UV-DOAS Flue Gas Monitor
Ultraviolet Differential Optical Absorption Spectroscopy system for measuring SO2, NO2, and O3 in power plant flue gases across open paths. HTS 9027.10.40.00 applies to this optical remote sensing apparatus.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If functioning primarily as general UV spectrophotometer
Lack of gas-specific calibration shifts to general optical instruments.
If with integrated industrial process control functions
Measuring instruments with PLC integration may classify under 9031.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Provide Method 6C/7E performance specifications for EPA validation
• Include optical path length certification in technical documentation
Related Products under HTS 9027.10.40.00
Portable Optical Smoke Density Meter
Handheld device using light obscuration to measure smoke density and particulate matter in ambient air or vehicle exhaust. Meets HTS 9027.10.40.00 criteria as optical apparatus for smoke/gas analysis.
Biogas Optical Methane Analyzer
Fixed installation analyzer using laser spectroscopy for methane, CO2, and H2S measurement in anaerobic digesters. Classifies under HTS 9027.10.40.00 for optical biogas composition analysis.
Cavity Ring-Down Spectroscopy Trace Gas Analyzer
Ultra-sensitive optical spectrometer measuring ppb levels of water vapor, isotopes, and greenhouse gases using laser cavity decay time. HTS 9027.10.40.00 for advanced optical gas analysis.
Raman Gas Analyzer for Explosive Detection
Laser Raman spectroscopy system identifying explosive vapors and chemical agents through molecular fingerprint scattering. HTS 9027.10.40.00 covers optical gas/plume analysis.
Photoacoustic Gas Monitor
Infrared photoacoustic spectroscopy analyzer detecting multiple trace gases through sound wave generation in modulated light-absorbed gas. Optical modulation classifies under HTS 9027.10.40.00.
Quantum Cascade Laser HCl Analyzer
QCL-based optical analyzer for continuous hydrogen chloride monitoring in incinerator and semiconductor process gases. Mid-IR laser absorption qualifies for HTS 9027.10.40.00.