Refrigerants shall be classified in accordance with ASHRAE 34 as listed in Table 1103.1.
TABLE 1103.1 REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
(continued)
TABLE 1103.1‒continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
(continued)
TABLE 1103.1‒continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
(continued)
TABLE 1103.1‒continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
TABLE 1103.1 REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
CHEMICAL REFRIGERANT | FORMULA | CHEMICAL NAME OF BLEND | REFRIGERANT CLASSIFICATION | AMOUNT OF REFRIGERANT PER OCCUPIED SPACE | [F] DEGREES OF HAZARDa | |||
Pounds per 1,000 cubic feet | ppm | g/m3 | OELe | |||||
R-11d | CCl3F | trichlorofluoromethane | A1 | 0.39 | 1,100 | 6.2 | C1,000 | 2-0-0b |
R-12d | CCl2F2 | dichlorodifluoromethane | A1 | 5.6 | 18,000 | 90 | 1,000 | 2-0-0b |
R-13d | CClF3 | chlorotrifluoromethane | A1 | ‒ | ‒ | ‒ | 1,000 | 2-0-0b |
R-13B1d | CBrF3 | bromotrifluoromethane | A1 | ‒ | ‒ | ‒ | 1,000 | 2-0-0b |
R-14 | CF4 | tetrafluoromethane (carbon tetrafluoride) | A1 | 25 | 110,000 | 400 | 1,000 | 2-0-0b |
R-22 | CHClF2 | chlorodifluoromethane | A1 | 13 | 59,000 | 210 | 1,000 | 2-0-0b |
R-23 | CHF3 | trifluoromethane (fluoroform) | A1 | 7.3 | 41,000 | 120 | 1,000 | 2-0-0b |
R-32 | CH2F2 | difluoromethane (methylene fluoride) | A2f | 4.8 | 36,000 | 77 | 1,000 | 1-4-0 |
R-113d | CCl2FCClF2 | 1,1,2-trichloro-1,2,2-trifluoroethane | A1 | 1.2 | 2,600 | 20 | 1,000 | 2-0-0b |
R-114d | CClF2CClF2 | 1,2-dichloro-1,1,2,2-tetrafluoroethane | A1 | 8.7 | 20,000 | 140 | 1,000 | 2-0-0b |
R-115 | CClF2CF3 | chloropentafluoroethane | A1 | 47 | 120,000 | 760 | 1,000 | ‒ |
R-116 | CF3CF3 | hexafluoroethane | A1 | 34 | 97,000 | 550 | 1,000 | 1-0-0 |
R-123 | CHCl2CF3 | 2,2-dichloro-1,1,1-trifluoroethane | B1 | 3.5 | 9,100 | 57 | 50 | 2-0-0b |
R-124 | CHClFCF3 | 2-chloro-1,1,1,2-tetrafluoroethane | A1 | 3.5 | 10,000 | 56 | 1,000 | 2-0-0b |
R-125 | CHF2CF3 | pentafluoroethane | A1 | 23 | 75,000 | 370 | 1,000 | 2-0-0b |
R-134a | CH2FCF3 | 1,1,1,2-tetrafluoroethane | A1 | 13 | 50,000 | 210 | 1,000 | 2-0-0b |
R-141b | CH3CCl2F | 1,1-dichloro-1-fluoroethane | ‒ | 0.78 | 2,600 | 12 | 500 | 2-1-0 |
R-142b | CH3CClF2 | 1-chloro-1,1-difluoroethane | A2 | 5.1 | 20,000 | 83 | 1,000 | 2-4-0 |
R-143a | CH3CF3 | 1,1,1-trifluoroethane | A2f | 4.5 | 21,000 | 70 | 1,000 | 2-0-0b |
R-152a | CH3CHF2 | 1,1-difluoroethane | A2 | 2.0 | 12,000 | 32 | 1,000 | 1-4-0 |
R-170 | CH3CH3 | ethane | A3 | 0.54 | 7,000 | 8.7 | 1,000 | 2-4-0 |
