ITEMS | STANDARDS | RESULTS |
Appearance | Black powder | Qualified |
Humic acid (dry basis), % | ≥ 60% | 61.4 |
Fulvic acid (dry basis), % | ≥ 10 | 10.6 |
K2O, % | ≥ 10 | 10.5 |
Moisture % | ≤ 10 | 8 |
Water solubility | 100 | 100 |
pH | 8~10 | 8.5 |
Mesh | 80~120 | 100 |
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