Polystyrene Particle Size Standards

CD Bioparticles has introduced a new line of polystyrene particle size standards, designed for biomedical research and bioassay development. These particles, with diameters ranging from 40 to 175 micrometers, are available as aqueous suspensions in 15 mL dropper bottles for convenient handling and dilution. For larger sizes, 200 to 1000 micrometers, dry pellets are offered. These particle size standards are precision engineered to ensure homogeneity and repeatability and are ideal for use in sizer calibration and validation, research, and a variety of industrial applications.

For example, DiagPoly™ Polystyrene/DVB Particles, NIST Standard, 1000 μm (Cat. No. DNT-TD1000) are suitable for use in performing routine instrument calibration checks and corrections. These NIST traceable size standards particles, composed of polystyrene crosslinked with divinylbenzene (PS/DVB), are meticulously measured on in-house instruments calibrated with NIST standard reference materials. With a size of 1000 μm, these dry powder particles provide a reliable and consistent reference for routine instrument checks.