2845.40.00.00/Helium-3 Polarized Gas/Japan

Helium-3 Polarized Gas from Japan

Spin-polarized Helium-3 gas used in neutron polarizers and MRI lung imaging research. Classifies as the isotope under HTS 2845.40.00.00 despite polarization, as it's chemically the same compound. Produced via optical pumping techniques.

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

• Ship in polarized state maintaining glass cells; declare polarization method and half-life; comply with medical device regs if for human use