Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus | 
| K-40  | |
|---|---|
| BT | isotopes | 
| .radioactive isotopes | |
| ..K-40 | |
| BT | metals | 
| .alkali metals | |
| ..potassium | |
| ...K-40 | |
| SN | This term has multiple hierarchies. | 
| Data sets | Publications | Expeditions | Thesaurus | 
| K-40  | |
|---|---|
| BT | isotopes | 
| .radioactive isotopes | |
| ..K-40 | |
| BT | metals | 
| .alkali metals | |
| ..potassium | |
| ...K-40 | |
| SN | This term has multiple hierarchies. |