Thorium-232 Isotope Standard from Japan
Certified Th-232 spike solution (10 mg/L in 2% HNO3) for mass spectrometry calibration. As artificial radioactive isotope mixture, HTS 2844.30.50 covers per note 4(b). NIST-traceable for alpha spectrometry.
Duty Rate — Japan → United States
5%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include half-life and decay chain documentation; use Excepted Package; limit to LSA-I category