Question

Difference between differential and cumulative analysis

Answer 1

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Differential or Distinctive particle size dispensation is the percentage of particles from the total that is within an instance size range; for example, 30% within 1-10um range, 50% within 10-20um range, and 20% within 20-30um range.
 
Progressive or cumulative particle size distribution is the sum of the differential distributions. The cumulative distribution is acquired by the collection of differential distribution, for instance, 80% of the particles are smaller than 20um.