Krypton-86 Gas Standard
Krypton-86 is a stable isotope of krypton, used as a wavelength standard in laser metrology and spectroscopy. It is not radioactive and therefore not classified under heading 28.44. This tariff item covers isotopes other than those of heading 28.44.
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 |
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Import Tips & Compliance
• Classify krypton-86 under tariff item 2845.90.00 as a stable isotope
• Provide documentation of the isotopic composition to the CBSA
• If the gas is in a cylinder, ensure it meets Canadian transport regulations for compressed gases
Related Products under Tariff item 2845.90.00
Argon-38 Enriched Gas
Argon-38 is a stable isotope of argon, enriched for use in geological age dating and tracer studies. It is a separate chemical element that is not radioactive, so it does not fall under heading 28.44. This tariff item covers isotopes other than those of heading 28.44 and their compounds.
Carbon-14 Labeled Urea
Carbon-14 labeled urea is an organic compound of the radioactive isotope carbon-14, used in biochemical tracer studies and radiometric dating. Although carbon-14 is radioactive, it is not one of the specific elements listed in heading 28.44 (technetium, promethium, polonium, or elements with atomic number greater than 84). Therefore, it falls under this tariff item for isotopes other than those of heading 28.44.
Deuterium Oxide (Heavy Water, D2O)
Deuterium oxide, also known as heavy water, is a compound of the stable hydrogen isotope deuterium. It is used as a moderator in nuclear reactors and in various scientific applications. Since deuterium is not a radioactive isotope, it is excluded from heading 28.44 and falls under this tariff item for compounds of isotopes other than those of heading 28.44.
Helium-3 Gas
Helium-3 is a rare stable isotope of helium, used in cryogenics, neutron detection, and quantum computing. It is not a radioactive isotope, so it is not classified in heading 28.44. This tariff item covers isotopes other than those of heading 28.44, including helium-3.
Lead-208 Enriched Target
Lead-208 enriched target is a stable isotope of lead, used in nuclear physics experiments and isotope production. It is not radioactive and does not fall under heading 28.44. This tariff item covers isotopes other than those of heading 28.44.
Magnesium-25 Carbonate
Magnesium-25 carbonate is a compound of the stable isotope magnesium-25, used in nutrition studies and isotope dilution analysis. It is not radioactive and therefore not classified under heading 28.44. This tariff item covers compounds of isotopes other than those of heading 28.44.