Apparatus and instruments for weighing; Beakers; Disposable reusable dispenser syringes for laboratory use; Eye glasses; Hand-operated laboratory tools for manipulating laboratory samples; Laboratory apparatus, namely, centrifuges; Laboratory equipment and supplies, namely, centrifuge tubes; Laboratory equipment and supplies, namely, test tubes; Laboratory equipment, namely, pipette racks; Laboratory equipment, namely, plastic, rubber and elastomer closures, seals and stoppers for laboratory bottles; Magnetic agitators for laboratory use; Magnifying glasses; Medical teaching mannequins; Microscopes and parts thereof; Protection masks; Protective clothing especially made for use in laboratories; Refractometers; Scientific instrumentation for measuring concentrations of chemicals in water; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; Thermometers not for medical purposes