Optical Oxygen Analyzer from Japan
Instrument using fluorescence quenching of optical sensor for dissolved oxygen measurement in liquids. Employs UV/blue excitation light, classified HTS 9027.50.80 as optical radiation chemical analyzer. For aquaculture and wastewater.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document fluorescence quenching principle and excitation wavelength specs
• Probe membranes declared as consumables, not main instrument
• Avoid electrochemical sensor confusion leading to 9027.80 classification