SCHEDULES
THIRD SCHEDULE Specified elements
Element | Microcuries per gramme | ||
|---|---|---|---|
Solid | Liquid | Gas or vapour | |
1. Actinium | 1y10-&sup5; | 2y10-&sup6; | 7y10-¹¹ |
2. Lead | 2y10-&sup5; | 1y10-&sup7; | 3y10-&sup9; |
3. Polonium | 1y10-&sup5; | 7y10-&sup7; | 6y10-&sup9; |
4. Protoactinium | 1y10-&sup5; | 9y10-&sup7; | 3y10-¹¹ |
5. Radium | 1y10-&sup5; | 1y10-&sup8; | 1y10-&sup9; |
6. Radon | 1y10-&sup6; | ||
7. Thorium | 7y10-&sup5; | 1y10-&sup6; | 6y10-¹&sup0; |
8. Uranium | 3y10-&sup4; - | 2y10-&sup5; | 2y10-&sup9; |