9 Apparatuses for micrometering, micrometering installations and equipment, in particular for the metering of adhesive materials, gases, inks, aromas, materials for printing Braille letters, greasing and minimum quantity lubrication with oils, mixing various media of differing viscosity, printing on edgings, metering essences and aromas, metering for UV-curing inks and blue carbon, metering for raised printing, metering for fraction collectors, biological screening, research services in the field of cells, analytical techniques, research and development; printers for computers