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%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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