Xenon-129 Isotopically Pure Gas from Canada
Xenon-129 (Xe-129) gas enriched to 99%+ isotopic purity by volume, falling under HTS 2804.29.0030 for isotopically pure rare gases. Primarily utilized in NMR spectroscopy and medical imaging research.
Duty Rate — Canada → United States
3.7%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Require supplier certificate of analysis confirming Xe-129 enrichment >99% to justify 2804.29.0030 classification
• Comply with EPA import notifications for high-purity gases used in research applications
• Package in certified high-pressure cylinders; declare as 'research gas' to avoid general chemical tariffs