Operation of an optical particle counter with microprocessor control of particle size
calibration and data recording is described. Sensors are available to measure particles O. 1 …

Manufacturers of particle counters tend to emphasize the areas of their best performance.
For example, one manufacturer might stress sensitivity and counting efficiency and …

USP objective tests for particle contamination in injectable fluids are based on counts of
single particles in a specified test volume. Accuracy standards for these tests must therefore …

Our evaluation of electronic liquid-borne particle counter systems has shown that, for
accurate measurement of particulate matter in injections, the half count values of voltage …

Accurate number concentrations of particles in liquid media are needed to assess the quality
of water, pharmaceuticals, and other liquids, yet there are limited reference materials or …

Summaries are given for recent developments in optical particle counters for liquid-borne
particles. Standards and specifications for particle counter size calibration and counting …

Microscope-based particle analyzing systems detect and characterize particles by means of
focusing and/or imaging optics. Typical specimens analyzed by Such instruments con sist of …

This discussion of optical particle counting (OPC) points out application areas where the
procedure is used to collect data that would not be available otherwise. These areas include …

Subject: 47 OTHER INSTRUMENTATION; PARTICLE SIZE; MEASURING METHODS;
SUSPENSIONS; DATA PROCESSING; ELECTRIC CURRENTS; ELECTRODES; …