Tritium Calibration Source from Mexico
Sealed source containing adsorbed tritium for calibrating beta radiation monitors. Classified as a tritium compound under HTS 2844.41.00.00; NIST-traceable with certificate of activity. Used by health physics departments.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• ANSI N323A calibration standard reference; annual leak testing records; returnee program for depleted sources