For some materials, determination of the mean and standard deviation of the particle size of a sample may not be sufficient. The presence of even a small amount of large or agglomerated particles can affect the product's performance. For example, many problems are encountered in materials such as abrasives, pigments, blood, inks, toners, and explosives when large or agglomerated particles go undetected.
The electrozone sensing method measures the size
and number of particles that pass through an orifice.
It is one of only a few techniques that can determine
with accuracy the presence and amount of
large or agglomerated particles. Other methods include
microscopy and sieves, but both are very
time-consuming. The Elzone employs the electrozone
sensing method and can report data either as
population (comparable to data from a microscope)
or volume (comparable to sieve data).
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