|
TEST
|
| 1. Assay 99.5% min. |
| 2. Optical absorbance @ 255 nm 1.00 |
| 3. Optical absorbance @ 257 nm 0.50 |
| 4. Optical absorbance @ 263 nm 0.10 |
| 5. Optical absorbance @ 275 nm 0.05 |
| 6. Optical absorbance 330-400 nm 0.01 |
| 7. Residue after evaporation 0.001% |
| 8. Titrable acid 0.0009 meq/g |
| 9. Color (APHA) 10 max |
| 10. Water 0.05% |
| 11. Substances darkened by sulfuric acid - pass test |