SHMP Sodium Hexametaphosphate,Industrial Grade
| ITEM | Technical Grade(index) | Food Grade(index) |
| Phosphorus pentoxide(asP2O5) | 68min | 67min |
| Unactive phosphate(P2O5) | 7.5max | 7.3max |
| Iron(Fe) | 0.05max | 0.06max |
| PH Value | 5.8--7.3 | 5.8--6.7 |
| Insoluble matter in water | 0.05max | 0.06max |
| Arsenic(As) | -- | 0.00025max |
| Heavy Metal (as Pb) | -- | 0.001max |
| Flouride (as F) | -- | 0.003max |