Uni・spheres™ are spherical polystyrene latex particles with excellent particle size uniformity for use in calibration of particle size analyzers, accuracy control, and validation of particle size measurement methods.
It is performed using the calibration service (commissioned test system) of the National Institute of Lightweight Standards (NMIJ) of the National Institute of Advanced Industrial Science and Technology (AIST) for particle sizing using the absolute EAB method and is traceable to the SI international system of units.