Scientific instruments, namely, alcohol meters, beverage meters for measuring and analyzing the sugar, CO2, alcohol, and extract content of beverages, CO2 meters, density meters, concentration meters, dynamic-mechanical thermal analysis (DMTA) instruments, high-pressure digestion systems comprised of vessels for the heating and mineralization of samples, microwave digestion systems, namely, microwave reactors for laboratory use, including for performing drying, evaporation, extraction, UV digestion, and/or oxygen combustion, microwave synthesis systems, oxygen meters, polarimeters, refractometers, rheometers for investigating the deformation and flow behavior of liquid and/or solid samples, sugar analyzers, surface analyzers for performing solid surface analysis and analyzing surface chemistry and properties of macroscopic solids, thermometers, tribometers, turbidity meters, viscometers for measuring flow resistance, X-ray structure analyzers, small-angle X-ray scattering (SAXS) systems, X-ray diffraction (XRD) systems, CO2 sensors, density and sound velocity sensors, density sensors, evaluation units for measuring the density and concentration of liquids and gases, and sound velocity sensors; and accompanying computer software, namely, computer operating software sold as a unit with each of the instruments listed above for use in scientific laboratory operations