9001.90.90.00/Calcium Fluoride Window/Canada

Calcium Fluoride Window from Canada

An unmounted flat optical window made of calcium fluoride (CaF2) for infrared spectroscopy and laser systems. Falls under HTS 9001.90.90.00 as a non-glass optical element transmitting in UV-IR spectrum. Used unprotected in optical paths requiring high purity.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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Import Tips

• Supply transmission curve data proving IR/UV optical properties to avoid Chapter 69 ceramic classification

• Document scratch-dig specifications (e.g

• 40-20) confirming optical workmanship standards

• For AR-coated versions, verify if coating changes classification to mounted assemblies

Calcium Fluoride Window from Canada — Import Duty Rate | HTS 9001.90.90.00