493 04 | AIR QUALITY MONITORING EQUIPMENT AND ACCESSORIES, LABORATORY, INCLUDING OZONE TYPE |
493 05 | AIRBORNE BACTERIA AND VIRUS INACTIVATION EQUIPMENT, LABORATORY, OZONE TYPE |
493 06 | BATHS, CONSTANT TEMPERATURE, HOT OR COLD , LABORATORY, RECIRCULATING, SHAKING, ETC. |
493 08 | BIOCHEMICAL RESEARCH EQUIPMENT, LABORATORY: DNA SYNTHESIZERS, ENZYME ANALYZERS, RESPIROMETERS, ETC. |
493 09 | CHEMICAL ANALYSIS SYSTEMS, AUTOMATED, LABORATORY: ION-SENSING ELECTRODE, MICRO-KJELDAHL, TITRATION, ETC. |
493 10 | CHEMICAL REACTORS, LABORATORY: HIGH PRESSURE, AUTOCLAVES, CATALYTIC, FLUID-BED, PHOTOCHEMICAL, ETC. |
493 11 | CHROMATOGRAPHS, LABORATORY, GAS |
493 12 | CHROMATOGRAPHS, LABORATORY, LIQUID: HIGH-PERFORMANCE (HPLC), PREPARATIVE, ETC., AND MAJOR ACCESSORIES: ABSORBANCE/FLUORESCENCE DETECTORS AND MONITORS, ETC. |
493 13 | COLLOIDS, LABORATORY: AEROSOLS, EMULSIONS, GELS, SUSPENSIONS, ETC. |
493 14 | COMBUSTION ANALYSIS EQUIPMENT, LABORATORY, AUTOMATIC, FOR CARBON, NITROGEN, SULFUR, ETC. |
493 16 | DENSITOMETERS, LABORATORY, SCANNING, GEL OR PLATE SCANNERS |
493 17 | DEODORIZERS, LABORATORY, CONVECTION TYPE |
493 18 | DEODORIZERS AND ROOM AIR FRESHENERS, LABORATORY, OZONE. PORTABLE |
493 24 | ELECTROPHORESIS EQUIPMENT, LABORATORY: ELECTROFOCUSSING CELLS, GEL DRIERS AND SLICERS, POWER SUPPLIES, ETC. |
493 25 | ENTOMOLOGICAL EQUIPMENT AND ACCESSORIES, LABORATORY, INSECT SCIENCE |
493 30 | EVAPORATORS, LABORATORY, ANALYTICAL, AIR OR NITROGEN JET |
493 32 | EVAPORATORS, LABORATORY, VACUUM: FLASH, ROTATING, ETC. |
493 35 | FLUOROMETERS AND SPECTROFLUOROMETERS, LABORATORY |
493 38 | FREEZE-DRYING AND CRITICAL-POINT DRYING APPARATUS, LABORATORY |
493 42 | GAS ANALYSIS AND MONITORING EQUIPMENT, LABORATORY, FOR CO2 OXYGEN, ETC., IN GAS MIXTURES |
493 44 | GAS GENERATING AND PURIFYING EQUIPMENT, LABORATORY: HYDROGEN, OXYGEN, OZONE, PURE AIR, ETC. |
493 45 | INCUBATORS, LABORATORY, BACTERIOLOGICAL |
493 46 | ION CHROMATOGRAPHS, LABORATORY, INCLUDING PARTS AND ACCESSORIES |
493 48 | ODOR CONTROL EQUIPMENT, LABORATORY, DUCT MOUNT OZONATORS |
493 50 | OSMOMETERS, LABORATORY |
493 52 | PHOTOMETERS, LABORATORY, FLAME |
493 54 | PHOTOMETERS, LABORATORY, PHOTOELECTRIC, COLORIMETERS, TRANSMITTANCE |
493 58 | POLARIMETERS, LABORATORY |
493 60 | POLAROGRAPHS, LABORATORY |
493 62 | SAMPLE COLLECTING, DILUTING AND MULTIPLE DISPENSING APPARATUS, LABORATORY, AUTOMATIC: PIPETTING MACHINES, ETC. |
493 63 | SAMPLE CONCENTRATORS, LABORATORY, FOR MULTIPLE SAMPLES, VACUUM TYPE |
493 64 | SAMPLE PREPARATION SYSTEMS, LABORATORY |
493 69 | SPECTROMETERS, LABORATORY, EMISSION, ARGON PLASMA AND CONVENTIONAL |
493 73 | SPECTROPHOTOMETERS, LABORATORY, ATOMIC ABSORPTION |
493 75 | SPECTROPHOTOMETERS, LABORATORY, INFRARED |
493 77 | SPECTROPHOTOMETERS, LABORATORY, ULTRAVIOLET AND VISIBLE |
493 80 | TENSIOMETERS, LABORATORY, FOR SURFACE TENSION MEASUREMENTS |
493 84 | TISSUE DISRUPTING, GRINDING, AND HOMOGENIZING EQUIPMENT, LABORATORY: FROZEN TISSUE PULVERIZERS, ULTRASONIC CELL DISRUPTERS, ETC. |
493 92 | VACUUM STILL, LABORATORY: SHORT PATH, SPINNING BAND, ETC. |
493 96 | WATER QUALITY MONITORING EQUIPMENT, LABORATORY: BOD ANALYZERS, TURBIDIMETERS, WELL SAMPLERS, ETC. |
493 97 | RECYCLED BIOCHEMISTRY, CHEMISTRY, AND ENVIRONMENTAL SCIENCE EQUIPMENT AND SUPPLIES, LABORATORY |