GB/T 33421-2016 "Liquid Acid Dyes — Determination of Shade and Strength" is applicable to the performance testing of liquid acid dyes, using the dyeing method. Dyes are formulated into dye solutions at specified concentrations and applied to wool fabric according to set dyeing processes. The color difference of the dyed fabric is measured using a spectrophotometer to evaluate the shade, and the strength is calculated by comparison with a standard sample. Parameters such as dyeing temperature and bath ratio are clearly defined, providing a unified method for product quality control.
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 | 71.100.01;87.060.10 |
| Release Date | 2016-12-30 00:00:00 | Implementation Date | 2017-07-01 00:00:00 |
