|
TEST
|
| 1. Assay 99.9% min. |
| 2. Substances darkened by H2SO4 - Pass test |
| 3. Substances reducing permanganate - Pass test |
| 4. Color (APHA) 10 max. |
| 5. Water 0.1% max. |
| 6. Residue after evaporation 3 ppm |
| 7. Solubility in water - Pass test |
| 8. Acetone, Formaldehyde, Acetaldehyde 0.001% each |
| 9. Titrable acid 0.0003 meq/g |
| 10. Titrable base 0.0002 meq/g |
| 11. LC Gradient suitability - Pass test |
| 12. Absorbance @ 205 nm 1.0 / @ 220 nm 0.30 |
| 13. Absorbance @ 230 nm 0.15 / @ 254 nm 0.01 |