Composition of Refrigerant Blends
The following tables show the percentage composition of refrigerant blends found acceptable, acceptable subject to narrowed use limits, or acceptable subject to use conditions). The specific determinations that apply to these blends are listed by end-use. In addition, a chronological list of SNAP updates is available from the hotline. If your browser is unable to display tables, please call the hotline for a free paper copy of these tables.
Unacceptable substitutesNote: SNAP-related information published in the Federal Register takes precedence over all information on this page.
Trade Name | ASHRAE
Number |
HCFCs | HFCs | HCs | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
22 | 124 | 142b | 32 | 125 | 134a | 152a | 227ea | Propane | Butane
(R-600) |
Isobutane
(R-600a) |
||
MP-39 | 401A | 53 | 34 | 13 | ||||||||
MP-66 | 401B | 61 | 28 | 11 | ||||||||
MP-52 | 401C | 33 | 52 | 15 | ||||||||
GHG | 406A | 55 | 41 | 4 | ||||||||
407D | 15 | 15 | 70 | |||||||||
FX-56 | 409A | 60 | 25 | 15 | ||||||||
Hot Shot | 414B | 50 | 39 | 9.5 | 1.5 | |||||||
GHG-X4 | 414A | 51 | 28.5 | 16.5 | 4 | |||||||
Choice Refrigerant | 420A | 12 | 88 | |||||||||
RS-24 (new composition) | 426A | 5.1 | 93 | 1.3 | 0.6 | |||||||
Freeze 12 | 20 | 80 | ||||||||||
Free Zone
(2% is a lubricant) |
19 | 79 | ||||||||||
FRIGC FR-12 | 39 | 59 | 2 | |||||||||
GHG-HP | 65 | 31 | 4 | |||||||||
GHG-X5 | 41 | 15 | 40 | 4 | ||||||||
KDD6 | Claimed as confidential business information |
Trade Name | ASHRAE
Number |
HCFC-22 | HFCs | HCs | ||||||
---|---|---|---|---|---|---|---|---|---|---|
32 | 125 | 134a | 143a | 152a | propane | isobutane | propylene | |||
HP-80 | 402A | 38 | 60 | 2 | ||||||
HP-81 | 402B | 60 | 38 | 2 | ||||||
HP-62, FX-70 | 404A | 44 | 4 | 52 | ||||||
KLEA 407A | 407A | 20 | 40 | 40 | ||||||
KLEA 407B | 407B | 10 | 70 | 20 | ||||||
FX-10 | 408A | 46 | 7 | 47 | ||||||
R-411A | 411A | 87.5 | 11 | 1.5 | ||||||
R-411B | 411B | 94 | 3 | 3 | ||||||
ICOR XLT1 | 422C | 82 | 15 | 3 | ||||||
AZ-50 | 507 | 50 | 50 | |||||||
G2018C | 95.5 | 1.5 | 3 |
Trade Name | ASHRAE
Number |
HFC-32 | HFC-125 | HFC-134a | HCF-143a | Propane | n-Butane | Isobutane | Isopentane |
---|---|---|---|---|---|---|---|---|---|
R-404A | 404A | 44 | 4 | 52 | |||||
KLEA 60, KLEA 407A | 407A | 20 | 40 | 40 | |||||
KLEA 407C, AC9000 | 407C | 23 | 25 | 52 | |||||
AZ-20, Puron, Suva 9100 | 410A | 50 | 50 | ||||||
AC9100 | 410B | 45 | 55 | ||||||
NU-22/ISCEON 59 | 417A | 46.6 | 50 | 3.4 | |||||
Choice R421A | 421A | 58 | 42 | ||||||
Choice 421B | 421B | 85 | 15 | ||||||
Isceon 79 | 422A | 85.1 | 11.5 | 3.4 | |||||
ICOR XAC1 | 422B | 55 | 42 | 3 | |||||
ICOR XLT1 | 422C | 45 | 82 | 15 | 3 | ||||
ISCEON MO29 | 422D | 65.1 | 31.5 | 3.4 | |||||
RS-44 (new composition) | 424A | 50.5 | 47.0 | 1.0 | 0.9 | 0.6 | |||
RS-24 (new composition) | 426A | 5.1 | 93 | 1.3 | 0.6 | ||||
Forane 427A | 427A | 15 | 25 | 50 | 10 | ||||
RS-52 | 428A | 77.5 | 20.0 | 0.6 | 1.9 | ||||
RS-45 | 434A | 63.2 | 16 | 18 | 2.8 | ||||
R-507A | 507A | 50 | 50 | ||||||
ICOR AT22 | 55 | 42.5 | 1 | 1.5 | |||||
KDD5 | Claimed as confidential business information |
Trade Name | ASHRAE
Number |
HCFC-22 | HFC-23 | HFC-152a | Propane | PFC-116
(perfluoroethane) |
PFC-218
(perfluoro- propane) |
---|---|---|---|---|---|---|---|
R-403B | 403B | 56 | 5 | 39 | |||
Klea 5R3 | 508A | 39 | 61 | ||||
Suva 95 | 508B | 46 | 54 | ||||
NARM-502 | 90 | 5 | 5 |