Particle Size Analyzer is used to determine the size of particles. Particles are small in a wide range of sizes.They involve nearly all materials processed in industry,some are broad in size distribution and some are coarse in size itself.This is talking about the concepts of particle size and its measurement.Usually when we are talking about particle size distribution we mean cumulative distribution specifically cumulative undersize particle size distribution such as D10,D50,D90. Among which D90/D10 ratio is very important. In actual industry we usually see dry powders everywhere, however we also can see some particles in other forms such as emulsions, suspensions. When it comes to the error sources of particle size measurement, it involves the following procedures during sampling, dispersion as well as relevant measurement techniques.Some particles are fine, the finess of particles contributes the form and performance of the products. Sometime we also measure gas bubbles in medium, it is a good practice in particle size analysis.Particles are industrially processed from natural products and the knowledge of methods for particle characterization is very important for quality control. Some particle exist in liquid mixtures but under laser diffraction technology we can also give the mean diameter,median diameter.During the test we have to pay attention to the medium we use.Some particles are usually in monodisperse system or we call it monosized.
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