9 Scientific apparatus and instruments, namely, electronic analyzers for measuring, testing and detecting contaminants in biological and chemical substances; laboratory apparatus and instruments, namely, homogenizers; laboratory apparatus and instruments for analysing liquids in biological and chemical substances; laboratory devices for collecting and preserving biological, chemical or diagnostic samples, namely, pipettes, centrifuges, storage tubes and trays; disposable devices for collecting, preserving and transporting biological and chemical samples and substances, not for medical purposes, namely, pipettes, centrifuges, storage tubes and trays; test tubes for use with media for the preservation and transport of viruses, bacteria and other microorganisms, not for medical purposes; swabs for the collection, preservation and transport of viruses, bacteria and other microorganisms, not for medical purposes; laboratory containers and kits consisting of vials for laboratory use and laboratory storage tubes for transporting and preserving biological, chemical and diagnostic samples, not for medical purposes; laboratory diagnostic testing kits comprised of laboratory swabs, test tubes and contrast media for use with laboratory equipment for the preservation and transport of viruses, bacteria and other microorganisms, not for medical purposes; consumables for use in laboratory analysis, namely, pipette tips; equipment for laboratory analysis and experiments, namely, microscopes; hand-operated laboratory tools for manipulating laboratory samples