1,1-Difluoroethane (HFC-152a) Fire Suppressant Blend Base from Mexico
HFC-152a acts as a base component in clean agent fire suppression systems for data centers and electronics. Classified per HTS 2903.43.10.00 for its pure chemical identity as a listed fluorinated hydrocarbon. It provides rapid fire knock-down without residue.
Duty Rate — Mexico → United States
13.7%
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
• UL 2127 listing and NFPA 2001 compliance docs needed; pressure test cylinders
• Pitfall: Blends over 10% may reclassify as mixtures