| Aktiva substanser | Betyg | Bibliogr. | Expandera | |
|---|---|---|---|---|
| 1 | Jodradioisotoper | 100 | + | |
| 2 | Kolradioisotoper | 75 | + | |
| 3 | Fluorradioisotoper | 63 | + | |
| 4 | Fosforradioisotoper | 60 | + | |
| 5 | Svavelradioisotoper | 57 | + | |
| 6 | Tritium | 53 | + | |
| 7 | Radioaktiva spårämnen | 34 | + | |
| 8 | Xenonradioisotoper | 34 | + | |
| 9 | Natriumradioisotoper | 32 | + |