Radiation-Hardened Optical Fiber from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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