GB/T 27592-2023 "Reactive Dyes—Determination of Fixation Rate in Pad Dyeing" replaces GB/T 27592-2011. It introduces new term definitions and the colorimetric method for soaping residual liquid, and improves the requirements for test reports. The standard is applicable to the determination of the fixation rate of reactive dyes in pad dyeing. It specifies the use of an ultraviolet-visible spectrophotometer (400-700 nm) for detection, calculates the fixation rate by measuring the amount of dye bound and the total amount applied, and refines the control of parameters such as temperature and pH value to enhance detection accuracy and repeatability.
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 | 2023-03-17 00:00:00 | Implementation Date | 2023-10-01 00:00:00 |
