| Enviro-Safe 12a Refrigerant | ||||
| Pressure Temperature Chart | ||||
| TEMP | R12 | E-S | R134a | |
| C | F | psi | psi | psi |
| -40 | -40 | -5 | -4 | -7 |
| -38 | -36 | -4 | -3 | -6 |
| -36 | -33 | -3 | -2 | -6 |
| -34 | -29 | -2 | -1 | -4 |
| -32 | -26 | -1 | 0 | -3 |
| -30 | -22 | 0 | 1 | -2 |
| -28 | -18 | 1 | 3 | -1 |
| -26 | -15 | 3 | 4 | 1 |
| -24 | -11 | 4 | 6 | 2 |
| -22 | -8 | 6 | 7 | 4 |
| -20 | -4 | 7 | 9 | 6 |
| -18 | 0 | 9 | 11 | 7 |
| -16 | 3 | 11 | 12 | 9 |
| -14 | 7 | 13 | 14 | 10 |
| -12 | 10 | 15 | 16 | 13 |
| -10 | 14 | 17 | 19 | 15 |
| -8 | 18 | 20 | 21 | 17 |
| -6 | 21 | 22 | 23 | 20 |
| -4 | 25 | 25 | 26 | 22 |
| -2 | 28 | 28 | 28 | 25 |
| 0 | 32 | 30 | 31 | 28 |
| 2 | 36 | 33 | 34 | 31 |
| 4 | 39 | 37 | 37 | 33 |
| 6 | 43 | 40 | 41 | 37 |
| 8 | 46 | 43 | 44 | 41 |
| 10 | 50 | 47 | 48 | 46 |
| 12 | 54 | 51 | 51 | 50 |
| 14 | 57 | 55 | 55 | 54 |
| 16 | 61 | 59 | 59 | 59 |
| 18 | 64 | 64 | 63 | 64 |
| 20 | 68 | 68 | 68 | 68 |
| 22 | 72 | 73 | 72 | 74 |
| 24 | 75 | 78 | 77 | 79 |
| 26 | 79 | 83 | 82 | 85 |
| 28 | 82 | 88 | 87 | 91 |
| 30 | 86 | 94 | 92 | 97 |
| 32 | 90 | 100 | 98 | 104 |
| 34 | 93 | 106 | 104 | 111 |
| 36 | 97 | 112 | 109 | 118 |
| 38 | 100 | 119 | 115 | 126 |
| 40 | 104 | 125 | 122 | 133 |
| 42 | 108 | 132 | 129 | 142 |
| 44 | 111 | 140 | 135 | 150 |
| 46 | 115 | 147 | 142 | 159 |
| 48 | 118 | 155 | 150 | 168 |
| 50 | 122 | 163 | 157 | 177 |
| 52 | 126 | 171 | 165 | 188 |
| 54 | 129 | 180 | 173 | 198 |
| 56 | 133 | 189 | 181 | 208 |