| Items | Specification | Results |
| Appearance | Transparent Colorless Sticky Liquid | Complies |
| Colority(Pt-Co) | ≤20 or ≤30 or ≤40 | <10 |
| Assay as H2PO4 | ≥85% or 80% or 75% | 85.20% |
| Chloride as Cl | ≤0.0005% | 0.0001 |
| Sulphate as SO4 | ≤0.003% or ≤0.005% or ≤0.01% | <0.003% |
| Heavy Metals as Pb | ≤0.001% or ≤0.001% or ≤0.005% | <0.0008% |
| Arsenic as As | ≤0.0001% or ≤0.005% or ≤0.01% | <0.0001% |
| Iron as Fe | ≤0.002 or ≤0.002 or ≤0.005 | <0.0005% |