Appendix 1 - ODP values for ozone-depleting....., Danish Environmental Protection Agency

Ozone depleting substances and the greenhouse gases HFCs, PFCs and SF₆

Appendix 1 - ODP values for ozone-depleting substances and GWP values for clean greenhouse gases

Table 1.a
Ozone-depleting substances, their chemical formulas and ODP values. Regulated by the Montreal Protocol.

Substance	Chemical formula	ODP values
CFCs CFC-11 CFC-12 CFC-113 CFC-115 Other CFCs	CFCl₃ CF₂Cl₂ C₂F₃Cl₃ C₂F₅Cl -	1.0 1.0 0.8 0.6 -
Tetrachloromethane	CCl₄	1.1
1,1,1-trichloroethane	CH₃CCl₃	0.1
Halons Halon-1301 Halon-1211 Halon-2402	CF₃Br CF₂BrCl CF₂BrCF₂Br	10 3 6
Methylbromide	CH₃Br	0.6 ⁽¹⁾
HCFCs HCFC-22 HCFC-123 HCFC-141 b HCFC-142 b	CHF₂Cl C₂H₃FCl₂ C₂H₃F₂Cl -	0.055 0.11 0.065


⁽¹⁾	Changed from 0.7 to 0.6 at the 7^th Meeting of the Parties to the Montreal Protocol, December, 1995. 0.6 is used in the determinations for 1996 and 1997.

Table 1.b
Pure⁽¹⁾ greenhouse gases, their chemical formulas and GWP values, stipulated in the Kyoto Protocol.

Substance name	Chemical formula	GWP value
HFCs HFC-32 HFC-125 HFC-134 a HFC-143 a HFC-152 a HFC-245 HFC-365 HFC-404 a⁽²⁾ HFC-401a⁽³⁾ HFC-402a⁽⁴⁾ HFC-407c⁽⁵⁾ HFC-408a⁽⁶⁾ HFC-409a⁽⁷⁾ HFC-410a⁽⁸⁾ HFC-507a⁽⁹⁾	CH₂FH₂ C₂HF5 CF₃CFH₂ C₂H₃F₃ CF₂HCH₃ - -	650 2,800 1,300 3,800 140 950 890 3,260 18 1,680 1,525 1,030 0 1,725 3,300
Sulphurhexafluoride	SF₆	23,900
Perfluorinated hydrocarbons Tetrafluoromethane (perfluoromethane) Fluoroethane (perfluoroethane) Fluoropropane (perfluoropropane) Fluorocyclobutane (perfluorocyclobutane) Fluorohexane (perfluorohexane)	CF₄ C₂F₆ C₃F₈ C-C₄F₈ C₆F₁₄	6,500 9,200 7,000 8,700 7,400


(1)	Not having an ozone-depleting effect.
(2)	Mixture consisting of 52% HFC-143a, 44% HFC-125 and 4% HFC-134a. The GWP value is determined from this.
(3)	Mixture consisting of 53% HCFC-22, 13% HFC-152a and 34% HCFC-124. The GWP value is determined from this.
(4)	Mixture consisting of 38% HCFC-22, 60% HFC-125 and 2% propane. The GWP value is determined from this.
(5)	Mixture consisting of 25% HFC 125, 52% HFC 134a, and 23% HFC 32. The GWP value is determined from this.
(6)	Mixture consisting of 46% HFC 143a and 7% HFC 125. The GWP value is determined from this.
(7)	A HFCFC mixture consisting entirely of HCFCs, where the GWP value – in accordance with the climate convention guidelines – is 0, since the mixture does not contain greenhouse gases. The real GWP value is 1,440.
(8)	Mixture consisting of 50% HFC 32 and 50% HFC-125.
(9)	Mixture consisting of 50% HFC 125 and 50% HFC 143a. The GWP value is determined from this.