GB/T 5540-2017
Disperse dyes—Determination of dispersibility—Filter test of double filter papers

GB/T 5540-2017 "Disperse dyes — Determination of dispersibility — Two-layer filter paper filtration method" is applicable for the determination of the dispersibility of disperse dyes. The dye is prepared into a suspension, which is filtered through a two-layer filter paper under specified pressure. The mass of the filter residue is weighed using an analytical balance, and the dispersion effect is evaluated in combination with the transmittance of the filtrate (measured by a spectrophotometer). The method specifies parameters such as suspension concentration, filtration pressure, and time. The dispersibility of the dye is quantified using indicators such as the amount of filter residue and transmittance, making the operation simple and the results intuitive.

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 2017-05-31 00:00:00 Implementation Date 2017-12-01 00:00:00