Refractometer Prism Assembly from Mexico
Optical prism and electrical readout assembly for refractometers measuring liquid concentrations. Part for instruments of 9027.20 (chromatographs, refractometers). Electrical component qualifies for 9027.90.56.
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
• Specify refractive index range and electrical interface type in commercial invoice
• Include material composition (sapphire/glass) to avoid glass article misclassification
• Test for optical precision standards before import to support tariff claims