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Refrigeration Systems 313

Table 11-3A
Standard Designation of Refrigerants (ASHRAE Standard 34)

Refrigerant Chemical Name or Chemical Refrigerant Chemical Name or Chemical
Number Composition (% by mass) Formula Number Composition (% by mass) Formula
Methane Series Zeotropes (Continued)
10 tetrachloromethane (carbon tetrachloride) CCl 4 403B R290/22/218 (5/56/39)
11 trichlorofluoromethane CCl 3 F 404A R125/143a/134a(44/52/4)
12 dichlorodifluoromethane CCl 2 F 2 405A R22/152a/142b/C318 (45/7/5.5/42.5)
12B1 bromochlorodifluoromethane CBrClF 2 406A R22/600a/142b (55/4 /41)
12B2 dibromodifluoromethane CBr 2 F 2 407A R32/125/134a (20/40/40)
13 chlorotrifluoromethane CClF 3 407B R32/125/134a (10/70/20)
13B1 bromotrifluoromethane CBrF 3 407C R32/125/134a (23/25/52)
14 tetrafluoromethane (carbon tetrafluoride) CF 4 407D R32/125/134a (15/15/70)
20 trichlorormethane (chloroform) CHCl 3 408A R125/143a/22 (7/46/47)
21 dichlorofluoromethane CHCl 2 F 409A R22/124/142b (60/25/15)
22 chlorodifluoromethane CHClF 2 409B R22/124/142b (65/25/10)
22B1 bromodifluoromethane CHBrF 2 410A R32/125 (50/50)
23 trifluoromethane CHF 3 410B R32/125 (45/55)
30 dichloromethane (methylene chloride) CH 2 Cl 2 411A R1270/22/152a (1.5/87.5/11.0)
31 chlorofluoromethane CH 2 ClF 411B R1270/22/152a (3/94/3)
32 difluoromethane (methylene fluoride) CH 2 F 2 412A R22/218/142b (70/5/25)
40 chloromethane (methyl chloride) CH 3 Cl Azeotropic Blends (% by mass)
41 fluoromethane (methyl fluoride) CH 3 F 500 R12/152a (73.8/26 .2)
50 methane CH 4 501 R22/12 (75.0/25.0)*
Ethane Series 502 R22/115 (48.8/51.2)
110 hexachloroethane CCl 3 CCl 3 503 R23/13 (40.1/59.9)
111 pentachlorofluoroethane CCl 3 CCl 2 F 504 R32/115 (48.2/51.8)
112 1,1,2,2-tetrachloro-1,2-difluoroethane CCl 2 FCCl 2 F 505 R12/31 (78.0/22.0)*
112a 1,1,1,2-tetrachloro-2,2-difluoroethane CCl 3 CClF 2 506 R31/114 (55.1/44 .9)
113 1,1,2-trichloro-1,2,2-trifluoroethane CCl 2 FCClF 2 507A R125/143a (50/50)
113a 1,1,1-trichloro-2,2,2-trifluoroethane CCl 3 CF 3 508A R23/116 (39/61)
114 1,2-dichloro-1,1,2,2-tetrafluoroethane CClF 2 CClF 2 508B R23/116 (46/54)
114a 1,1-dichloro-1,2,2,2-tetrafluoroethane CCl 2 FCF 3 509A R22/218 (44/56)
114B2 1,2-dibromo-1,1,2,2-tetrafluoroethane CBrF 2 CBrF 2 Miscellaneous Organic Compounds
115 chloropentafluoroethane CClF 2 CF 3 Hydrocarbons
116 hexafluoroethane CF 3 CF 3 600 butane CH 3 CH 2 CH 2 CH 3
120 pentachloroethane CHCl 2 CCl 3 600a 2-methyl propane (isobutane) CH(CH 3 ) 3
123 2,2-dichloro-1,1,1-trifluoroethane CHCl 2 CF 3 Oxygen Compounds
123a 1,2-dichloro-1,1,2-trifluoroethane CHClFCClF 2 610 ethyl ether C 2 H 5 OC 2 H 5
124 2-chloro-1,1,1,2-tetrafluoroethane CHClFCF 3 611 methyl formate HCOOCH 3
124a 1-chloro-1,1,2,2-tetrafluoroethane CHF 2 CClF 2 Sulfur Compounds
125 pentafluoroethane CHF 2 CF 3 620 (Reserved for future assignment)
133a 2-chloro-1,1,1-trifluoroethane CH 2 ClCF 3 Nitrogen Compounds
134a 1,1,1,2-tetrafluoroethane CH 2 FCF 3 630 methyl amine CH 3 NH 2
140a 1,1,1-trichloroethane (methyl chloroform) CH 3 CCl 3 631 ethyl amine C 2 H 5 NH 2
141b 1,1-dichloro-1-fluoroethane CCl 2 FCH 3 Inorganic Compounds
142b 1-chloro-1,1-difluoroethane CClF 2 CH 3 702 hydrogen H 2
143a 1,1,1-trifluoroethane CF 3 CH 3 704 helium He
150a 1,1-dichloroethane CHCl 2 CH 3 717 ammonia NH 3
152a 1,1-difluoroethane CHF 2 CH 3 718 water H 2 O
160 chloroethane (ethyl chloride) CH 3 CH 2 Cl 720 neon Ne
170 ethane CH 3 CH 3 728 nitrogen N 2
Propane Series 732 oxygen O 2
216ca 1,3-dichloro-1,1,2,2,3,3-hexafluoropropane CClF 2 CF 2 CClF 2 740 argon Ar
218 octafluoropropane CF 3 CF 2 CF 3 744 carbon dioxide CO 2
245cb 1,1,1,2,2-pentafluoropropane CF 3 CF 2 CH 3 744A nitrous oxide N 2 O
290 propane CH 3 CH 2 CH 3 764 sulfur dioxide SO 2
Cyclic Organic Compounds Unsaturated Organic Compounds
C316 1,2-dichloro-1,2,3,3,4,4-hexafluorocyclobutane C 4 Cl 2 F 6 1112a 1,1-dichloro-2,2-difluoroethene CCl 2 CF 2
C317 chloroheptafluorocyclobutane C 4 ClF 7 1113 1-chloro-1,2,2-trifluoroethene CClF CF 2
C318 octafluorocyclobutane C 4 F 8 1114 tetrafluoroethene CF 2 CF 2
Zeotropic Blends (% by mass) 1120 trichloroethene CHCl CCl 2
400 R12/114 (must be specified) 1130 1,2-dichloroethene (trans) CHCl CHCl
401A R22/152a/124 (53/13/34) 1132a 1,1 difluoroethene (vinylidene fluoride) CF 2 CH 2
401B R22/152a/124 (61/11/28) 1140 1-chloroethene (vinyl chloride) CHCl CH 2
401C R22/152a/124 (33/15/52) 1141 1-fluoroethene (vinyl fluoride) CHF-CH 2
402A R125/290/22 (60/2/38) 1150 ethene (ethylene) CH 2 CH 2
402B R125/290/22 (38/2/60) 1270 propene (propylene) CH 3 CH CH 2
403A R290/22/218 (5/75/20)
*The exact composition of this azeotrope is in question.
Used by permission: 1997 ASHRAE Handbook, I-P Ed., Fundamentals, Table 1, p. 18.2, ©1997. American Society of Heating, Refrigerating, and Air Conditioning Engineers, Inc. All rights reserved.