
| Eitem dadansoddi | Gofynion safonol (%) |
| SrSO4 cynnwys | ≥99.0 |
| Sylffad bariwm (BaSO4) | ≤0.1 |
| Calsiwm sylffad (CaSO4) | ≤0.08 |
| Clorid (Cl) | ≤0.01 |
| Ocsid calsiwm (CaO) | ≤0.05 |
| Haearn (Fe) | ≤0.01 |
| Sodiwm (Na) | ≤0.008 |
| Potasiwm (k) | ≤0.005 |
| Cynnwys dŵr | ≤0.1 |
| Ymddangosiad | Powdr mân gwyn |