| Sr. No. |
CHARACTERISTICS
|
REQUIREMENT |
| 1 |
Description
|
Fine, white, free from dirt/black
specks and non gritty free flowing powder.
|
| 2 |
Moisture % by Mass
@ 105c for 1 hour |
5.0 - 7.0 |
| 3 |
Loss on ignition
@ 850c for 1 hour |
6.0 - 7.0 |
| 4 |
Bulk Density Compact
(After 50 Taps)-gm/ml |
0.09 - 0.10 |
| 5 |
Water Absorption
(gm/100 gm) (Min.) |
250 |
| 6 |
pH 5% Aqueous Slurry
|
6.5 - 7.5 |
| 7 |
Assay % by Mass
before ignition (Min) |
88.0 - 90.0 |
| 8 |
Assay % by Mass
after ignition ( Min) |
99.5 |
| 9 |
Iron (as Fe+++)
ppm Max. |
250 |
| 10 |
Sulphate (as SO4
) ppm Max. |
350 |
| 11 |
Chloride (as C1
) ppm Max. |
300 |
| 12 |
Arsenic (as As)
ppm Max. |
Nil |
| 13 |
Lead (as Pb) ppm
Max. |
Nil |
| 14 |
Retention on 300
Mesh - % by Mass (Max) |
0.5 |
| 15 |
Average Particle
Size |
10 mm |