Sellmeier Equation Refractometer from China
Advanced Abbe refractometer calculating dispersion curves using Sellmeier coefficients for optical glass quality control. HTS 9027.89.80.60 for physical analysis of refractive index across spectrum. Temperature-stabilized prism.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Prism material certificates (e.g
• synthetic sapphire) required
• Software export control verification for advanced calculation algorithms