Code 3827 51 · Heading 3827

Mixtures containing trifluoromethane (HFC-23), without CFCs or HCFCs

This category covers mixtures containing trifluoromethane, also called HFC-23. The mixture must not contain chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs).

For example

A chemical mixture containing HFC-23 and no CFCs or HCFCs

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See the official tariff text

Official tariff text

Mixtures containing trifluoromethane "HFC-23" (excl. containing chlorofluorocarbons "CFCs" or hydrochlorofluorocarbons "HCFCs")

The path to this code

Every code is reached through these choices, one level at a time.

Step 4 of 4

Step 1 · Section VI Products of the chemical or allied industries
Is it an inorganic or organic chemical; a pharmaceutical product; a fertilizer; a tanning or dye extract, pigment, paint, varnish, filler or printing ink; an essential oil, perfume, cosmetic or toilet product; soap, a surface-active, washing, cleaning, polishing or wax product; a protein, modified starch, glue or enzyme; an explosive, pyrotechnic article, match or other specified combustible material; a photographic or cinematographic product; or another chemical product?
✓
Step 2 · Chapter 38 Miscellaneous chemical products 11 of 11 chapters in section VI
Which specific product type is it: a carbon or mineral product, resin or terpentine product, pesticide, textile, paper or leather treatment, soldering or welding preparation, oil or fuel additive, rubber or plastic additive, fire-extinguishing preparation, solvent or paint remover, catalyst, refractory product, alkylbenzene or alkylnaphthalene mixture, doped electronic material, hydraulic fluid, antifreeze or de-icing liquid, culture substrate, diagnostic or laboratory reagent, fatty acid or fatty alcohol, foundry binder or other chemical preparation, chemical waste, biodiesel, or a mixture containing halogenated methane, ethane or propane derivatives?
✓
Step 3 · Heading 3827 Mixtures containing halogenated derivatives of meth… 27 of 27 headings under chapter 38
Which halogenated derivative or combination does the mixture contain: a CFC, HCFC, HBFC, PFC, HFC, methyl bromide, bromochloromethane, a halon, tetrachloromethane, 1,1,1-trichloroethane, or another listed substance combination?
✓
Step 4 · Subheading 3827 51 Mixtures containing trifluoromethane "HFC-23" (excl… 10 of 19 subheadings under heading 3827
Does the mixture contain trifluoromethane (HFC-23), and does it contain no CFCs or HCFCs?

Full 8-digit codes

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1 code below this one

3827 51 00 Mixtures containing trifluoromethane "HFC-23" (excl. containing chlorofluorocarbons "CFCs" or hydrochlorofluorocarbons "HCFCs") 6.5% Save

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Export to Norway

What Norwegian customs charges when goods like these are imported into Norway.

38.27.5100

Containing trifluoromethane (HFC-23)

Ordinary duty

Duty free

Goods of EU origin

Duty free You need documentation of EU origin to use this rate.

Norwegian tariff data version 1.5/1.2, last checked Aug. 3, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

Export to the United Kingdom

What UK customs charges when goods like these are imported into the UK.

All 3 UK lines under this code

They all have the same duty rates shown here.

Ordinary duty

6.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1576, last checked Aug. 3, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

Check the neighbouring codes

The codes just before and after this one, in case a nearby group fits better.

See all 19 codes at this level

Previous code 3827 40

Mixtures containing methyl bromide "bromomethane" or bromochlorometha…

you are here 3827 51

Mixtures containing trifluoromethane "HFC-23" (excl. containing chlor…

Next code 3827 59

Mixtures containing perfluorocarbons "PFCs" (excl. containing chlorof…

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with SKAT, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.