| Sl |
CHARACTERISTICS |
REQUIREMENT GRADE |
|
|
BW |
TECH |
CP |
AR |
| 01 |
Total acidity (as HCI ), percent by mass, Min |
30.0 |
30.0 |
32.0 |
32.0 |
| 02 |
Residue on ignition, percent by mass, Max |
0.01 |
0.1 |
0.01 |
0.0005 |
| 03 |
Sulphates (as H2S04 ), percent by mass, Max |
0.1 |
0.1 |
0.02 |
0.0002 |
| 04 |
Iron (as Fe), percent by mass, Max |
0.002(20ppm) |
0.005(50ppm) |
0.0001(1ppm) |
0.00004(0.4ppm) |
| 05 |
Free chlorine and bro-mine(asCl), (percent) by mass, Max |
0.0005(5 ppm) |
0.001(10ppm) |
0.001(10ppm) |
0.0002(2 ppm) |
| 06 |
Sulphites ( as SOs ), percent by mass, Max |
0.05 |
0.05 |
0.04 |
0.0001 |
| 07 |
Heavy metals ( as Pb ), percent by mass, Max |
0.002 |
- |
0.0005 |
0.000 08 |
| 08 |
Arsenic ( as As ), percent by mass, Max) |
0.0005(5 ppm) |
- |
0.0002(2 ppm) |
0.000002(O'02ppm) |
| 09 |
Ammonium compounds ( as NH4 ), percent by mass, Max |
- |
- |
- |
0.0003( 3 ppm) |
| 10 |
Mercury (as Hg ), ppm Max |
3 |
3 |
0.03 |
- |
