Particle sizing is the process of determining the size distribution of particles in a sample. This is important in various fields, such as pharmaceuticals, food production, and materials science, as the size of particles can affect the properties and behavior of a product. Techniques for particle sizing include sieve analysis, laser diffraction, and dynamic light scattering. Accurate particle sizing helps in quality control and product development. For instance, in the pharmaceutical industry, the size of drug particles can influence their absorption and effectiveness. Understanding particle size can also aid in optimizing processes like mixing and coating, ensuring consistent product performance.