Schlieren Prism from Japan
High-precision wedge prism used in schlieren imaging systems to visualize density gradients in fluids and shock waves. Classified under HTS 9001.90.50.00 as an unmounted optical prism with exact wedge angle control. Essential for aerodynamic and heat transfer research applications.
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
• Wedge angle tolerance typically <1 arc minute; provide metrology certificates
• Parallelism between non-wedge faces critical for wavefront quality
• Specify glass homogeneity for distortion-free imaging applications