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Interferometer Reference Mirror from Canada

A super-polished flat mirror mounted in a vibration-isolated holder for use as a reference surface in laser interferometers for precision metrology. Classified in HTS 9002.90.40.00 for its role in mounted optical measuring instruments.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Certify flatness specs (e.g

lambda/20); specify instrument compatibility; declare value based on optical quality not substrate