R-E170 | CH3OCH3 | Methoxymethane (dimethyl ether) | A3 | 1.0 | 8,500 | 16 | 1,000 | ‒ |
R-218 | CF3CF2CF3 | octafluoropropane | A1 | 43 | 90,000 | 690 | 1,000 | 2-0-0b |
R-227ea | CF3CHFCF3 | 1,1,1,2,3,3,3-heptafluoropropane | A1 | 36 | 84,000 | 580 | 1,000 | ‒ |
R-236fa | CF3CH2CF3 | 1,1,1,3,3,3-hexafluoropropane | A1 | 21 | 55,000 | 340 | 1,000 | 2-0-0b |
R-245fa | CHF2CH2CF3 | 1,1,1,3,3-pentafluoropropane | B1 | 12 | 34,000 | 190 | 300 | 2-0-0b |
R-290 | CH3CH2CH3 | propane | A3 | 0.56 | 5,300 | 9.5 | 1,000 | 2-4-0 |
R-C318 | -(CF2)4- | octafluorocyclobutane | A1 | 41 | 80,000 | 660 | 1,000 | ‒ |
R-400d | zeotrope | R-12/114 (50.0/50.0) | A1 | 10 | 28,000 | 160 | 1,000 | 2-0-0b |
R-400d | zeotrope | R-12/114 (60.0/40.0) | A1 | 11 | 30,000 | 170 | 1,000 | |
R-401A | zeotrope | R-22/152a/124 (53.0/13.0/34.0) | A1 | 6.6 | 27,000 | 110 | 1,000 | 2-0-0b |
(continued)
TABLE 1103.1‒continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
CHEMICAL REFRIGERANT | FORMULA | CHEMICAL NAME OF BLEND | REFRIGERANT CLASSIFICATION | AMOUNT OF REFRIGERANT PER OCCUPIED SPACE | [F] DEGREES OF HAZARDa | |||
Pounds per 1,000 cubic feet | ppm | g/m3 | OELe | |||||
R-401B | zeotrope | R-22/152a/124 (61.0/11.0/28.0) | A1 | 7.2 | 30,000 | 120 | 1,000 | 2-0-0b |
R-401C | zeotrope | R-22/152a/124 (33.0/15.0/52.0) | A1 | 5.2 | 20,000 | 84 | 1,000 | 2-0-0b |
R-402A | zeotrope | R-125/290/22 (60.0/2.0/38.0) | A1 | 17 | 66,000 | 270 | 1,000 | 2-0-0b |
R-402B | zeotrope | R-125/290/22 (38.0/2.0/60.0) | A1 | 15 | 63,000 | 240 | 1,000 | 2-0-0b |
R-403A | zeotrope | R-290/22/218 (5.0/75.0/20.0) | A2 | 7.6 | 33,000 | 120 | 1,000 | 2-0-0b |
R-403B | zeotrope | R-290/22/218 (5.0/56.0/39.0) | A1 | 18 | 70,000 | 290 | 1,000 | 2-0-0b |
R-404A | zeotrope | R-125/143a/134a (44.0/52.0/4.0) | A1 | 31 | 130,000 | 500 | 1,000 | 2-0-0b |
R-405A | zeotrope | R-22/152a/142b/C318 (45.0/7.0/5.5/2.5) | ‒ | 16 | 57,000 | 260 | 1,000 | ‒ |
R-406A | zeotrope | R-22/600a/142b (55.0/4.0/41.0) | A2 | 4.7 | 21,000 | 25 | 1,000 | ‒ |
R-407A | zeotrope | R-32/125/134a (20.0/40.0/40.0) | A1 | 19 | 83,000 | 300 | 1,000 | 2-0-0b |
R-407B | zeotrope | R-32/125/134a (10.0/70.0/20.0) | A1 | 21 | 79,000 | 330 | 1,000 | 2-0-0b |
R-407C | zeotrope | R-32/125/134a (23.0/25.0/52.0) | A1 | 18 | 81,000 | 290 | 1,000 | 2-0-0b |
R-407D | zeotrope | R-32/125/134a (15.0/15.0/70.0) | A1 | 16 | 68,000 | 250 | 1,000 | 2-0-0b |
R-407E | zeotrope | R-32/125/134a (25.0/15.0/60.0) | A1 | 17 | 80,000 | 280 | 1,000 | 2-0-0b |
R-407F | zeotrope | R-32/125/134a (30.0/30.0/40.0) | A1 | 20 | 95,000 | 320 | 1,000 | ‒ |
