| TEST | LIMIT |
| Total color, percent by mass. (Min) | 85.0 |
| Sum of volatile matter (at 135 °C) and chlorides and Sulphates (Calculated as sodium salts), percent by mass (Max) | 15.0 |
| Water insoluble matter, percent by mass. (Max) | 0.20 |
| Leuco base, percent by mass, (Max) | 5.00 |
| Sum of 0–, m–, and p-sulfobenzaldehydes, ammonium salt percent by mass, (Max) | 1.50 |
| N-Ethyl, N-(m-sulfobenzyl) sulfanic acid, ammonium salt percent by mass, (Max) | 0.30 |
| Subsidiary colors, percent by mass, (Max) | 6.00 |
| Chromium (as Cr), parts per million (Max) | 50.0 |
| Lead (as Pb) parts per million (Max) | 20.00 |
| Arsenic (as As), parts per million (Max) | 3.00 |
| Mercury (as As), parts per million (Max) | 1.00 |
