GB/T 21782.13-2009 "Powder coatings - Part 13: Particle size analysis by laser diffraction" specifies the method for determining the particle size distribution of powder coatings using laser diffraction. It is applicable to various types of powder coating products. The principle involves utilizing the diffraction signals generated by particles under laser irradiation to calculate the particle size distribution through an optical model. The testing requires instruments such as laser particle size analyzers and sample dispersion devices. This method is characterized by its speed and accuracy, providing data support for the production process control and application performance evaluation of powder coatings.
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 | G50 | ICS | 87.040 |
| Release Date | 2009-06-02 00:00:00 | Implementation Date | 2010-02-01 00:00:00 |
