| Item | Specifications |
| Apperance | White solid powder |
| Viscosity | 3 ~ 70 |
| pH | 4.5 ~ 6.5 |
| Loss on drying | ≤5.0 |
| Burning residue | ≤0.5 |
| acid value | ≤3.0% |
| Alcoholysis degree | 85 ~ 89 |
| heavy metal | ≤10ppm |
| Low Viscosity | |
| Item | Specifications |
| Apperance | White solid powder |
| Viscosity | 4.0 ~ 7.0 |
| pH | 5 ~ 8 |
| Average molecular weight | 16000 ~ 20000 |
| Loss on drying | ≤5.0 |
| Burning residue | ≤2.0 |
| Water insoluble impurities | ≤0.1% |
| Degree of hydrolysis | + |
| Organic volatile impurities | + |
| Purity | 85.0% ~ 115.0% |
| Middle Viscosity | |
| Item | Specifications |
| Apperance | White solid powder |
| Viscosity | 21.0 ~ 33.0 |
| pH | 5 ~ 8 |
| Average molecular weight | 110000 ~ 130000 |
| Loss on drying | ≤5.0 |
| Burning residue | ≤2.0 |
| Water insoluble impurities | ≤0.1% |
| Degree of hydrolysis | + |
| Organic volatile impurities | + |
| Purity | 85.0% ~ 115.0% |
| High Viscosity | |
| Item | Specifications |
| Apperance | White solid powder |
| Viscosity | 40.0 ~ 65.0 |
| pH | 5 ~ 8 |
| Average molecular weight | 180000 ~ 200000 |
| Loss on drying | ≤5.0 |
| Burning residue | ≤2.0 |
| Water insoluble impurities | ≤0.1% |
| Degree of hydrolysis | + |
| Organic volatile impurities | + |
| Purity | 85.0% ~ 115.0% |