Annex I CONTROLLED SUBSTANCES

United Kingdom

Group	Substance			Ozone-depleting potential^f1
The figures relating to ozone-depleting potential are estimates based on existing knowledge and will be reviewed and revised periodically in the light of decisions taken by the Parties.
This formula does not refer to 1,1,2-trichloroethane.
Identifies the most commercially viable substance as prescribed in the Protocol.
Group I	CFCl₃	CFC-11	Trichlorofluoromethane	1,0
	CF₂Cl₂	CFC-12	Dichlorodifluoromethane	1,0
	C₂F₃Cl₃	CFC-113	Trichlorotrifluoroethane	0,8
	C₂F₄Cl₂	CFC-114	Dichlorotetrafluoroethane	1,0
	C₂F₅Cl	CFC-115	Chloropentafluoroethane	0,6
Group II	CF₃Cl	CFC-13	Chlorotrifluoromethane	1,0
	C₂FCl₅	CFC-111	Pentachlorofluoroethane	1,0
	C₂F₂Cl₄	CFC-112	Tetrachlorodifluoroethane	1,0
	C₃FCl₇	CFC-211	Heptachlorofluoropropane	1,0
	C₃F₂Cl₆	CFC-212	Hexachlorodifluoropropane	1,0
	C₃F₃Cl₅	CFC-213	Pentachlorotrifluoropropane	1,0
	C₃F₄Cl₄	CFC-214	Tetrachlorotetrafluoropropane	1,0
	C₃F₅Cl₃	CFC-215	Trichloropentafluoropropane	1,0
	C₃F₆Cl₂	CFC-216	Dichlorohexafluoropropane	1,0
	C₃F₇Cl	CFC-217	Chloroheptafluoropropane	1,0
Group III	CF₂BrCl	halon-1211	Bromochlorodifluoromethane	3,0
	CF₃Br	halon-1301	Bromotrifluoromethane	10,0
	C₂F₄Br₂	halon-2402	Dibromotetrafluoroethane	6,0
Group IV	CCl₄	CTC	Tetrachloromethane (carbon tetrachloride)	1,1
Group V	C₂H₃Cl₃ ^f2	1,1,1-TCA	1,1,1-Trichloroethane (methylchloroform)	0,1
Group VI	CH₃Br	methyl bromide	Bromomethane	0,6
Group VII	CHFBr₂	HBFC-21 B2	Dibromofluoromethane	1,00
	CHF₂Br	HBFC-22 B1	Bromodifluoromethane	0,74
	CH₂FBr	HBFC-31 B1	Bromofluoromethane	0,73
	C₂HFBr₄	HBFC-121 B4	Tetrabromofluoroethane	0,8
	C₂HF₂Br₃	HBFC-122 B3	Tribromodifluoroethane	1,8
	C₂HF₃Br₂	HBFC-123 B2	Dibromotrifluoroethane	1,6
	C₂HF₄Br	HBFC-124 B1	Bromotetrafluoroethane	1,2
	C₂H₂FBr₃	HBFC-131 B3	Tribromofluoroethane	1,1
	C₂H₂F₂Br₂	HBFC-132 B2	Dibromodifluoroethane	1,5
	C₂H₂F₃Br	HBFC-133 B1	Bromotrifluoroethane	1,6
	C₂H₃FBr₂	HBFC-141 B2	Dibromofluoroethane	1,7
	C₂H₃F₂Br	HBFC-142 B1	Bromodifluoroethane	1,1
	C₂H₄FBr	HBFC-151 B1	Bromofluoroethane	0,1
	C₃HFBr₆	HBFC-221 B6	Hexabromofluoropropane	1,5
	C₃HF₂Br₅	HBFC-222 B5	Pentabromodifluoropropane	1,9
	C₃HF₃Br₄	HBFC-223 B4	Tetrabromotrifluoropropane	1,8
	C₃HF₄Br₃	HBFC-224 B3	Tribromotetrafluoropropane	2,2
	C₃HF₅Br₂	HBFC-225 B2	Dibromopentafluoropropane	2,0
	C₃HF₆Br	HBFC-226 B1	Bromohexafluoropropane	3,3
	C₃H₂FBr₅	HBFC-231 B5	Pentabromofluoropropane	1,9
	C₃H₂F₂Br₄	HBFC-232 B4	Tetrabromodifluoropropane	2,1
	C₃H₂F₃Br₃	HBFC-233 B3	Tribromotrifluoropropane	5,6
	C₃H₂F₄Br₂	HBFC-234 B2	Dibromotetrafluoropropane	7,5
	C₃H₂F₅Br	HBFC-235 B1	Bromopentafluoropropane	1,4
	C₃H₃FBr₄	HBFC-241 B4	Tetrabromofluoropropane	1,9
	C₃H₃F₂Br₃	HBFC-242 B3	Tribromodifluoropropane	3,1
