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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:

• produce goods that use gases with lower global warming potential
• identify compatible gases with lower global warming potential that can be used when servicing existing systems

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:

• calculate carbon dioxide equivalent of an F gas
• apply for quota to produce or import F gas
• record and report F gas (GWPs are expressed to 3 decimal places in the reporting template)

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
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