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inorganic chemicals and chemical standards, standards for general industrial and laboratory use

[ measuring and scientific instruments, spectrometers and parts therefor, spectrographs, spectrophotometers, phosphorimeters, colorimeters, monochromators, spectrofluorometers and parts therefor, controllers and parts therefor, and microprocessor data-processors for spectrometric instrumentation; laboratory equipment, presses and grinders for preparing materials for spectrometric analysis ]