High-Purity Research Oxygen-18 Isotope from Japan
Enriched oxygen-18 stable isotope gas (>97% purity) for PET imaging tracers and metabolic research. Still classified under HTS 2804.40.00.00 as oxygen, since stable isotopes of nonmetals remain in Chapter 28 unless radioactive.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include enrichment ratio certificates from supplier
• Comply with stable isotope import regs under NRC if research-bound
• Avoid misdeclaration as radioactive material