Heating Method and Amount of Radioactivity for Each Group
| Amount of activity added to bulk vial of sulfur colloid | |||
| Group | Heating method used to prepare bulk vial of sulfur colloid | MBq | mCi |
| A | Water bath | 2,960 ± 10% | 80 ± 10% |
| B | Dry heat block | 2,960 ± 10% | 80 ± 10% |
| C | Water bath | 6,660 ± 10% | 180 ± 10% |