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 |