If you work with hydrofluorocarbons HFCs, perfluorocarbons PFCs or sulphur hexafluoride SF6 F gases, you must follow the guidance for F gas users, producers and traders. Some rules do not apply to certain types of F gas. These are F gases you must report on only. HFCs
The UK is phasing down HFCs by 79 by 2030. This is compared to the average use of HFCs between 2009 and 2012. The phase down also applies to mixtures containing these gases. If you use or service equipment containing HFCs, ask your supplier for advice on alternatives. F gas equipment manufacturers should
Read guidance on uses of HFCs exempt from the phase down. Types of HFC
The following tables list all HFCs and common HFC mixtures. Global warming potential GWP figures in these tables are rounded to the nearest whole number. You can use these figures as a guide to
Industrial designation Chemical name common name Chemical formula Global warming potential
HFC-23 trifluoromethane fluoroform CHF3 14,800
HFC-32 difluoromethane CH2F2 675
HFC-41 fluoromethane methyl fluoride CH3F 92
HFC-125 pentafluoroethane CHF2CF3 3,500
HFC-134 1,1,2,2-tetrafluoroethane CHF2CHF2 1,100
HFC-134a 1,1,1,2-tetrafluoroethane CH2FCF3 1,430
HFC-143 1,1,2-trifluoroethane CH2FCHF2 353
HFC-143a 1,1,1-trifluoroethane CH3CF3 4,470
HFC-152 1,2-difluoroethane CH2FCH2F 53
HFC-152a 1,1-difluoroethane CH3CHF2 124
HFC-161 fluoroethane ethyl fluoride CH3CH2F 12
HFC-227ea 1,1,1,2,3,3,3-heptafluoropropane CF3CHFCF3 3,220
HFC-236cb 1,1,1,2,2,3-hexafluoropropane CH2FCF2CF3 1,340
HFC-236ea 1,1,1,2,3,3-hexafluoropropane CHF2CHFCF3 1,370
HFC-236fa 1,1,1,3,3,3-hexafluoropropane CF3CH2CF3 9,810
HFC-245ca 1,1,2,2,3-pentafluoropropane CH2FCF2CHF2 693
HFC-245fa 1,1,1,3,3-pentafluoropropane CHF2CH2CF3 1,030
HFC-365 mfc 1,1,1,3,3-pentafluorobutane CF3CH2CF2CH3 794
HFC-43-10 mee 1,1,1,2,2,3,4,5,5,5- decafluoropentane CF3CHFCHFCF2CF3 1,640
Common mixtures containing HFCs
Industrial designation Mixture common name Global warming potential
HCFC-22 HFC-152a HCFC-124 R-401A 2088
HFC-125 HFC-143a HFC-134a R-404A 3922
HFC-32 HFC-125 HFC-134a R-407A 2107
HFC-32 HFC-125 HFC-134a R-407C 1774
HFC-32 HFC-125 HFC-134a R-407F 1825
HFC-32 HFC-125 R-410A 2088
PFC-218 HFC-134a HC-600a R-413A 2053
HFC-125 HFC-134a HC-600 R-417A 2346
HFC-125 HFC-134a HC-600a R-422A 3143
HFC-125 HFC-134a R-600a R-422D 2729
HFC-125 HFC-134a R-600 R-600a R-601a R-424A 2440
HFC-32 HFC-125 HFC-134a HFC-143a R-427A 2138
HFC-125 HFC-143a R-290 R-600a R-428A 3607
HFC-125 HFC-134a HFC-143a R-600a R-434A 3245
HFC-125 HFC-134a R-600 R-601 R-437A 1805
HFC-32 HFC-125 HFC-134a R-600 R-601a R-438A 2264
HFC-32 HFC-125 HFC-134a R-1234ze R-1234yf R-448A 1386
HFC32 HFC125 R1234yf R-452A 2140
HFC-134a HFC-125 HFC-32 HFC-227 R-601a R-600 R-453A 1765
HFC-125 HFC-143a R-507A 3985
HFC-23 PFC-116 R-508B 13396
PFCs
The following table lists all PFCs. Global warming potential figures in this table are rounded to the nearest whole number. You can use these figures as a guide to
Industrial designation Chemical name Chemical formula Global warming potential
PFC-14 tetrafluoromethane perfluoromethane, carbon tetrafluoride CF4 7,390
PFC-116 hexafluoroethane perfluoroethane C2F6 12,200
PFC-218 octafluoropropane perfluoropropane C3F8 8,830
PFC-3-1-10 R-31-10 decafluorobutane perfluorobutane C4F10 8,860
PFC-4-1-12 R-41-12 dodecafluoropentane perfluoropentane C5F12 9,160
PFC-5-1-14 R-51-14 tetradecafluorohexane perfluorohexane C6F14 9,300
PFC-c-318 octafluorocyclobutane perfluorocyclobutane c-C4F8 10,300
Sulphur hexafluoride
Global warming potential figures in this table are rounded to the nearest whole number. You can use these figures as a guide to
Chemical name Chemical formula Global warming potential
Sulphur hexafluoride SF6 22,800
F gases you must report on only
You may need to report on unsaturated hydrochlorofluorocarbons, fluorinated ethers and alcohols, and other perfluorinated gases if you
Check the guidance on recording and reporting F gas to find out when you must report on these gases.
