| - Pure Dye Content (min) - |
85% |
| - Max. Loss on drying at 135oC and sodium chloride/sulphates
- |
15% |
| - Max. water insoluble matter -
|
0.20% |
| - Max Ether extractable matter -
|
0.20% |
| - Max. Subsidiary Dyes - |
3% |
| - Max Organic compounds other than
colouring matters - |
0.50% |
| - Max Unsulfonated primary aromatic
amine - |
0.01% |
| - Max Arsenic (as 'As') PPM - |
1.0 |
| - Max Lead (as 'Pb') PPM - |
10 |
| - Max heavy metal PPM - |
40 |