Paraformaldehyde Polymer Analysis Standard from Mexico
Certified reference paraformaldehyde 96% for formaldehyde emission testing and polymer analysis instrumentation calibration. NIST-traceable purity ensures accurate quantification in resin testing laboratories. HTS 2912.60.00.00 classification applies to this analytically pure aldehyde polymer standard.
Duty Rate — Mexico → United States
15.1%
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
• Certificate of analysis with uncertainty budget required for reference material classification
• Small package exemption may apply for <1kg analytical standards
• Avoid 'for retail sale' packaging preventing Chapter 38 laboratory reagent classification