GB/T 1639-2006 "Soluble Vat Dyes—Determination of Solubility" specifies the method for determining the solubility of soluble vat dyes and is applicable to this type of dye. A dye sample is weighed, dissolved in water at 50°C with constant temperature stirring, and the solubility is determined by observing the dissolution state or measuring the absorbance of the solution. The test requires instruments such as a constant temperature water bath, analytical balance, magnetic stirrer, and spectrophotometer, providing data support for controlling the dosage of dyes in dyeing processes.
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 | 2006-08-01 00:00:00 | Implementation Date | 2007-01-01 00:00:00 |
