tem
|
Standard
|
Results
|
Appearance
|
White crystalline granule or powder,odorless, tastessweet.
|
conforms
|
Solubility
|
Soluble in water, but insoluble in ethanol,chloroform and ethylether.
|
conforms
|
Special rotation
|
+52.3°~+52.6°
|
+52.3°
|
Content (%)
|
98.0~102.0
|
99.7
|
Moisture (%)
|
4.5~5.5
|
5.0
|
Residue ignition (%)
|
≤1.0
|
0.03
|
Loss on drying (%)
|
≤1.0
|
0.11
|
Heavy metal (ppm)
|
≤5
|
conforms
|
Arsenic(As) (%)
|
≤0.0002
|
conforms
|
PH value
|
4.0~7.0
|
4.8
|
Bacteria count
|
≤1000/g
|
<10/g
|
Mould count
|
≤100/g
|
<10/kg
|
Escherichia coli
|
Cannot be detected
|
conforms
|