Xenon-129 Isotopically Pure Gas
Xenon-129 isotopically pure gas, enriched to 99%+ isotopic purity by volume, is a separate chemically defined element of heading 28.04. It is used in NMR spectroscopy and medical imaging research, and qualifies under Chapter 28 Note 1(a) as a chemical element, with no added substances rendering it specific for a particular use.
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:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the gas is mixed with other substances for a specific application
Mixtures not meeting Chapter 28 Note 1 criteria may fall under residual chemical products in Chapter 38.
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 isotopically pure (99%+ by volume) and provide a certificate of analysis to CBSA
• Verify that the product is not mixed with other gases, as mixtures may fall outside Chapter 28
• Check if an import permit is required for controlled substances, though rare gases are generally exempt
Related Products under Tariff item 2804.29.00
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Helium-3/Helium-4 Hyperpure Mixture
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