Liquid Helium for Cryogenic Research from Japan
Cryogenically liquefied helium (-269°C) in insulated dewars for superconductivity experiments and dilution refrigerators. Remains under HTS 2804.29.0010 as the elemental rare gas in liquid state.
Duty Rate — Japan → United States
3.7%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Use UN1970 markings for liquid helium transport; include vent system specs
• Declare helium-3 isotope content if enriched, as it affects EAR licensing
• Avoid delays by pre-notifying ports about cryogenic requirements