Dose Calibrator Quality Control
| Test | Purpose | Source | Frequency | Passing level |
| Accuracy | Accuracy | 137Cs, 57Co, 133Ba | Annually | ±10% |
| Constancy | Precision | 137Cs or 57Co | Daily, before use | ±10% |
| Linearity | Precise over range of activities | 99mTc or 18F | Quarterly | ±10% |
| Geometry | Precise over different configurations/volumes | 99mTc | New or after repairs | ±10% |