9 laboratory devices, namely, particle counters and particle size and shape analyzers; laboratory sampling devices, namely, small sample containers for testing dust particle size; specimen dividers, namely, separated sample storage containers specially adapted for scientific laboratory use; parts of laboratory devices, namely, optical sensors and cameras; measuring devices and instruments for determining particle size, namely, optical sensors, cameras; devices for determining and analyzing the size and shape of dust particles; devices for performing particle analysis of powders and granules, namely, particle size and shape analyzers, cameras and microscopes; measuring and monitoring devices for determining particle size distribution, namely, particle size and shape analyzers and imaging cameras; image analysis devices, namely, laboratory instruments that measure particle size, shape of powders and granules; devices for data collection, processing, storing and output, namely, parts of laboratory instruments in the nature of optical sensors, cameras, lights, computer hardware and computer peripherals, specially-adapted vibrators, and specially-adapted sieves, as well as associated data processing software; computer software for controlling and operating laboratory instruments that measure particle size and the shape of powders and granules