Fused Quartz Prism from Japan

High-purity fused quartz equilateral prism for UV spectroscopy and Schlieren imaging. HTS 9001.90.90.00 for non-glass crystalline optical element with transmission to 200nm. Unmounted for spectrometer builds.

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%

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Import Tips

• OH content (<1ppm) and UV cutoff specs prove high-purity optical grade

• Index of refraction homogeneity data required for precision optics

• Avoid glass classification via silica structure analysis