R125
CertiFlow is a record system for refrigerants, and works with a GWP of 3500 for R125 — the value fixed on every booking.
Pentafluorethaan
The numbers
GWP (AR4, 100-year)
3,500
Family
HFC
Single compound
Safety class
A1
Formula: CHF2CF3
Status
Restricted for servicing
Use for servicing existing equipment is restricted; recharging is subject to conditions.
From kilograms to obligation
What a given charge means for the CO₂ equivalent and for the check interval.
| Charge | CO₂ equivalent | Leak check |
|---|---|---|
| 1.43 kg | 5.005 t | At least every 12 months |
| 2 kg | 7 t | At least every 12 months |
| 14.29 kg | 50.015 t | At least every 6 months |
| 25 kg | 87.5 t | At least every 6 months |
| 142.86 kg | 500.01 t | At least every 3 months |
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.