RACA Journal August 2025 RACA_August2025 | Seite 28

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Feature
Table by Grant Laidlaw.
PHASE OUT PROCESS Ozone depleting substances
Developed countries
Developing countries
Chlorofluorocarbons( CFCs)
Phased out end of 1995
Phased out end of 2010( RSA end of 1995)
Halons
Phased out end of 1993
Phased out end of 2010
CCl4( Carbon tetrachloride)
Phased out end of 1995
Phased out end of 2010
CH3CCl3( Methyl chloroform)
Phased out end of 1995
Phased out end of 2015
Hydrochlorofluorocarbons( HCFCs)
Freeze from beginning of 1996 35 % reduction by 2004 75 % reduction by 2010 90 % reduction by 2015 Total phase out by 2020
Freeze in 2013 at a base level calculated as the average of 2009 and 2010 consumption levels 10 % reduction by 2015 35 % reduction by 2020 67.5 % reduction by 2025 Total phase out by 2030
Hydrobromofluorocarbons
Phased out end of 1995
Phased out end of 1995
( HBFCs)
Methyl bromide( CH3Br)( horticultural uses)
Freeze in 1995 at 1991 base level 25 % reduction by 1999 50 % reduction by 2001 70 %
Freeze in 2002 at average 1995-1998 base levels 20 % reduction by 2005 Phased out end of 2015
reduction by 2003 Phased out end of 2005
Bromochloromethane( CH2BrCl)
Phased out end of 2002
Phased out end of 2002
Hydrofluorocarbons( HFCs)
10 % reduction by 2019 30 % reduction by 2024 70 % reduction by 2029 80 % reduction by 2034 85 % reduction by 2036
Freeze in 2024 10 % reduction by 2029 30 % reduction by 2035 50 % reduction by 2040 80 % reduction by 2045

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RACA Journal I August 2025 www. refrigerationandaircon. co. za