Particle size analysis falls into two categories: Ultimate and physical. Physical particles are those we can measure using ordinary sieves. Ultimate particles, in the micron range, require the use of specialized devices.
The size in microns of the average particle of a powder sample
|Tests||Median Particle Size (Microns)|
|Tests||Sieve Analysis 35-325 Wet|
|Tests||% < 1 micron|
|Tests||% < 2 microns|
|Tests||% < 10 microns|
|Tests||% < 20 microns|
|Tests||Ultimate Particle Size Distribution|
|Tests||% < 0.5 microns|
|Tests||Sieve Analysis Dry|
Utlimate particles of ceramic materials are finer than can be measured even on a 325 mesh screen. These particles are the key players in the physical presence of the material.
Tests conducted to determine particle populations, sizes, shapes, densities, surface areas, etc.