| T/˚C | A | B |
| 0 | 0.4883 | 0.3241 |
| 5 | 0.4921 | 0.3249 |
| 10 | 0.4960 | 0.3258 |
| 15 | 0.5000 | 0.3262 |
| 20 | 0.5042 | 0.3273 |
| 25 | 0.5085 | 0.3281 |
| 30 | 0.5130 | 0.3290 |
| 40 | 0.5221 | 0.3305 |
| 50 | 0.5319 | 0.3321 |
| 60 | 0.5425 | 0.3338 |