ISO Grey Scale
Responsing Time:1 Working Days
Payment Terms:T/T, L/C
ISO grey scale is to assess changes in color and staining in color after materials tested by rubbing, washing, abrasion and other testing methods of colorfastness. The grey scale includes half steps of grading.
|Model one||ISO grey scale for assessing change in color|
|Model two||ISO grey scale for assessing staining|