
| Res analysis | Requisita norma (%) |
| SrSO4 contentum | ≥99.0 |
| Barii sulfas (BaSO4) | ≤0.1 |
| Calcii sulfas (CaSO4) | ≤0.08 |
| Chloridum (Cl) | ≤0.01 |
| Oxidum calcii (CaO) | ≤0.05 |
| Ferrum (Fe) | ≤0.01 |
| Natrium (Na) | ≤0.008 |
| Kalium (k) | ≤0.005 |
| Contentum aquae | ≤0.1 |
| Aspectus | Pulvis albus subtilis |