| ≥1 piece |
|
Character
|
Value
|
Instruments for determination
|
|
Water
|
Not more than 15%
|
Oven (1050C, 5 hours)
|
|
Ash
|
Not more than 5%
|
Furnace (550 C)
|
|
Nitrogen (N %)
|
0.27- 0.39
|
Kjeldahl unit
|
|
Protein
|
1.8 – 2.8 (N%X6.6)
|
Determined from N%
|
|
Specific rotation
|
-26 to –34(degree)
|
Polarimeter
|
|
PH
|
4.1- 4.9
|
PH- meter
|