| TEST | LIMIT |
| Total coloring matters calculated as the sodium salt, percent by mass. (Min) | 70.0 |
| Loss on drying at 135 °C, Percent by mass and chlorides & Sulphates express as sodium salts, percent by mass (Max) | 30.0 |
| Water insoluble matter, percent by mass. (Max) | 0.20 |
| Combined ether extract, percent by mass. (Max) | 0.20 |
| Unsulphonated Primary aromatic amines, percent by mass (Max) | 0.01 |
| Subsidiary dyes, percent by mass. (Max) | 10.0 |
Total organic compound other than coloring matters, percent by mass.
4-aminonaphthalene-1-sulfonic acid | 0.70
|
| Arsenic (mg/kg.) (Max) | 3.00 |
| Lead (mg/kg.) (Max) | 2.00 |
| Mercury (mg/kg.) (Max) | 1.00 |
| Cadmium (mg/kg.) (Max) | 1.00 |
