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Refractometer Prism Assembly from Canada

Sapphire prism with calibration scale for Abbe refractometers (9027.20). Critical for measuring refractive index of liquids. Classified 9027.90.84.00 as dedicated optical component.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter

Import Tips

Specify refractive index range and dispersion correction

Anti-reflective coatings require optical treatment declaration

Standalone prisms risk 9001 classification