Other, not included in the subheadings above, containing 40 percent or more by mass of pentafluoroethane (HFC-125)
Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: > Containing other hydrofluorocarbons (HFCs) but not containing chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs): > Other, not included in the subheadings above, containing 40 percent or more by mass of pentafluoroethane (HFC-125)
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 3827.63.00.00
HFC-125 Refrigerant Blend R-507
Azeotropic refrigerant mixture containing 50% pentafluoroethane (HFC-125) and 50% 1,1,1-trifluoroethane (HFC-134a) by mass, used in commercial refrigeration systems. Classified under HTS 3827.63.00.00 because it contains over 40% HFC-125 and no CFCs or HCFCs. Essential for low-temperature applications like frozen food storage.
HFC-507A Medium Temperature Refrigerant
Non-ozone depleting refrigerant blend of 50% HFC-125 and 50% HFC-134a designed for supermarket display cases and transport refrigeration. Meets HTS 3827.63.00.00 criteria with HFC-125 content exceeding 40% by mass. Provides efficient cooling without global warming compounds from older CFC systems.
HFC-125 Dominant Fire Suppressant FK-5-1-12
Clean agent fire extinguishing mixture containing over 40% pentafluoroethane (HFC-125) with fluoroketones for total flooding systems in data centers. Classified in 3827.63.00.00 due to high HFC-125 content and absence of banned ozone depleters. Replaces toxic Halon 1301 in critical fire protection applications.
R-404A Replacement HFC Blend HCR-404A
Low-GWP retrofit refrigerant containing 45% HFC-125 blended with HFOs and HFC-32 for replacing R-404A in existing cold storage systems. Qualifies for HTS 3827.63.00.00 due to dominant pentafluoroethane content. Designed for drop-in compatibility with minimal system modifications.
Industrial Chiller HFC-125 Coolant Mixture
High-performance coolant blend with 42% HFC-125 and HFC-227ea for centrifugal chillers in pharmaceutical manufacturing. Meets 3827.63.00.00 classification for HFC mixtures with dominant pentafluoroethane content. Provides superior heat transfer efficiency in water-cooled systems.
HFC-125 Transport Refrigeration Blend R-452A
R-404A replacement blend containing 41% HFC-125, HFC-32, and HFO-1234yf for refrigerated trucks and containers. Classified under HTS 3827.63.00.00 for HFC-dominant mixtures without ozone depleting substances. A2L safety classification enables use in marine shipping containers.
HFC-125 Based Foam Blowing Agent Blend
Polyurethane foam blowing agent mixture containing 48% HFC-125 with hydrocarbons for appliance insulation panels. Qualifies for 3827.63.00.00 as HFC mixture exceeding 40% pentafluoroethane threshold. Zero ODP formulation for domestic refrigerator production.
HFC-125 Medical Cryogenic Cooling Mixture
Specialty cryogenic refrigerant blend with 55% HFC-125 for MRI machine cooling systems and laboratory freezers. Classified 3827.63.00.00 due to high pentafluoroethane concentration. Provides stable -80°C temperatures for biological sample preservation.
HVAC Heat Pump HFC-125 Blend R-463C
Next-generation heat pump refrigerant with 43% HFC-125, CO2, and HFOs for residential HVAC systems. HTS 3827.63.00.00 classification for pentafluoroethane dominant HFC mixtures. A2L classification enables higher efficiency split systems.