R12
CertiFlow is a record system for refrigerants, and works with a GWP of 10200 for R12 — the value fixed on every booking.
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The numbers
GWP (AR4, 100-year)
10,200
Family
CFC
Single compound
Safety class
A1
Formula: CCl2F2
Status
Prohibited
May no longer be used. Any charge found must be recovered and processed.
From kilograms to obligation
What a given charge means for the CO₂ equivalent and for the check interval.
| Charge | CO₂ equivalent | Leak check |
|---|---|---|
| 2 kg | 20.4 t | This is an ozone-depleting substance. It falls under Regulation (EU) 2024/590 rather than the F-gas Regulation, and its use is largely prohibited. |
| 5 kg | 51 t | This is an ozone-depleting substance. It falls under Regulation (EU) 2024/590 rather than the F-gas Regulation, and its use is largely prohibited. |
| 10 kg | 102 t | This is an ozone-depleting substance. It falls under Regulation (EU) 2024/590 rather than the F-gas Regulation, and its use is largely prohibited. |
| 25 kg | 255 t | This is an ozone-depleting substance. It falls under Regulation (EU) 2024/590 rather than the F-gas Regulation, and its use is largely prohibited. |
Last checked: 2026-08-09 · F-gas regulation
Alternatives
Lower-GWP refrigerants used in comparable applications. An alternative is rarely a drop-in: safety class, pressure and oil can all differ.
In CertiFlow
When you book a charge with this refrigerant, the CO₂ equivalent is calculated using the GWP above and fixed at that moment. A later change to the table does not alter your history.
Start with your three most awkward customers
You do not have to migrate everything to find out whether this works. Put three installations in, have an engineer book a charge, and download the export. 30 days, no credit card, no automatic renewal.