9 Automatic liquid-flow control machines and instruments; Automatic liquid-level control machines and instruments; Bioreactors for cell culturing for scientific research; Bioreactors for laboratory use; Chromatography apparatus for laboratory use; Electrolysis apparatus for laboratory use; Electronic apparatus for testing the sterility of pharmaceuticals and injectable solutions; Electronic apparatus for use in the treatment of aqueous systems, namely, for analysis of the system conditions for the purpose of applying the appropriate chemical treatment; Fermentation apparatus for laboratory use; Filling level detectors; Flow meters; Laboratory robots; Pharmaceutical and scientific research equipment for use in mass spectrometers; Precision balances; Teaching robots; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; Weighing machines