Items | Standard |
Appearance | White to slightly creamy white, hygroscopic powder or flakes |
Identification | A. An orange -yellow precipitate is formed |
B.A pale blue precipitate is formed | |
C.A deep red colour is produced | |
PH(1 in 20) | 3.0~7.0 |
Water | ≤5.0% |
Residue on ignition | ≤0.1% |
Lead | ≤ 10ppm |
Aldehydes | ≤0.05% |
Hydrazine | ≤ 1ppm |
Vinylpyrrolidone | ≤0.2% |
2-Pyrrolidone | ≤3.0% |
Peroxides(as H2O2) | ≤400ppm |
K-value | 27.0~32.4 |
Assay(Nitrogen) | 11.5~12.8% |
TAMC | ≤ 1000 cfu/g |
TYMC | ≤ 100 cfu/g |
Staphylococcus Aureus | Negative in 10g |
Salmonella | Negative in 10g |
Pseudomonas Aeruginosa | Negative in 10g |
E.Coli | Negative in 10g |