R-408A | zeotrope | R-125/143a/22 (7.0/46.0/47.0) | A1 | 21 | 95,000 | 340 | 1,000 | 2-0-0b |
R-409A | zeotrope | R-22/124/142b (60.0/25.0/15.0) | A1 | 7.1 | 29,000 | 110 | 1,000 | 2-0-0b |
R-409B | zeotrope | R-22/124/142b (65.0/25.0/10.0) | A1 | 7.3 | 30,000 | 120 | 1,000 | 2-0-0b |
R-410A | zeotrope | R-32/125 (50.0/50.0) | A1 | 26 | 140,000 | 420 | 1,000 | 2-0-0b |
R-410B | zeotrope | R-32/125 (45.0/55.0) | A1 | 27 | 140,000 | 430 | 1,000 | 2-0-0b |
R-411A | zeotrope | R-127/22/152a (1.5/87.5/11.0) | A2 | 2.9 | 14,000 | 46 | 990 | ‒ |
R-411B | zeotrope | R-1270/22/152a (3.0/94.0/3.0) | A2 | 2.8 | 13,000 | 45 | 980 | ‒ |
R-412A | zeotrope | R-22/218/142b (70.0/5.0/25.0) | A2 | 5.1 | 22,000 | 82 | 1,000 | ‒ |
R-413A | zeotrope | R-218/134a/600a (9.0/88.0/3.0) | A2 | 5.8 | 22,000 | 94 | 1,000 | ‒ |
R-414A | zeotrope | R-22/124/600a/142b (51.0/28.5/4.0/16.5) | A1 | 6.4 | 26,000 | 100 | 1,000 | ‒ |
R-414B | zeotrope | R-22/124/600a/142b (50.0/39.0/1.5/9.5) | A1 | 6.0 | 23,000 | 95 | 1,000 | ‒ |
R-415A | zeotrope | R-22/152a (82.0/18.0) | A2 | 2.9 | 14,000 | 47 | 1,000 | ‒ |
R-415B | zeotrope | R-22/152a (25.0/75.0) | A2 | 2.1 | 12,000 | 34 | 1,000 | ‒ |
R-416A | zeotrope | R-134a/124/600 (59.0/39.5/1.5) | A1 | 3.9 | 14,000 | 62 | 1,000 | 2-0-0b |
R-417A | zeotrope | R-125/134a/600 (46.6/50.0/3.4) | A1 | 3.5 | 13,000 | 56 | 1,000 | 2-0-0b |
R-417B | zeotrope | R-125/134a/600 (79.0/18.3/2.7) | A1 | 4.3 | 15,000 | 70 | 1,000 | ‒ |
R-418A | zeotrope | R-290/22/152a (1.5/96.0/2.5) | A2 | 4.8 | 22,000 | 77 | 1000 | ‒ |
(continued)
TABLE 1103.1‒continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
CHEMICAL REFRIGERANT | FORMULA | CHEMICAL NAME OF BLEND | REFRIGERANT CLASSIFICATION | AMOUNT OF REFRIGERANT PER OCCUPIED SPACE | [F] DEGREES OF HAZARDa | |||
Pounds per 1,000 cubic feet | ppm | g/m3 | OELe | |||||
R-419A | zeotrope | R-125/134a/E170 (77.0/19.0/4.0) | A2 | 4.2 | 15,000 | 67 | 1,000 | ‒ |
R-420A | zeotrope | R-134a/142b (88.0/12.0) | A1 | 12 | 45,000 | 190 | 1,000 | 2-0-0b |
R-421A | zeotrope | R-125/134a (58.0/42.0) | A1 | 17 | 61,000 | 280 | 1,000 | 2-0-0b |
R-421B | zeotrope | R-125/134a (85.0/15.0) | A1 | 21 | 69,000 | 330 | 1,000 | 2-0-0b |
R-422A | zeotrope | R-125/134a/600a (85.1/11.5/3.4) | A1 | 18 | 63,000 | 290 | 1,000 | 2-0-0b |
R-422B | zeotrope | R-125/134a/600a (55.0/42.0/3.0) | A1 | 16 | 56,000 | 250 | 1,000 | 2-0-0b |
R-422C | zeotrope | R-125/134a/600a (82.0/15.0/3.0) | A1 | 18 | 62,000 | 290 | 1,000 | 2-0-0b |
R-422D | zeotrope | R-125/134a/600a (65.1/31.5/3.4) | A1 | 16 | 58,000 | 260 | 1,000 | 2-0-0b |
