| ITEM | STANDARD |
| Appearance | Brown to yellowish powder |
| Paticle size | 30 mesh |
| Viscosity (1%, 25℃, mPa.s) | >= 1000 |
| Loss on drying (105℃, 4h, %) | =< 15 |
| pH (1% solution) | 6.0 - 8.0 |
| Water insolubles (%) | =< 0.6 |
| Calcium (%) | =< 0.3 |
| Viscosity declining rate (%) | =< 20 |
| Lead | =< 5 mg/kg |
| Arsenic | =< 3 mg/kg |
| Total heavy metals (as Pb) | =< 20 mg/kg |
| Free Chlorine | Not Detective |