1) |
Total colour/Assay, percent by Mass, min. |
85.00 |
2) |
Water-insoluble matter, percent by mass, Max. |
00.20 |
3) |
Combined ether extracts, percent by mass, Max. |
00.20 |
4) |
Subsidiary dyes, percent by mass, Max. |
01.00 |
5) |
Dye intermediates, percent by mass, max.
- Isatin sulphanic acid,
- 5- Sulfoanthranilic acid
|
00.50
|
6) |
Unsulfonated primary aromatic amine (calculated as aniline)
percent by mass, max. |
00.01 |
9) |
Heavy metals, (as pb) mg/kg, max |
40.00 |