R-423A | zeotrope | R-134a/227ea (52.5/47.5) | A1 | 19 | 59,000 | 310 | 1,000 | 2-0-0c |
R-424A | zeotrope | R-125/134a/600a/600/601a (50.5/47.0/0.9/1.0/0.6) | A1 | 6.2 | 23,000 | 100 | 970 | 2-0-0b |
R-425A | zoetrope | R-32/134a/227ea (18.5/69.5/12.0) | A1 | 16 | 72,000 | 260 | 1,000 | 2-0-0b |
R-426A | zeotrope | R-125/134a/600a/601a (5.1/93.0/1.3/0.6) | A1 | 5.2 | 20,000 | 83 | 990 | ‒ |
R-427A | zeotrope | R-32/125/143a/134a (15.0/25.0/10.0/50.0) | A1 | 18 | 79,000 | 290 | 1,000 | 2-1-0 |
R-428A | zeotrope | R-125/143a/290/600a (77.5/20.0/0.6/1.9) | A1 | 23 | 83,000 | 370 | 1,000 | ‒ |
R-429A | zeotrope | R-E170/152a/600a (60.0/10.0/30.0) | A3 | 0.81 | 6,300 | 13 | 1,000 | ‒ |
R-430A | zeotrope | R-152a/600a (76.0/24.0) | A3 | 1.3 | 8,000 | 21 | 1,000 | ‒ |
R-431A | zeotrope | R-290/152a (71.0/29.0) | A3 | 0.69 | 5,500 | 11 | 1,000 | ‒ |
R-432A | zeotrope | R-1270/E170 (80.0/20.0) | A3 | 0.13 | 1,200 | 2.1 | 700 | ‒ |
R-433A | zeotrope | R-1270/290 (30.0/70.0) | A3 | 0.34 | 3,100 | 5.5 | 880 | ‒ |
R-433B | zeotrope | R-1270/290 (5.0-95.0) | A3 | 0.51 | 4,500 | 8.1 | 950 | ‒ |
R-433C | zeotrope | R-1270/290 (25.0-75.0) | A3 | 0.41 | 3,600 | 6.6 | 790 | ‒ |
R-434A | zeotrope | R-125/143a/600a (63.2/18.0/16.0/2.8) | A1 | 20 | 73,000 | 320 | 1,000 | ‒ |
R-435A | zeotrope | R-E170/152a (80.0/20.0) | A3 | 1.1 | 8,500 | 17 | 1,000 | ‒ |
R-436A | zeotrope | R-290/600a (56.0/44.0) | A3 | 0.50 | 4,000 | 8.1 | 1,000 | ‒ |
R-436B | zeotrope | R-290/600a (52.0/48.0) | A3 | 0.51 | 4,000 | 8.1 | 1,000 | ‒ |
R-437A | zeotrope | R-125/134a/600/601 (19.5/78.5/1.4/0.6) | A1 | 5.0 | 19,000 | 82 | 990 | ‒ |
R-438A | zeotrope | R-32/125/134a/600/601a (8.5/45.0/44.2/1.7/0.6) | A1 | 4.9 | 20,000 | 79 | 990 | ‒ |
R-439A | zeotrope | R-32/125/600a (50.0/47.0/3.0) | A2 | 4.7 | 26,000 | 76 | 990 | ‒ |
R-440A | zeotrope | R-290/134a/152a (0.6/1.6/97.8) | A2 | 1.9 | 12,000 | 31 | 1,000 | ‒ |
R-441A | zeotrope | R-170/290/600a/600 (3.1/54.8/6.0/36.1) | A3 | 0.39 | 3,200 | 6.3 | 1,000 | ‒ |
R-442A | zeotrope | R-32/125/134a/152a/227ea (31.0/31.0/30.0/3.0/5.0) | A1 | 21 | 100,000 | 330 | 1,000 | ‒ |
(continued)
TABLE 1103.1‒continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
CHEMICAL REFRIGERANT | FORMULA | CHEMICAL NAME OF BLEND | REFRIGERANT CLASSIFICATION | AMOUNT OF REFRIGERANT PER OCCUPIED SPACE | [F] DEGREES OF HAZARDa | |||
Pounds per 1,000 cubic feet | ppm | g/m3 | OELe | |||||
R-500e | azeotrope | R-12/152a (73.8/26.2) | A1 | 7.6 | 30,000 | 120 | 1,000 | 2-0-0b |
R-501d | azeotrope | R-22/12 (75.0/25.0) | A1 | 13 | 54,000 | 210 | 1,000 | ‒ |
