"Laser diffraction to determine particle size"

Particle size distribution is determined in almost all chemical substance groups handled by Lehmann & Voss & Co.
This method is used to characterize blowing agents, magnesium oxides, raw materials, celite etc. The substances are normally available in powder form.

Fundamentals - Laser diffraction

Laser diffraction is used to determine particle size distribution in samples. This leads to radial symmetric diffraction patterns. The position and intensity of the diffraction patterns correlate with the size of the particles examined. The sum distribution Q shows the percentage of particles of a specific size: