| ITEMS | LIQUID | SOLID |
| Active Content (HEDP) % | ≥60.0 | ≥90.0 |
| Active Content (HEDP·H2O) % | - | ≥98.0 |
| Phosphorous Acid (as PO33-) % | ≤2.0 | ≤0.8 |
| Phosphoric Acid (as PO43- ) % | ≤0.8 | ≤0.5 |
| Chloride (as Cl-) % | ≤0.02 | ≤0.01 |
| PH (1% Water Solution) | ≤2.0 | ≤2.0 |
| Density (20℃)g/cm3 | ≥1.40 | - |
| Fe, mg/L | ≤20.0 | ≤10.0 |
| Color APHA (Hazen) | ≤40.0 | - |
| Ca Sequestration (mg CaCO3/g) | ≥500.0 | - |
- CHINESECN