ITEM | STANDARD |
Appearance | White or cream colored powder |
Purity | >=98.0% |
Viscosity (2%, 25℃, mpa.s) | 800- 1200 |
Degree of substitution | 0.60 - 0.90 |
pH (1% solution) | 6.5- 8.5 |
Chloride (%) | =< 1.2 |
Loss on drying (%) | =< 10 |
Lead | =< 3 mg/kg |
Arsenic | =< 2 mg/kg |
Mercury | =< 1 mg/kg |
Cadmium | =< 1 mg/kg |
Heavy metals (as Pb) | =< 10 mg/kg |
Total plate count (cfu/g) | =< 1000 |
Yeast and mould (cfu/g) | =< 100 |
E.coli / 5g | Negative |
Salmonella spp./ 25g | Negative |