Gadolinium-153 Calibration Source from China
Gadolinium-153 sources for calibrating bone density scanners and PET/SPECT systems. Classified in HTS 2844.43.00.21 as it contains the named isotope gadolinium-153 in oxide form. Chapter notes confirm radioactive isotopes coverage.
Duty Rate — China → United States
25%
Rate breakdown
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Classify activity levels to determine Type A vs Type B(U) packaging requirements
• Include isotope purity certificate (>99%) to avoid reclassification challenges
• Coordinate with CBP for radiation portal monitor pre-clearance at port of entry