Establishments primarily engaged in manufacturing laboratory instruments and instrumentation systems for chemical or physical analysis of the composition or concentration of samples of solid, fluid, gaseous, or composite material. Establishments primarily engaged in manufacturing instruments for monitoring and analyzing continuous samples from medical patients are classified in Industry 3845, and from industrial process streams are classified in Industry 3823.
| Amino acid analyzers, laboratory type | Nephelometers, except meteorological |
| Automatic chemical analyzers, laboratory type | Neutron activation analysis instruments |
| Chromatographic instruments, laboratory type | Osmometers |
| Colorimeters, laboratory type | Particle size analyzers |
| Coulometric analyzers, laboratory type | Photometers, except photographic exposure meters |
| Densitometers, analytical | Polariscopes |
| Differential thermal analysis instruments | Polarizers |
| Electrolytic conductivity instruments, laboratory type | Polarographic equipment |
| Electron paramagnetic spin type apparatus | Protein analyzers, laboratory type |
| Electrophoresis instruments | Redox (oxidation-reduction potential) instruments |
| Elemental analyzers (CHNOS) | Refractometers, laboratory |
| Flame photometers | Specific ion measuring instruments, laboratory type |
| Gas analyzers, laboratory type | Spectrofluorometers |
| Gas chromatographic instruments, laboratory type | Spectrographs |
| Infrared type analytical instruments, laboratory type | Spectrometers: electron diffraction, mass, nmr, raman, x-ray |
| Liquid chromatographic instruments, laboratory type | Spectrophotometers: atomic absorption, atomic emission, flame, flame, fluorescence, infrared, raman, visible, ultraviolet |
| Magnetic resonance imaging type apparatus, except diagnostic | Surface area analyzers |
| Mass spectrometers | Thermal analysis instruments, laboratory type |
| Mass spectroscopy instrumentation | Thermal conductivity instruments and sensors |
| Microprobes: electron, ion, laser, X-ray | Thermogravimetric analyzers |
| Microscopes, electron and proton | Titrimeters |
| Moisture analyzers, laboratory type | Turbidometers |
| Monochrometers, laboratory type | Ultraviolet-type analytical instruments |
| Codes |
Titles | Total Marketable US Businesses |
| 38260000 | Analytical instruments | 1,585 |
| 38260100 | Spectroscopic and other optical properties measuring equip. | 32 |
| 38260101 | Flame photometers | 0 |
| 38260102 | Hydrogen ion equipment, colorimetric | 5 |
| 38260103 | Infrared analytical instruments | 25 |
| 38260104 | Mass spectrometers | 8 |
| 38260105 | Mass spectroscopy instrumentation | 14 |
| 38260106 | Nephelometers, except meteorological | 2 |
| 38260107 | Photometers | 1 |
| 38260108 | Polarigraphic equipment | 1 |
| 38260109 | Polariscopes | 0 |
| 38260110 | Reflectoscopes | 1 |
| 38260111 | Refractometers, except industrial process type | 1 |
| 38260112 | Spectrofluorometers | 1 |
| 38260113 | Spectrographs | 3 |
| 38260114 | Spectrometers | 29 |
| 38260115 | Ultraviolet analytical instruments | 9 |
| 38260200 | Analytical optical instruments | 42 |
| 38260201 | Borescopes | 5 |
| 38260202 | Microscopes, electron and proton | 31 |
| 38260203 | Photomicrographic apparatus | 4 |
| 38260300 | Liquid testing apparatus | 21 |
| 38260301 | Densitometers, analytical | 0 |
| 38260302 | Liquid chromatographic instruments | 8 |
| 38260303 | Moisture analyzers | 14 |
| 38260304 | Osmometers | 0 |
| 38260305 | Petroleum product analyzing apparatus | 3 |
| 38260306 | PH meters, except industrial process type | 0 |
| 38260307 | Turbidometers | 0 |
| 38260308 | Water testing apparatus | 19 |
| 38260400 | Blood testing apparatus | 13 |
| 38260401 | Amino acid analyzers | 7 |
| 38260402 | Hemoglobinometers | 2 |
| 38260403 | Protein analyzers, laboratory type | 13 |
| 38260500 | Gas testing apparatus | 10 |
| 38260501 | Gas analyzing equipment | 14 |
| 38260502 | Gas chromatographic instruments | 3 |
| 38260600 | Instruments measuring magnetic and electrical properties | 14 |
| 38260601 | Coulometric analyzers, except industrial process type | 1 |
| 38260602 | Electrolytic conductivity instruments | 6 |
| 38260603 | Electron paramagnetic spin type apparatus | 0 |
| 38260604 | Electrophoresis equipment | 3 |
| 38260605 | Magnetic resonance imaging apparatus | 70 |
| 38260606 | Neutron activation | 1 |
| 38260700 | Instruments measuring thermal properties | 16 |
| 38260701 | Differential thermal analysis instruments | 4 |
| 38260702 | Thermal analysis instruments, laboratory type | 19 |
| 38260703 | Thermogravimetric analyzers | 0 |
| 38269901 | Automatic chemical analyzers | 21 |
| 38269902 | Chromatographic equipment, laboratory type | 36 |
| 38269904 | Colorimeters (optical instruments) | 3 |
| 38269905 | Dust sampling and analysis equipment | 5 |
| 38269906 | Elemental analyzers | 3 |
| 38269907 | Environmental testing equipment | 117 |
| 38269908 | Integrators (mathematical instruments) | 9 |
| 38269909 | Laser scientific and engineering instruments | 161 |
| 38269910 | Microprobes | 7 |
| 38269911 | Particle size analyzers | 6 |
| 38269912 | Perimeters (optical instruments) | 5 |
| 38269914 | Sewage testing apparatus | 1 |
| 38269915 | Specific ion measuring instruments | 3 |
| 38269916 | Surface area analyzers | 4 |
| 38269917 | Titrimeters | 1 |
