
| Yam khoom | Specification |
| Ba(CH3COO) 2 | ≥ 99.0% |
| Insoluble | 0.01 |
| Hlau (Fe) | 0.0005 |
| Heavy hlau (raws li Pb) | 0.0005 |
| Nitrates (NO3) | 0.01 |
| 1100 ℃ BaO cov ntsiab lus | 60 ± 1 |
| Chloride (Cl) | 0.003 |
| Calcium (Ca) + strontium (Sr) | 0.1 |
| Tsis-precipitated teeb meem (sulfate) | 0.1 |