Test | EEC (Limit) |
Total colouring matters calculated as the sodium salt percent by mass | Min. | 70 |
Water insoluble matter, percent by mass | Max. | 0.20 |
Combined ether extract, percent by mass | Max. | 0.20 |
Unsulfonated Primary aromatic amines, percent by mass (calculated as aniline) | Max. | 0.01 |
Subsidiary dyes, percent by mass | Max. | 10 |
Total organic compound other than colouring matters, percent by mass. 4-aminonaphthalene-1-sulfonic acid | Max. | 0.70 |
Heavy metals as pb(mg/kg.) | Max. | 40 |
Arsenic, (mg/kg.) | Max. | 3 |
Lead (mg/kg.) | Max. | 2 |
Mercury (mg/kg.) | Max. | 1 |
Cadmium (mg/kg.) | Max. | 1 |