9 Testing and quality control devices, namely, technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; laboratory devices and instruments for elemental analysis, namely, liquid analyzers; Laboratory devices and instruments for elemental analysis, namely, air analysis apparatus; Laboratory devices and instruments for elemental analysis, namely, apparatus for analyzing gases; Laboratory devices and instruments for elemental analysis, namely, electronic analyzers for testing and analyzing chemical substances for the presence, absence, or quantity of target chemicals, or contaminants; Laboratory devices and instruments for elemental analysis, namely, elemental analyzers, Total Organic Carbon analyzers, protein analyzers, stable isotope analyzers and optical emission spectrometers for the determination of chemical elements; testing apparatus, namely, apparatus for testing gas, liquids and solids, not for medical purposes; physical analyzing apparatus, namely, analytical instruments and elemental analyzers for the determination of Carbon, Hydrogen, Nitrogen, Oxygen, Sulfur, and Chlorine, other than for medical use; photometric analyzers, namely, spectroscopy analytical device, except for medical use; chromatogram analyzers for scientific or laboratory use, namely, apparatus for automatic chromatography for laboratory use; photo electron spectroscopy analyzers not for medical purposes; apparatus for analyzing gases.