Micromeritics refers to the science and technology of small particles. It deals with particle size, size distribution, shape, surface area, and pore size. Knowledge of these properties is important in pharmacy because particle size affects drug release from dosage forms and stability of suspensions, emulsions, and tablets. It also influences flow properties and uniformity of drug fill in tablets and capsules. Smaller particle sizes increase dissolution and absorption rates for some drugs. Common methods to determine particle size include sieving, sedimentation, light scattering, and electrical sensing using a Coulter Counter.