GB/T 1866-2012 "Neutral Dyes - Determination of Dyeing Shade and Strength" specifies the methods for determining the dyeing shade and strength of neutral dyes. It is applicable to the quality inspection of relevant dyes, replaces the previous edition, and optimizes the dyeing methods and result evaluation for polyamide fibers. The standard employs both visual and instrumental methods: the visual method compares the sample with a standard sample in a standard light box, while the instrumental method uses a spectrophotometer to measure spectral reflectance, color difference, and strength, in conjunction with a constant-temperature water bath to control the dyeing temperature.
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 | 2012-06-29 00:00:00 | Implementation Date | 2012-12-01 00:00:00 |
