Use of materials | Category (corresponding default dose) | |
A (≤1 mSv) | B (>1 mSv) | |
1) in bulk amounts | A1 (I ≤ 1) | B1 (I > 1) |
2) Superficial and/or with restricted use | A2 (I ≤ 6) | B2 (I > 6) |