| BSS下限値 | 非密封許可核種 | 密封線源 |
|---|---|---|
| 1 GBq | H-3 | H-3 |
| 100 MBq | S-35 | |
| 10 MBq | C-14, Ca-45, Cr-51, Hg-197, Tc-99m | C-14 |
| 1MBq |
As-74, Au-198, Ca-47, Cd-115m, Cu-64, Fe-59, Ga-67, I-125, I-131, K-42, Mn-54, Mo-99, Na-22, Sr-85, Zn-65 |
Ba-133 |
| 100 kBq |
Co-60, Hg-203, Mg-28, Mn-52, Na-24, P-32 |
|
| 10 kBq | Cs-137 | Cs-137, Ra-226 |
| 1 kBq |