The physical and chemical indicators
Appearance | white or similar to white powder |
Transparency and solution color | ≤0.35 |
cpc | ≥90% |
The rotation | -20°- -30° |
Protein | ≤6% |
PH | 6.0-7.0 |
Drying weight loss | ≤10% |
Burn residue | 20%-30% |
Chloride | ≤0.5% |
Sulfate | ≤0.24% |
Heavy metals | <10ppm |
The total number of colonies | ≤ 1000CFU/g |
Mold and yeast | ≤ 100CFU/g |
Escherichia coli | negative |
Salmonella | negative |