Liquid Helium for Cryogenic Research
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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If enriched helium isotopes
Artificial isotopic mixtures with modified composition classify as radioactive isotopes per Note 6.
If with organic stabilizers
Stabilized cryogenic liquids become organic-inorganic preparations outside pure elements.
If optical element coolant
Chapter excludes helium used in optical halide elements under heading 9001.
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Import Tips & Compliance
• 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
Related Products under HTS 2804.29.00.10
Helium Gas Cylinder
Compressed helium gas in a high-pressure steel cylinder, used for inflating balloons and industrial applications. Classified under HTS 2804.29.0010 as pure helium, a rare gas in gaseous form meeting Chapter 28 definitions for chemically defined nonmetals.
High-Purity Helium for MRI Machines
Ultra-pure helium (99.999%) supplied in cryogenic dewars for cooling superconducting magnets in medical MRI scanners. Falls under HTS 2804.29.0010 as a chemically defined rare gas used in its elemental gaseous state.
Party Balloon Helium Canister
Disposable helium canister (14.9 cu ft) for inflating latex balloons at events, containing 99.99% pure helium. Classified in HTS 2804.29.0010 as elemental rare gas, not a mixture or preparation.
Industrial Welding Helium Shielding Gas
Pure helium cylinders for MIG/TIG welding to provide inert atmosphere shielding, preventing oxidation. HTS 2804.29.0010 applies to this chemically defined rare gas in compressed form.
Helium for Airship Inflation
Aviation-grade helium in large tubes for filling blimps and dirigibles, purity 99.99% to ensure lift without flammability. HTS 2804.29.0010 for pure rare gas element.
Leak Detection Helium Spray
Small helium canister with nozzle for ultrasonic leak testing in HVAC and automotive systems. Pure helium tracer gas under HTS 2804.29.0010 as elemental rare gas.