	C₃H₃F₃Br₂	HBFC-243 B2	Dibromotrifluoropropane	2,5
	C₃H₃F₄Br	HBFC-244 B1	Bromotetrafluoropropane	4,4
	C₃H₄FBr₃	HBFC-251 B1	Tribromofluoropropane	0,3
	C₃H₄F₂Br₂	HBFC-252 B2	Dibromodifluoropropane	1,0
	C₃H₄F₃Br	HBFC-253 B1	Bromotrifluoropropane	0,8
	C₃H₅FBr₂	HBFC-261 B2	Dibromofluoropropane	0,4
	C₃H₅F₂Br	HBFC-262 B1	Bromodifluoropropane	0,8
	C₃H₆FBr	HBFC-271 B1	Bromofluoropropane	0,7
Group VIII	CHFCl₂	HCFC-21^f3	Dichlorofluoromethane	0,040
	CHF₂Cl	HCFC-22	Chlorodifluoromethane	0,055
	CH₂FCl	HCFC-31	Chlorofluoromethane	0,020
	C₂HFCl₄	HCFC-121	Tetrachlorofluoroethane	0,040
	C₂HF₂Cl₃	HCFC-122	Trichlorodifluoroethane	0,080
	C₂HF₃Cl₂	HCFC-123	Dichlorotrifluoroethane	0,020
	C₂HF₄Cl	HCFC-124	Chlorotetrafluoroethane	0,022
	C₂H₂FCl₃	HCFC-131	Trichlorofluoroethane	0,050
	C₂H₂F₂Cl₂	HCFC-132	Dichlorodifluoroethane	0,050
	C₂H₂F₃Cl	HCFC-133	Chlorotrifluoroethane	0,060
	C₂H₃FCl₂	HCFC-141	Dichlorofluoroethane	0,070
	CH₃CFCl₂	HCFC-141b	1,1-Dichloro-1-fluoroethane	0,110
	C₂H₃F₂Cl	HCFC-142	Chlorodifluoroethane	0,070
	CH₃CF₂Cl	HCFC-142b	1-Chloro-1,1-difluoroethane	0,065
	C₂H₄FCl	HCFC-151	Chlorofluoroethane	0,005
	C₃HFCl₆	HCFC-221	Hexachlorofluoropropane	0,070
	C₃HF₂Cl₅	HCFC-222	Pentachlorodifluoropropane	0,090
	C₃HF₃Cl₄	HCFC-223	Tetrachlorotrifluoropropane	0,080
	C₃HF₄Cl₃	HCFC-224	Trichlorotetrafluoropropane	0,090
	C₃HF₅Cl₂	HCFC-225	Dichloropentafluoropropane	0,070
	CF₃CF₂CHCl₂	HCFC-225ca	3,3-Dichloro-1,1,1,2,2-pentafluoropropane	0,025
	CF₂ClCF₂CHClF	HCFC-225cb	1,3-Dichloro-1,1,2,2,3-pentafluoropropane	0,033
	C₃HF₆Cl	HCFC-226	Chlorohexafluoropropane	0,100
	C₃H₂FCl₅	HCFC-231	Pentachlorofluoropropane	0,090
	C₃H₂F₂Cl₄	HCFC-232	Tetrachlorodifluoropropane	0,100
	C₃H₂F₃Cl₃	HCFC-233	Trichlorotrifluoropropane	0,230
	C₃H₂F₄Cl₂	HCFC-234	Dichlorotetrafluoropropane	0,280
	C₃H₂F₅Cl	HCFC-235	Chloropentafluoropropane	0,520
	C₃H₃FCl₄	HCFC-241	Tetrachlorofluoropropane	0,090
	C₃H₃F₂Cl₃	HCFC-242	Trichlorodifluoropropane	0,130
	C₃H₃F₃Cl₂	HCFC-243	Dichlorotrifluoropropane	0,120
	C₃H₃F₄Cl	HCFC-244	Chlorotetrafluoropropane	0,140
	C₃H₄FCl₃	HCFC-251	Trichlorofluoropropane	0,010
	C₃H₄F₂Cl₂	HCFC-252	Dichlorodifluoropropane	0,040
	C₃H₄F₃Cl	HCFC-253	Chlorotrifluoropropane	0,030
	C₃H₅FCl₂	HCFC-261	Dichlorofluoropropane	0,020
	C₃H₅F₂Cl	HCFC-262	Chlorodifluoropropane	0,020
	C₃H₆FCl	HCFC-271	Chlorofluoropropane	0,030
Group IX	CH₂BrCl	BCM	Bromochloromethane	0,12

Annotations

Footnotes

f1: The figures relating to ozone-depleting potential are estimates based on existing knowledge and will be reviewed and revised periodically in the light of decisions taken by the Parties.
f2: This formula does not refer to 1,1,2-trichloroethane.
f3: Identifies the most commercially viable substance as prescribed in the Protocol.