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%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide spectroscopic purity certificate; use specialty gas cylinders with valves; declare as calibration standard to avoid chemical classification