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

Scope: This document specifies the methods for evaluating the discoloration grade of samples (according to Appendix A) and the staining grade of standard adjacent fabrics (according to Appendix B) through digital image technology in the color fastness test, and specifies the requirements for the digital image system. This document does not apply to the rating of textiles for color fastness to light tests. Note: In the textile color fastness test described in the ISO105B series of standards, the gray scale card is not used to evaluate the color change of the sample. This document describes the instrumentation, equipment setup and calibration methods for assessing discoloration and staining.

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

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