| ≥1 piece |
|
Test items
|
Specifications
|
|
Appearance
|
White crystals or crystalline powder
|
|
Specific rotation
|
+14.9~+16.0C
|
|
State of solution(Transmittance)
|
98.0% min
|
|
Chloride(Cl)
|
0.020% max
|
|
Ammonium(NH4)
|
0.020% max
|
|
Sulfate(SO4)
|
0.020% max
|
|
Iron(Fe)
|
10ppm max
|
|
Heavy metals(Pb)
|
10ppm max
|
|
Arsenic(As2O3)
|
1ppm max
|
|
Other Amino Acids
|
Chromatographically not detectable
|
|
Loss on drying
|
0.20% max
|
|
Residue on ignition(Sulfated)
|
0.10% max
|
|
Assay
|
99.0~100.5%
|
|
PH
|
5.5~6.5
|