ABSTRACT
Micromeritics is the study of the science and technology of small particles (1); this
includes the characterization of important properties such as particle size, size dis-
tribution, shape, and many other properties. All dosage forms from parenterals to tablets
at some point in their manufacture involve particle technology and the performance of
these dosage forms is much dependent upon the particle size of the drug and excipients.
Given the central role played by the particle properties in tablet production, this chapter is
devoted to the subject of characterizing particle properties; other chapters will examine
the physical and rheological properties of particles in powder beds and tablet production.