Schedule 1 Activity of Class 2 sources
| Description | Maximum number of megabequerels |
|---|---|
| Homogenous source | 0.4 |
| Laminated source | 4 |
| Sealed source | 4 |
| Electrodeposited source containing iron 55 | 200 |
| Electrodeposited source containing nickel 63 | 600 |
| Tritium foil source | 20,000 |