Turbidimeter Light Shield Assembly from China
Black Delrin light shield assemblies for nephelometric turbidimeters (9027.30 optical type) preventing ambient light interference. Precision alignment features ensure LED light path integrity. Classified 9027.90.64.00 as optical instrument accessories.
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
• Test and certify light-tight specifications (<0.01 NTU interference from ambient light)
• Include CAD drawings showing alignment tolerances for specific turbidimeter models
• Distinguish from general machine housings via optical path documentation