Chapter 38 · Miscellaneous chemical products · Section 6

HS Code 3827.51

Containing trifluoromethane (HFC-23)

Heading 3827: Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included

US duty (general)
3.7%
US HTS lines
1
EU CN codes
1
UK commodity codes
4
Unit
kg

US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources

United States - HTS lines under 3827.51

Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.

HTS codeDescriptionGeneralSpecialOtherUnit
3827.51.00 Containing trifluoromethane (HFC-23) 3.7% Free (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM,P, PA, PE, S, SG) 25% kg

Estimate the US duty runs in your browser · no caps

Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.

European Union - CN codes under 3827.51

Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.

CN codeDescription
3827 51 00 Containing trifluoromethane (HFC-23) EU duty (TARIC) →

United Kingdom - commodity codes under 3827.51

Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.

Commodity codeDescription
3827 51 00 00 Containing trifluoromethane (HFC-23) UK duty & VAT →
3827 51 00 10 R508A (containing 61% of hexafluoroethane (perfluoroethane) (PFC-116) and 39% of trifluoromethane (fluoroform) (HFC-23)) UK duty & VAT →
3827 51 00 20 R508B (containing 54|% of hexafluoroethane (perfluoroethane) (PFC-116) and 46|% of trifluoromethane (fluoroform) (HFC-23)) UK duty & VAT →
3827 51 00 90 Other UK duty & VAT →
Not a customs ruling. Classification is determined by the importing country's customs authority and depends on the exact product. This page is reference information from official published schedules, not legal advice. For a binding decision, request a ruling (US: CBP CROSS · UK: HMRC ATaR · EU: BTI).

Other subheadings in 3827

3827.00 3827 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewh 3827.11 Containing chlorofluorocarbons (CFCs), whether or not containing hydrochlorofluorocarbons 3827.12 Containing hydrobromofluorocarbons (HBFCs) 3827.13 Containing carbon tetrachloride 3827.14 Containing 1,1,1-trichloroethane (methyl chloroform) 3827.20 Containing bromochlorodifluoromethane (Halon-1211), bromotrifluoromethane (Halon-1301) or 3827.31 Containing substances of subheadings 2903.41 to 2903.48 3827.32 Other, containing substances of subheadings 2903.71 to 2903.75 3827.39 Other 3827.40 Containing methyl bromide (bromomethane) or bromochloromethane 3827.51 Containing trifluoromethane (HFC-23) 3827.59 Other 3827.61 Containing 15 percent or more by mass of 1,1,1-trifluoroethane (HFC-143a) 3827.62 Other, not included in the subheading above, containing 55 percent or more by mass of pent

Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.