
| Item ng pagsusuri | Mga karaniwang kinakailangan (%) |
| SrSO4 nilalaman | ≥99.0 |
| Barium sulfate (BaSO4) | ≤0.1 |
| Calcium sulfate (CaSO4) | ≤0.08 |
| Chloride (Cl) | ≤0.01 |
| Calcium oxide (CaO) | ≤0.05 |
| Bakal (Fe) | ≤0.01 |
| Sodium (Na) | ≤0.008 |
| Potassium (k) | ≤0.005 |
| Nilalaman ng tubig | ≤0.1 |
| Hitsura | Puting pinong pulbos |