GB/T 23980-2009 "Direct dyes—Determination of dischargeability" specifies the test method for determining the dischargeability of direct dyes, applicable to various direct dye products. The test involves performing a discharge treatment on dyed fabric, comparing the color change of the fabric before and after treatment to evaluate the discharge effect. The detection requires instruments such as dyeing equipment, discharge agents, constant-temperature ovens, and colorimeters, providing a unified standard for assessing the dischargeability of direct dyes.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G55 | ICS | 87.060.10;71.100.01 |
| Release Date | 2009-06-02 00:00:00 | Implementation Date | 2010-02-01 00:00:00 |
