Purple K Potassium Bicarbonate Fire Extinguisher Powder from Japan
High-performance dry chemical powder (KHCO3-based) for Class B/C fire extinguishers, known for superior metal fire suppression. Classifies in HTS 3813.00.5000 as specialized fire extinguisher preparation. Popular in aviation and industrial settings.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• FAA approval required for aircraft use; provide TSO documentation for aviation imports
• Test for moisture content (<0.1%) to prevent caking; include sieve analysis certificates
• Avoid 2836 classification by proving suppressant formulation exceeds plain chemical salts