Radiation-Hardened Optical Fiber from China
Pure silica core fiber doped for minimal radiation-induced attenuation, used in space, nuclear, and high-energy physics environments. Maintains transmission under gamma/neutron exposure. HTS 9001.10.0070 for environmentally specialized fibers.
Duty Rate — China → United States
41.7%
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
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Include radiation test data (dose, attenuation change) proving hardening characteristics,Document end-use applications to distinguish from standard telecom fiber,Import bare fiber only; armored cables for harsh environments classify under 8544