PERIODYCS

Laboratory chemicals for scientific use; chemicals for analytic use, except for medical and veterinary use in the nature of chemical substances for analyses in laboratories; chemicals for analytic use, except for medical and veterinary use in the nature of chemical preparations for analyses in laboratories; chemicals for analytic use, except for medical and veterinary use in the nature of reagents for use in scientific apparatus for chemical analysis

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; Mechanical dosing devices for analytic use, namely, dispensers that count or measure output of elemental concentrations of solids, liquids and gases, and not for medical use; Mechanical dosing devices for analytic use, namely, dispensers of preset portions of liquids, solids, and granules for dosing purposes and not for medical use; Mechanical dosing devices for analytic use, namely, chemical separation columns for use in the laboratory; Mechanical dosing devices for analytic use, namely, laboratory columns for chemical separation use