Environment Agency
February 6
15:41
2024
If you work with ozone-depleting substances (ODS), you must followguidance forODS users, producers and traders.
You must not use ODS in new equipment or to service existing equipment, unless they are recycled halons for critical uses. You can still use equipment that contains ODS as long as it is not leaking.
The ozone-depleting potential values in the following tables are estimates and are reviewed regularly.
Group 1
| Industrial designation | Chemical formula | Chemical name (common name) | Ozone-depleting potential |
|---|---|---|---|
| CFC-11 | CFCl3 | Trichlorofluoromethane | 1.0 |
| CFC-12 | CF2Cl2 | Dichlorodifluoromethane | 1.0 |
| CFC-113 | C2F3Cl3 | Trichlorotrifluoroethane | 0.8 |
| CFC-114 | C2F4Cl2 | Dichlorotetrafluoroethane | 1.0 |
| CFC-115 | C2F5Cl | Chloropentafluoroethane | 0.6 |
Group 2
| Industrial designation | Chemical formula | Chemical name (common name) | Ozone-depleting potential |
|---|---|---|---|
| CFC-13 | CF3Cl | Chlorotrifluoromethane | 1.0 |
| CFC-111 | C2FCl5 | Pentachlorofluoroethane | 1.0 |
| CFC-112 | C2F2Cl4 | Tetrachlorodifluoroethane | 1.0 |
| CFC-211 | C3FCl7 | Heptachlorofluoropropane | 1.0 |
| CFC-212 | C3F2Cl6 | Hexachlorodifluoropropane | 1.0 |
| CFC-213 | C3F3Cl5 | Pentachlorotrifluoropropane | 1.0 |
| CFC-214 | C3F4Cl4 | Tetrachlorotetrafluoropropane | 1.0 |
| CFC-215 | C3F5Cl3 | Trichloropentafluoropropane | 1.0 |
| CFC-216 | C3F6Cl2 | Dichlorohexafluoropropane | 1.0 |
| CFC-217 | C3F7Cl | Chloroheptafluoropropane | 1.0 |
Group 3
| Industrial designation | Chemical formula | Chemical name (common name) | Ozone-depleting potential |
|---|---|---|---|
| halon-1211 | CF2BrCl | Bromochlorodifluoromethane | 3.0 |
| halon-1301 | CF3Br | Bromotrifluoromethane | 10.0 |
| halon-2402 | C2F4Br2 | Dibromotetrafluoroethane | 6.0 |
Group 4
| Industrial designation | Chemical formula | Chemical name (common name) | Ozone-depleting potential |
|---|---|---|---|
| CTC | CCl4 | Tetrachloromethane (carbon tetrachloride) | 1.1 |
Group 5
| Industrial designation | Chemical formula | Chemical name (common name) | Ozone-depleting potential |
|---|---|---|---|
| 1,1,1-TCA | C2H3Cl3 (this formula does not refer to 1,1,2-trichloroethane) | 1,1,1-Trichloroethane (methylchloroform) | 0.1 |
Group 6
| Industrial designation | Chemical formula | Chemical name (common name) | Ozone-depleting potential |
|---|---|---|---|
| methyl bromide | CH3Br | Bromomethane | 0.6 |
Group 7
| Industrial designation | Chemical formula | Chemical name (common name) | Ozone-depleting potential |
|---|---|---|---|
| HBFC-21 B2 | CHFBr2 | Dibromofluoromethane | 1.00 |
| HBFC-22 B1 | CHF2Br | Bromodifluoromethane | 0.74 |
| HBFC-31 B1 | CH2FBr | Bromofluoromethane | 0.73 |
| HBFC-121 B4 | C2HFBr4 | Tetrabromofluoroethane | 0.8 |
| HBFC-122 B3 | C2HF2Br3 | Tribromodifluoroethane | 1.8 |
| HBFC-123 B2 | C2HF3Br2 | Dibromotrifluoroethane | 1.6 |
| HBFC-124 B1 | C2HF4Br | Bromotetrafluoroethane | 1.2 |
| HBFC-131 B3 | C2H2FBr3 | Tribromofluoroethane | 1.1 |
| HBFC-132 B2 | C2H2F2Br2 | Dibromodifluoroethane | 1.5 |
| HBFC-133 B1 | C2H2F3Br | Bromotrifluoroethane | 1.6 |
| HBFC-141 B2 | C2H3FBr2 | Dibromofluoroethane | 1.7 |
| HBFC-142 B1 | C2H3F2Br | Bromodifluoroethane | 1.1 |
| HBFC-151 B1 | C2H4FBr | Bromofluoroethane | 0.1 |
| HBFC-221 B6 | C3HFBr6 | Hexabromofluoropropane | 1.5 |
| HBFC-222 B5 | C3HF2Br5 | Pentabromodifluoropropane | 1.9 |
| HBFC-223 B4 | C3HF3Br4 | Tetrabromotrifluoropropane | 1.8 |
| HBFC-224 B3 | C3HF4Br3 | Tribromotetrafluoropropane | 2.2 |
| HBFC-225 B2 | C3HF5Br2 | Dibromopentafluoropropane | 2.0 |
| HBFC-226 B1 | C3HF6Br | Bromohexafluoropropane | 3.3 |
| HBFC-231 B5 | C3H2FBr5 | Pentabromofluoropropane | 1.9 |
| HBFC-232 B4 | C3H2F2Br4 | Tetrabromodifluoropropane | 2.1 |