HFC-143a Refrigerant Blend R-507
Azeotropic refrigerant blend consisting of 50% HFC-125 and 50% HFC-143a, exceeding 15% HFC-143a by mass. Used in commercial refrigeration systems like supermarket display cases and transport refrigeration. Classified under 3827.61.00.00 due to high HFC-143a content without CFCs or HCFCs.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing less than 15% HFC-143a by mass
Mixtures with lower HFC-143a concentration fall under the general HFC subheading without specific percentage threshold.
If imported as pure HFC-143a chemical rather than mixture
Pure halogenated hydrocarbons are classified as individual chemicals in Chapter 29, not as mixtures in Chapter 38.
If pre-charged in retail cylinders as organic composite solvents
Refrigerant gases packaged for retail sale may be treated as organic composite solvents rather than chemical mixtures.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Obtain EPA Significant New Alternatives Policy (SNAP) approval and verify HFC-143a percentage via lab analysis before import
• Include Safety Data Sheets (SDS) and refrigerant purity certificates; common pitfall is mislabeling blends leading to reclassification
• Comply with AIM Act allocations for HFC production/import quotas; ensure proper venting prohibition documentation
Related Products under HTS 3827.61.00.00
HFC-143a R-404A Replacement Blend
Low-GWP refrigerant mixture with over 15% HFC-143a designed as drop-in replacement for R-404A in medium/high-temp refrigeration. Contains HFC-143a blended with other HFCs for cascade systems. Meets 3827.61.00.00 criteria for HFC-143a dominant mixtures.
HFC-143a Industrial Chiller Fluid
Specialty HFC blend for centrifugal chillers containing ≥15% HFC-143a by mass, used in large HVAC systems for commercial buildings. Optimized for high-pressure applications without ozone-depleting substances. Falls under 3827.61.00.00 per HFC-143a concentration requirements.
HFC-143a Supermarket Refrigerant R-508
Azeotropic blend of HFC-23 and HFC-143a (>15% by mass) for low-temperature supermarket freezers and ice cream cabinets. Provides superior cascade refrigeration performance. Qualifies for 3827.61.00.00 due to specified HFC-143a content.
HFC-143a Transport Refrigeration Blend
HFC mixture exceeding 15% HFC-143a for refrigerated trucks and containers, providing reliable cooling for perishable goods transport. Compliant with HFC-only specifications excluding CFCs/HCFCs. Classified in 3827.61.00.00 based on HFC-143a mass threshold.