Optical Oxygen Analyzer from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, 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