| Test Items | Specification | Test Results |
| Appearance | Yellow to light brown powder | Brown powder |
| Content(lignin) | ≥60% | 61.7% |
| PH | 7.0-9.0 | 7.8 |
| Reducing substance | 4.0%-8.0% | 5.7% |
| Insolubles | 0.3%-1.5% | 0.8% |
| Water | 3%-7% | 6.3% |
| Dry matter | 93%-97% | 95.7% |
| Mineral salt | 2%-5% | 2.9% |
| Conclusion | QUALIFIED | |
| Items | Specification |
| Appearance | Brown powder |
| Moisture, % | ≤ 7.0 |
| pH Value | 7.0-9.0 |
| Solid content, % | ≥ 95.0 |
| Lignin, % | ≥60.0 |
| Water insoluble matter, % | ≤1.50 |