Annex I lists the fluorinated greenhouse gases that are defined in Article 2 of the F-Gas Regulation. It is split into 3 sections:
Section 1 on HFCs refers to hydrofluorocarbons.
HFCs are a family of chemicals that have characteristics that make them well suited to refrigeration. HFC refrigerants are used in a wide range of applications throughout the refrigeration, air-conditioning and heat pump markets.
HFCs have a very high GWP (global warming potential) which means that any HFCs emitted to the atmosphere have a strong impact on global warming. For this reason, the FGas Regulation is aimed at minimising emissions of HFCs.
Section 2 on PFCs refers to perfluorocarbons.
PFCs are a family of chemicals that have a small number of specialist applications. They are never used in isolation as refrigerants but a small number of refrigerant blends include a tiny proportion of PFCs in their formulation.
PFCs have a very high GWP (global warming potential) which means that any PFCs emitted to the atmosphere have a strong impact on global warming. For this reason, the FGas Regulation is aimed at minimising emissions of PFCs.
More information on PFCs can be found in ‘Learn about … PFCs’.
Section 3 on SF6 refers to Sulphur Hexafluoride
SF6 is used primarily as an electrical insulation in power transmission systems.
The Global Warming Potentials (GWPs) are referenced from the Fourth Assessment Report adopted by the Intergovernmental Panel on Climate Change. For more information, please consult ‘Learn about … Selecting and using GWP values for refrigerants’.