| ≥1 piece |
|
Test Items
|
The Standard
|
Test Results
|
|
Identification
|
Meets the requirements
|
Conforms
|
|
Appearance
|
White crystalline
|
White crystalline
|
|
Assay ( on dry basis)
|
≥98.5%
|
99.62%
|
|
Melting point
|
92.0°C ~96.0°C
|
95.0°C
|
|
Loss on drying
|
≤0.20%
|
0.04%
|
|
Reducing sugars
|
≤0.30%
|
Less than 0.20%
|
|
Other polyols
|
≤1.00%
|
0.31%
|
|
Heavy metals
|
≤5mg/kg
|
Less than 5mg/kg
|
|
Arsenic
|
≤0.5mg/kg
|
Less than 0.5mg/kg
|
|
Chloride
|
≤50mg/kg
|
Less than 50mg/kg
|
|
Sulfate
|
≤50mg/kg
|
Less than 50mg/kg
|
|
Lead
|
≤0.3mg/kg
|
Less than 0.3mg/kg
|
|
Residue on ignition
|
≤0.10%
|
0.03%
|
|
Nickel
|
≤1mg/kg
|
0.039mg/kg
|
|
Total plate count
|
≤1000cfu/g
|
10cfu/g
|
|
E-coli
|
Negative
|
Negative
|
|
Salmonella
|
Negative
|
Negative
|
|
yeast and Mold
|
≤100cfu/g
|
10cfu/g
|