| Cr2O3 |
97.00% (Min) |
| Volatile matter at 105 + 2°C |
0.30% (Max) |
| Residue on sieve |
0.50% (Max) |
| Matter soluble in hot water |
0.20% (Max) |
| Loss of ignition at 1000 + 20°C |
0.50% |
| PH of the aqueous extract |
6 to 8 |
| Oil absorption |
Within 5 of the approved sample |
| Color staining power |
Equal to the approved sample |
| Resistance to Alkali and acid |
Not inferior to the approved sample |