สิ่งทอและเส้นใย
เอกสารมาตรฐาน
สหรัฐอเมริกา
AATCC
EP2
Gray Scale for Staining
2020 (2022)
3
Offline
This evaluation procedure describes the use of a Gray Scale for visually evaluating colorant staining on a control material, resulting from colorfastness tests of a colored textile. To determine if a Gray Scale is still suitable for use, see Appendix A. Staining due to any colorfastness test may be evaluated.