GB/T 27596-2011 "Dyes — Determination of particle fineness — Microscopic method" specifies a method for determining the particle fineness of dyes using a microscope, applicable to the testing of disperse dyes and vat dyes. The principle involves observing the number of large particles with a particle size greater than 2 μm within a specific field of view under a microscope to qualitatively assess the fineness. The testing requires instruments such as a biological microscope with a magnification of at least 600× (equipped with an eyepiece micrometer), an electronic balance, and an electromagnetic stirrer, providing a standardized method for quality control of dye particle morphology.
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 | 2011-12-05 00:00:00 | Implementation Date | 2012-03-01 00:00:00 |
