GB/T 27594-2025 "Disperse dyes - Determination of relative strength - Spectrophotometric method" specifies the method for determining the relative strength of disperse dyes using spectrophotometry, which is applicable to disperse dyes conforming to the Lambert-Beer law. The principle involves dissolving the dye sample and the standard sample with a specific solvent, measuring the absorbance at the maximum absorption wavelength, and calculating the relative strength in combination with concentration. It also clarifies the calculation methods for the relative strength of dry and moist products, as well as the permissible error for parallel determinations, providing standardized procedures for the strength testing of disperse dyes.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Incoming | ||
|---|---|---|---|
| CCS | G55 | ICS | 71.100.01;87.060.10 |
| Release Date | 2025-10-05 00:00:00 | Implementation Date | 2026-05-01 00:00:00 |
