Share on:
Item | Standard | Item | Standard |
Appearance | White to yellowish particles, powdery | Acid insoluble gray | ≤0.5% |
Identify | Positive reaction | Heavy metal | ≤0.004% |
Viscosity (at 25 degrees) | 50-100mpas/15 | PH value | 6-7 |
Insoluble matter | Residue≤0.5% | Arsenic salt | ≤0.003% |
Starch or dextrin | The solution should not be blue or red | Microbiological examination items | Bacterial<1000 |
Tannic Acid Gum | The solution should not appear black or produce a black precipitate | ||
Loss on drying | Lose weight≤15.0% | ||
Total ash | ≤0.5% |