SAPP Sodium Acid Pyrophosphate, Food Grade
| Items | Standards |
| Assay (%) (Na2H2P2O7) | ≥94.00% |
| P2O5 (%) | ≥62.00%,≤64.5% |
| Fluoride(PPM) | ≤10mg/kg |
| Cadmium(PPM) | ≤1mg/kg |
| Lead (PPM) | ≤1mg/kg |
| Mercury(PPM) | ≤1mg/kg |
| Arsenic(PPM) | ≤1mg/kg |
| Substances not dissolved in water(%) | ≤1.0% |
| PH value(%) | ≥3.6,≤4.2 |
| Loss on drying | ≤0.5% |
| 100mesh through | >98% |
| 200mesh through | >88% |
| 16mesh through | ≥95% |
| Ror | 28 |
| Aluminum(PPM) |
≤200 |