Other
Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included. > Containing trifluoromethane (HFC-23) or perfluorocarbons (PFCs) but not containing chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs): > Other > Other > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 3827.59.00
HFC-23 Calibration Gas Standard
A NIST-traceable calibration gas standard containing known concentrations of trifluoromethane (HFC-23) in a balance gas, used for calibrating greenhouse gas monitoring equipment. This mixture falls under tariff item 3827.59.00 as it contains HFC-23, a halogenated derivative of methane, and does not contain CFCs or HCFCs. It is not a separate chemically defined compound, but a mixture, and is not excluded by Chapter 38 notes.
HFC-23 Fire Suppression Blend
A clean agent fire suppression blend containing HFC-23, designed for use in data centers and electrical equipment protection. This product is a mixture containing trifluoromethane and is free of CFCs and HCFCs, meeting the criteria for tariff item 3827.59.00. It is not a separate chemically defined compound and is not excluded by Chapter 38 notes.
HFC-23 Leak Detection Gas Mixture
A tracer gas mixture containing HFC-23, used for leak detection in HVAC systems. This blend falls under tariff item 3827.59.00 as it contains trifluoromethane and is free of CFCs and HCFCs. It is a mixture, not a separate chemically defined compound, and is not excluded by Chapter 38 notes.
HFC-23 Medical Aerosol Propellant Blend
This is a pharmaceutical-grade propellant blend containing trifluoromethane (HFC-23) used in metered-dose inhalers and nasal sprays. It falls under tariff item 3827.59.00 because it is a mixture containing a halogenated derivative of methane (HFC-23) that does not contain chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs). The product meets USP standards for medical applications and is not a separate chemically defined compound, which would be excluded from Chapter 38.
HFC-23 Refrigerant Blend for Industrial Chillers
A specialized refrigerant mixture containing trifluoromethane (HFC-23), used in low-temperature industrial chillers and cryogenic applications. This product is a mixture containing HFC-23 and is free of CFCs and HCFCs, falling under tariff item 3827.59.00. It is not a separate chemically defined compound and is not excluded by Chapter 38 notes.
PFC-116 Chemical Vapor Deposition Precursor
A perfluorohexane (PFC-116) mixture used as a precursor gas in chemical vapor deposition for optical coatings. This product contains perfluorocarbons (PFCs) and is free of CFCs and HCFCs, falling under tariff item 3827.59.00. It is a mixture, not a separate chemically defined compound, and is not excluded by Chapter 38 notes.
PFC-14 Semiconductor Etching Gas Mixture
A perfluorocarbon (PFC-14, CF4) based plasma etching gas mixture used in microchip manufacturing. This product contains perfluorocarbons and is free of CFCs and HCFCs, falling under tariff item 3827.59.00. It is a mixture, not a separate chemically defined compound, and is not excluded by Chapter 38 notes.
PFC Electronics Cleaning Solvent Mixture
A precision cleaning solvent blend containing perfluorocarbons, used for removing flux residues from circuit boards. This product contains PFCs and is free of CFCs and HCFCs, falling under tariff item 3827.59.00. It is a mixture, not a separate chemically defined compound, and is not excluded by Chapter 38 notes.
PFC Heat Transfer Fluid Blend
A perfluorocarbon mixture designed for high-temperature heat transfer in semiconductor manufacturing equipment. This product contains PFCs and is free of CFCs and HCFCs, falling under tariff item 3827.59.00. It is a mixture, not a separate chemically defined compound, and is not excluded by Chapter 38 notes.
PFC Plasma Cleaning Gas Mixture
A perfluorocarbon blend used for plasma chamber cleaning in semiconductor fabrication facilities. This product contains PFCs and is free of CFCs and HCFCs, falling under tariff item 3827.59.00. It is a mixture, not a separate chemically defined compound, and is not excluded by Chapter 38 notes.