| Analysis | Unit | Standard |
| Appearance | Colorless transparent liquid | |
| Active content (as HEDP) | % | 58-62min |
| Phosphorous acid（as PO33-） | % | 2.0max |
| Phosphoric acid（as PO43-） | % | 0.8max |
| Chloride (as Cl-) | % | 0.01max |
| PH (1% water solution) | 2.0 max | |
| Iron | ppm | 10max |
| Sequestration value | mg/CaCO3/g | 500min |
| Colour apha | Hazen | 20max |
| Density @ 20℃ | g/cm3 | 1.40min |
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