Campbell Scientific IRGASON Infrared Gas Analyzer from Japan
The Campbell Scientific IRGASON measures turbulent fluxes of carbon dioxide and water vapor for meteorological research. Classified under HTS 9015.80.80 as a meteorological instrument for atmospheric boundary layer analysis. Used in flux tower networks and climate studies.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• EPA method validation documentation required for atmospheric research instruments
• Calibration gas certificates must accompany to verify measurement accuracy
• Distinguish from industrial gas analyzers that classify under heading 9027