TY - GEN AU - Donnelly, Michelle K AU - Mulholland, George W C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2003-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.6935 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2003 TI - Particle size measurements for spheres with diameters of 50 nm to 400 nm: ER -