Benzoic Acid Calibration Standard from Mexico
Certified reference material benzoic acid for HPLC/GC calibration in pharmaceutical and environmental laboratories. Traceable to NIST SRM with certified purity ±0.1%. Classifies as pure benzoic acid under HTS 2916.31.11.05 despite laboratory end use.
Duty Rate — Mexico → United States
16.5%
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 traceability certificate and uncertainty budget in calibration documentation
• Specify storage conditions (2-8°C, desiccated) and expiration dating (2 years from manufacture)
• Avoid laboratory reagent misclassification by emphasizing pure chemical identity