the color fastness test of textiles described in the ISO 105B series of standards, the gray
sample card is not used for the discoloration assessment of the specimen.
This Standard describes the apparatus, equipment settings and calibration methods for
assessing discoloration and staining.

Basic Data

Standard ID	GB/T 39648-2020 (GB/T39648-2020)
Description (Translated English)	Textiles - Tests for colour fastness - Determination of colour fastness grades by digital imaging techniques
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	W04
Classification of International Standard	59.080.01
Word Count Estimation	16,198
Date of Issue	2020-12-14
Date of Implementation	2021-07-01
Quoted Standard	GB/T 6151; CIE S 012/E; CIE 13.3-1995
Adopted Standard	ISO 105-A11-2012, MOD
Regulation (derived from)	National Standard Announcement No. 28 of 2020
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration
Summary	This standard specifies the method for evaluating the color fastness test of the sample by digital image technology (according to Appendix A) and standard lining fabric staining level evaluation (according to Appendix B), and specifies the requirements of the digital image system. This standard does not apply to the grading of textiles' light fastness test. This standard describes the equipment, equipment settings and calibration methods for evaluating discoloration and staining.