| ITEM | STANDARD |
|---|---|
| Moisture (%) | ≤ 10% |
| Viscosity(2% solutionB/mpa.s) | 3000-5000 |
| PH value | 6.5-8.0 |
| Chloride (%) | ≤ 1.8% |
| Degree of substitution | 0.65-0.85 |
| Heavy metals Pb% | ≤ 0.002% |
| Iron | ≤ 0.03% |
| Arsenic | ≤ 0.0002% |

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