The following tables list all relevant gases. Unsaturated hydrochlorofluorocarbons
Chemical name Chemical formula Global warming potential
HFC-1234yf CF3CF CH2 4
HFC-1234ze trans CHF CHCF3 7
HFC-1336mzz CF3CH CHCF3 9
HCFC-1233zd C3H2ClF3 4.5
HCFC-1233xf C3H2ClF3 Not yet available
Fluorinated ethers and alcohols
Chemical name Chemical formula Global warming potential
HFE-125 CHF2OCF3 14,900
HFE-134 HG-00 CHF2OCHF2 6,320
HFE-143a CH3OCF3 756
HCFE-235da2 isofluorane CHF2OCHClCF3 350
HFE-245cb2 CH3OCF2CF3 708
HFE-245fa2 CHF2OCH2CF3 659
HFE-254cb2 CH3OCF2CHF2 359
HFE-347 mcc3 HFE-7000 CH3OCF2CF2CF3 575
HFE-347pcf2 CHF2CF2OCH2CF3 580
HFE-356pcc3 CH3OCF2CF2CHF2 110
HFE-449sl HFE-7100 C4F9OCH3 297
HFE-569sf2 HFE-7200 C4F9OC2H5 59
HFE-43-10pccc124 H-Galden 1040x HG-11 CHF2OCF2OC2F4OCHF2 1,870
HFE-236ca12 HG-10 CHF2OCF2OCHF2 2,800
HFE-338pcc13 HG-01 CHF2OCF2CF2OCHF2 1,500
HFE-347mmy1 CF32CFOCH3 343
2,2,3,3,3-pentafluoropropanol CF3CF2CH2OH 42
bistrifluoromethyl-methanol CF32CHOH 195
HFE-227ea CF3CHFOCF3 1,540
HFE-236ea2 desfluoran CHF2OCHFCF3 989
HFE-236fa CF3CH2OCF3 487
HFE-245fa1 CHF2CH2OCF3 286
HFE 263fb2 CF3CH2OCH3 11
HFE-329 mcc2 CHF2CF2OCF2CF3 919
HFE-338 mcf2 CF3CH2OCF2CF3 552
HFE-338mmz1 CF32CHOCHF2 380
HFE-347 mcf2 CHF2CH2OCF2CF3 374
HFE-356 mec3 CH3OCF2CHFCF3 101
HFE-356mm1 CF32CHOCH3 27
HFE-356pcf2 CHF2CH2OCF2CHF2 265
HFE-356pcf3 CHF2OCH2CF2CHF2 502
HFE 365 mcf3 CF3CF2CH2OCH3 11
HFE-374pc2 CHF2CF2OCH2CH3 557
- CF24CH OH- 73
Other perfluorinated compounds
Chemical name Chemical formula Global warming potential
perfluoropolymethylisopropyl-ether PFPMIE CF3OCFCF3CF2OCF2OCF3 10,300
nitrogen trifluoride NF3 17,200
trifluoromethyl sulphur pentafluoride SF5CF3 17,700
perfluorocyclopropane c-C3F6 17,340