| ≥1 piece |
|
Item
|
Limit
|
Test result
|
|
Appearance
|
White or colorless
crystal
|
Passed
|
|
Assay
|
99.0%
|
99.3%
|
|
state of solution
(transmittance)
|
Clear and colorless not less than 98.0%
|
98.2%
|
|
chloride (cl)
|
Not more than 1.0%
|
not more than 0.7%
|
|
Ammonium(NH4)
|
Not more than0.02%
|
Not more than 0.02%
|
|
Sulfate(so4)
|
not more than 0.026%
|
Not more than 0.028%
|
|
Iron (Fe)
|
Not more than 30PPM
|
Not more than 30PPM
|
|
Heavy metals (pb)
|
Not more than 10PPM
|
Not more than 10 PPM
|
|
Arsenic (ASO3)
|
Not more than 1PPM
|
Not more than 1 PPM
|
|
Other amino acids
|
Conforms
|
Conforms
|
|
Microphyte
|
Not more than 15000/G
|
1500
|
|
Coliform
|
Not more than 40/100G
|
25
|
|
Loss on drying
|
Not more than 0.50%
|
0.28%
|
|
specific rotation (a)20
|
+24.7 +25.2
|
25.0
|
|
PH
|
6.77.2
|
7.0
|