R-502e | azeotrope | R-22/115 (48.8/51.2) | A1 | 21 | 73,000 | 330 | 1,000 | 2-0-0b |
R-503e | azeotrope | R-23/13 (40.1/59.9) | ‒ | ‒ | ‒ | ‒ | 1,000 | 2-0-0b |
R-504d | azeotrope | R-32/115 (48.2/51.8) | ‒ | 28 | 140,000 | 450 | 1,000 | ‒ |
R-507A | azeotrope | R-125/143a (50.0/50.0) | A1 | 32 | 130,000 | 520 | 1,000 | 2-0-0b |
R-508A | azeotrope | R-23/116 (39.0/61.0) | A1 | 14 | 55,000 | 220 | 1,000 | 2-0-0b |
R-508B | azeotrope | R-23/116 (46.0/54.0) | A1 | 13 | 52,000 | 200 | 1,000 | 2-0-0b |
R-509A | azeotrope | R-22/218 (44.0/56.0) | A1 | 24 | 75,000 | 390 | 1,000 | 2-0-0b |
R-510A | azeotrope | R-E170/600a (88.0/12.0) | A3 | 0.87 | 7,300 | 14 | 1,000 | ‒ |
R-511A | azeotrope | R-290/E170 (95.0/5.0) | A3 | 0.59 | 5,300 | 9.5 | 1,000 | ‒ |
R-512A | azeotrope | R-134a/152a (5.0/95.0) | A2 | 1.9 | 11,000 | 31 | 1,000 | ‒ |
R-600 | CH3CH2CH2CH3 | butane | A3 | 0.15 | 1,000 | 2.4 | 1,000 | 1-4-0 |
R-600a | CH(CH3)2CH3 | 2-methylpropane (isobutane) | A3 | 0.59 | 4,000 | 9.6 | 1,000 | 2-4-0 |
R-601 | CH3CH2CH2 CH2 CH3 | pentane | A3 | 0.18 | 1,000 | 2.9 | 600 | ‒ |
R-601a | (CH3)2CHCH2CH3 | 2-methylbutane (isopentane) | A3 | 0.18 | 1,000 | 2.9 | 600 | ‒ |
R-717 | NH3 | ammonia | B2f | 0.014 | 320 | 0.22 | 25 | 3-3-0c |
R-718 | H2O | water | A1 | ‒ | ‒ | ‒ | ‒ | 0-0-0 |
R-744 | CO2 | carbon dioxide | A1 | 4.5 | 40,000 | 72 | 5,000 | 2-0-0b |
R-1150 | CH2=CH2 | ethene (ethylene) | A3 | ‒ | ‒ | ‒ | 200 | 1-4-2 |
R-1234yf | CF3CF=CH2 | 2,3,3,3-tetrafluoro-1 propene | A2f | 4.7 | 16,000 | 75 | 500 | ‒ |
R-1234ze(E) | CF3CH=CHF | trans-1,3,3,3-tetrafluoro-1-propene | A2f | 4.7 | 16,000 | 75 | 800 | ‒ |
R-1270 | CH3CH=CH2 | Propene (propylene) | A3 | 0.1 | 1,000 | 1.7 | 500 | 1-4-1 |
For SI: 1 pound = 0.454 kg, 1 cubic foot = 0.0283 m3. |
a. Degrees of hazard are for health, fire, and reactivity, respectively, in accordance with NFPA 704. |
b. Reduction to 1-0-0 is allowed if analysis satisfactory to the code official shows that the maximum concentration for a rupture or full loss of refrigerant charge would not exceed the IDLH, considering both the refrigerant quantity and room volume . |
c. For installations that are entirely outdoors, use 3-1-0. |
d. Class I ozone depleting substance; prohibited for new installations. |
e. Occupational Exposure Limit based on the OSHA PEL, ACGIH TLV-TWA, the AIHA WEEL or consistent value on a time-weighted average (TWA) basis (unless noted C for ceiling) for an 8 hr/d and 40 hr/wk. |
f. The ASHRAE Standard 34 flammability classification for this refrigerant is 2L, which is a subclass of Class 2. |