Helium-3/Helium-4 Hyperpure Mixture from Japan
A hyperpure helium mixture with He-3 isotopically enriched to >99% of helium content, used in dilution refrigerators for ultra-low temperature physics. It is an isotopically pure rare gas.
Duty Rate — Japan → Canada
0%
Import Tips
• Confirm the helium-3 is not radioactive; radioactive isotopes fall under heading 28.44
• Provide a certificate of isotopic purity
• Ensure the mixture is for research purposes and meets any applicable regulations