Mesh mesh and particle size

The particle size of the powder is called particle size. As the particle shape is very complex, usually sieving granularity, sedimentation
Particle size, equivalent volume particle size, equivalent surface area particle size and other representations. Sieve size is the particles can be
The mesh size through the screen is expressed as the number of sieves in a screen with a width of 1 inch (25.4 mm)
And called “mesh”.

At present at home and abroad there is no uniform powder particle size technical standards, each enterprise has its own particle size
Indicator definition and representation. In different countries, different industry sieve specifications have different standards, therefore
The meaning of “head” is also difficult to unify.

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