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2845.90.01.00/Krypton-86 Gas Standard/Japan

Krypton-86 Gas Standard from Japan

Krypton-86 isotopic gas used as wavelength standard in laser metrology and spectroscopy. Falls under HTS 2845.90.0100 for other non-2844 isotopes.

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

• Provide spectroscopic purity certificate; use specialty gas cylinders with valves; declare as calibration standard to avoid chemical classification