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Department of Climate Change, Energy, Enviroment and Water

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  1. Home
  2. Environment
  3. Environment protection
  4. Ozone Depleting Substances and Synthetic Greenhouse Gases
  5. Refrigeration and airconditioning
  6. Global warming potential values of hydrofluorocarbon refrigerants

Sidebar first - EN - Protection

  • Refrigeration and airconditioning
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    • Safety considerations
    • List of HFC GWP values
    • New rules on charging RAC equipment

Global warming potential values of hydrofluorocarbon refrigerants

Here are lists of HFCs and HFC blends, and their global warming potentials (GWP). For the purposes of the Ozone Protection and Synthetic Greenhouse Gas Management Act 1989 and the Ozone Protection and Synthetic Greenhouse Gas Management Regulations 1995, 100-year global warming potential is taken from the Intergovernmental Panel on Climate Change (IPCC) fourth assessment report, 2007 (AR4) – the same as used in the Montreal Protocol on Substances that Deplete the Ozone Layer.

HFCs
Code Substance Name Chemical Name Chemical Formula GWP (AR4)
R-125 HFC-125 Pentafluoroethane CHF2CF3 3,500
R-134A HFC-134a Tetrafluoroethane CH2FCF3 1,430
R-143A HFC-143a Trifluoroethane CF3CH3 4,470
R-152A HFC-152a Difluoroethane CH3CHF2 124
R-227EA HFC-227EA Heptafluoropropane CF3CHFCF3 3,220
R-23 HFC-23 Trifluoromethane / Fluoroform CHF3 14,800
R-236CB HFC-236CB   CH2FCF2CF3 1,340
R-236EA HFC-236EA   CHF2CHFCF3 1,370
R-236FA HFC-236FA Hexafluoropropane CF3CH2CF3 9,810
R-245CA HFC-245CA   CH2FCF2CHF2 693
R-245FA HFC-245FA Pentafluoropropane CHF2CH2CF3 1,030
R-32 HFC-32 Difluoromethane CH2F2 675
R-365MFC HFC-365MFC Pentafluorobutane CF3CH2CF2CH3 794
R-41 HFC-41 Fluoromethane (or Methyl fluoride) CH3F 92
R-43-10MEE HFC-43-10MEE Decafluoropentane CF3CHFCHFCF2CF3 1,640

Some refrigerants are not single chemicals but a mixture of two or more chemicals, called blends. HFC blends may contain only HFCs, or HFCs mixed with other chemicals. For example, R‑410A is made up of 50% R‑32 and 50% R‑125.

HFC blends
Code HFC Blend Name GWP (AR4)
R-404A HFC-404A 3,922
R-407A HFC-407A 2,107
R-407B HFC-407B 2,804
R-407C HFC-407C 1,774
R-407D HFC-407D 1,627
R-407E HFC-407E 1,552
R-407F HFC-407F 1,825
R-407G HFC-407G 1,463
R-410A HFC-410A 2,088
R-410B HFC-410B 2,229
R-413A HFC-413A 2,053
R-417A HFC-417A 2,346
R-417B HFC-417B 3,027
R-417C HFC-417C 1,809
R-419A HFC-419A 2,967
R-419B HFC-419B 2,384
R-421A HFC-421A 2,631
R-421B HFC-421B 3,190
R-422A HFC-422A 3,143
R-422B HFC-422B 2,526
R-422C HFC-422C 3,085
R-422D HFC-422D 2,729
R-422E HFC-422E 2,592
R-423A HFC-423A 2,280
R-424A HFC-424A 2,440
R-425A HFC-425A 1,505
R-426A HFC-426A 1,508
R-427A HFC-427A 2,138
R-428A HFC-428A 3,607
R-429A HFC-429A 13
R-430A HFC-430A 94
R-431A HFC-431A 36
R-434A HFC-434A 3,245
R-435A HFC-435A 26
R-437A HFC-437A 1,805
R-438A HFC-438A 2,264
R-439A HFC-439A 1,983
R-440A HFC-440A 144
R-442A HFC-442A 1,888
R-444A HFC-444A 87
R-444B HFC-444B 293
R-445A HFC-445A 129
R-446A HFC-446A 459
R-447A HFC-447A 582
R-447B HFC-447B 739
R-448A HFC-448A 1,386
R-449A HFC-449A 1,396
R-449B HFC-449B 1,411
R-449C HFC-449C 1,250
R-450A HFC-450A 601
R-451A HFC-451A 146
R-451B HFC-451B 160
R-452A HFC-452A 2,139
R-452B HFC-452B 697
R-452C HFC-452C 2,219
R-453A HFC-453A 1,765
R-454A HFC-454A 236
R-454B HFC-454B 465
R-454C HFC-454C 145
R-455A HFC-455A 145
R-456A HFC-456A 684
R-457A HFC-457A 136
R-458A HFC-458A 1,650
R-500 HFC-500 8,077
R-503 HFC-503 14,560
R-507A HFC-507A 3,985
R-508A HFC-508A 13,214
R-508B HFC-508B 13,396
R-512A HFC-512A 189
R-513A HFC-513A 629
R-513B HFC-513B 593
R-515A HFC-515A 386

The following refrigerants are not controlled under the Ozone Protection and Synthetic Greenhouse Gas Management legislation; provided for reference. All have a GWP value of less than 5.

Hydrocarbons or hydrocarbon blends
Code Substance Name Chemical Name Chemical Formula
R-1270 HC-1270 Propene / Propylene C3H6
R-12A HC-12A (Hydrocarbon blend)  
R-170 HC-170 Ethane C2H6
R-22A HC-22A (Hydrocarbon blend)  
R-290 HC-290 Propane C3H8
R-502A HC-502A (Hydrocarbon blend)  
R-600 HC-600 Butane C4H10
R-600A HC-600a Isobutane C4H10
R-601A HC-601a Isopentane ((CH3)2 CH--CH2 --CH3)
R-717 HC-717 Ammonia NH3
R-744 HC-744 Carbon Dioxide CO2
Hydrofluoroolefins (HFOs)
Code Substance Name Chemical Name Chemical Formula
R-1234ze(E) HFO-1234ze   1,3,3,3 Tetrafluoropropene
R-1234yf HFO-1234yf   2,3,3,3 Tetrafluoropropene
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Last updated: 10 October 2021

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