The Particle Measurement Research Group studies the measurement of particles and polymers.

Particles, powders, and polymeric materials have been widely used in the development of advanced materials, medical services, and general commodities. Some of these particles are found in the environment, for example, in the form of PM2.5. To facilitate accurate and precise measurement of particle properties, including particle size, this group provides standards of particles and polymers, including some at the nanometer scale.

In addition, this group develops technologies to measure particle properties with high precision as well as new reference materials and calibration techniques and conducts international standardization activities including contribution to ISO standards.