Argon-38 Calibration Gas
Argon-38 calibration gas is a stable isotope of argon, a rare gas, mixed at trace levels in a 1-liter cylinder for mass spectrometry calibration. It qualifies as a separate chemical element under Chapter 28, as it is not a radioactive isotope and falls under the 'other' rare gases category.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the gas is certified as a stable isotope and not radioactive to avoid classification under heading 28.44
• Provide a certificate of analysis to CBSA to confirm purity and isotopic composition
• Check if the cylinder meets Canadian transport regulations for compressed gases
Related Products under Tariff item 2804.29.00
Argon Gas for Welding
High-purity argon gas for welding is a rare gas in elemental form, used as an inert shielding atmosphere in MIG/TIG welding. It falls under tariff item 2804.29.00 as 'other' rare gases, distinct from hydrogen and helium.
Helium-3 Research Gas
Helium-3 research gas is an isotopically separated rare gas used in neutron detection and low-temperature physics. Although helium has a specific subheading, helium-3 is classified under 'other' rare gases because it is an isotope not covered by the standard helium subheading.
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