Tabulka 1a
+--------------------------------------------+--------------------------------+
| LC50, krysa, 4 hod. v ppm | Kalkulační číslo (a) |
+--------------------------------------------+--------------------------------+
| 0,01 - 0,1 | 8 |
| 0,1 - 1 | 7 |
| 1 - 10 | 6 |
| 10 - 100 | 5 |
| 100 - 1000 | 4 |
| 1000 - 10 000 | 3 |
| 10 000 - 100 000 | 2 |
+--------------------------------------------+--------------------------------+