What is particle size analysis?
helpful for the analysis of particles
The method of particle size analysis determines – as the name suggests – the size of grains, or particles, in a mixture. There are several methods that make it possible to determine the particle size. The following page is intended to provide information about the topic and how the method is used in industry.
How does grain size determination work?
The determination of grain sizes can be done by several methods. Basically, a construct called equivalent diameter is used for the analysis. The equivalent diameter assumes that the determinable property (in this case the diameter) is reflected in the form of spheres of equal size. Determinable means that the particles that pass through a sieve have the diameter of the diagonal of the sieve hole.
The choice of the particle size procedure method depends on the size of the particles. Large particles (from 63 mm diameter) are measured by hand, small particle sizes (10 µm) are determined by sieving. If the size ranges become smaller, methods that are technically more demanding, such as laser diffraction or dynamic light scattering, have to be considered.
These advantages bring data about particle sizes
Information about the grain sizes of a batch provides insight into material properties. These properties are important for technical and scientific use.
How is particle size analysis used in industry?
The grain size analysis method is used in industry to test quality. At incoming and outgoing goods, particle sizes are determined to determine the suitability of the material for further production steps.
For example, in the construction industry it is indispensable to check all types of bulk material. If size specifications are not met, weak points may occur, for example in the foundation.