Particle size distribution, Particle size measurement, Particulate materials, Light divergence, Optical measurement, Test equipment, Liquids, Suspensions (chemical), Counting, Calibration, Verification, Contaminants

Particle size distribution, Particle size measurement, Particulate materials, Light divergence, Optical measurement, Test equipment, Liquids, Suspensions (chemical), Counting, Calibration, Verification, Contaminants

Clean rooms, Light divergence, Particle size distribution, Air pollution, Test equipment, Calibration, Particulate air pollutants, Verification, Particle size measurement, Counting, Contaminants, Particulate materials, Optical measurement, Air

Particle characterization is an important component in product research and development, manufacture, and quality control of particulate materials and an important tool in the frontier of sciences, such as in biotechnology and nanotechnology. This book systematically describes one major branch of modern particle characterization technology - the light scattering methods. This is the first monograph in particle science and technology covering the principles, instrumentation, data interpretation, applications, and latest experimental development in laser diffraction, optical particle counting, photon correlation spectroscopy, and electrophoretic light scattering. In addition, a summary of all major particle sizing and other characterization methods, basic statistics and sample preparation techniques used in particle characterization, as well as almost 500 latest references are provided. The book is a must for industrial users of light scattering techniques characterizing a variety of particulate systems and for undergraduate or graduate students who want to learn how to use light scattering to study particular materials, in chemical engineering, material sciences, physical chemistry and other related fields.

Monitoring particle contamination levels is required in various fields, e.g. the electronics and pharmaceutical industries, and in the manufacturing of precision machines and in medical operations. Particle counters are useful instruments for monitoring particle contamination in the air. The purpose of this part of ISO 21501 is to provide a calibration procedure and verification method for particle counters, so as to minimize the inaccuracy in the measurement result by a counter, as well as the differences in the results by different instruments.