| Appearance | Light yellow to yellow free flowing powder |
| Solubility | Freely soluble in distilled /purified water , insoluble in alcohol |
| Clarity of solution | 1% w/v aqueous solution is clear without haziness after autoclaving at 15 lbs pressure (at 121°C) for 15 mins |
| pH (2% w/v solution in water) | 6.20 – 7.20 |
| Total nitrogen (N) | Min 12.0% |
| Amino nitrogen | Min 3.0% |
| Sodium chloride (NaCl) | Max 6.0% |
| Loss on drying | Max 6.0% |
| Residue on ignition | Max 17.0% |
| Microbial Limits | |
| Total aerobic plate count | Max 2000 CFU/gm |
| Total yeast and mould conut | Max 100 CFU/gm |
| Test for pathogens | |
| E.coli. | Negative in 10 gm of sample |
| Salmonella species | Negative in 10 gms of sample |
| Pseudomonas aeruginosa | Negative in 10 gms of sample |
| Staphylococcus aureus | Negative in 10 gms of sample |
