The task of setting a particle size

The task of setting a particle size specification for a material requires knowledgeof which technique will be used for the analysis and how size affects productperformance. Sources of error must be investigated and incorporated into the finalspecification. Be aware that, in general, different particle sizing techniques willproduce different results for a variety of reasons including: the physical propertybeing measured, the algorithm used, the basis of the distribution (number,volume, etc.) and the dynamic range of the instrument. Therefore, a specificationbased on using laser diffraction is not easily compared to expectations from othertechniques such as particle counting or sieving. One exception to this rule is theability of dymanic image analysis to match sieve results