U.S. Pharmacopeial Convention for Micromeritics and Particulate Systems Instruments:
USP <267>Â Porosimetry for Mercury Intrusion
USP <429>Â Laser Diffraction Method of Particle Size
USP <699> Density of Solids – Gas Pycnometry
USP <788>Â Particulate Matter in Injections
USP <789>Â Particulate Matter in Ophthalmic Solutions
USP <846>Â Specific Surface Area
USP <1241>Water Solid Interactions in pharmaceutical Systems