PAAS enterprise standard
| item \ standard | food |
appearance |
White powder |
Free alkali |
qulified |
sulfate(SO4) |
≤0.48% |
Loss in weight on drying |
≤10% |
Residue on ignition |
≤75% |
Heavy metal（以Pb计） |
≤20ug/g |
arsenic (As2O3) |
≤2ug/g |
Residual monomer |
≤1% |
Lower polymer（lower than 1000degree of polymerization） |
≤5% |