Mercury Calibration Standard from Mexico
NIST-traceable mercury standard solution or metal (10,000 ppm Hg) for analytical instrument calibration, HTS 2805.40.00.00 for the elemental component. Matrix-matched for AAS, ICP-MS analysis with ±0.5% accuracy certification.
Duty Rate — Mexico → United States
11.7%
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
• Include NIST certificate numbers on documentation for duty-free scientific instrument calibration qualification
• Specify exact concentration and matrix (metal vs. acid solution) to avoid reclassification issues