|
GRAIN SIZE DISTRIBUTION
|
|
| Mesh size, mm | Tolerance range, % |
| 0.71 | max. 0.5 |
| 0.50 | max. 2.0 |
| 0.355 | max. 10.0 |
| 0.25 | 20.0 – 40.0 |
| 0.18 | 30.0 – 40.0 |
| 0.125 | 10.0 – 30.0 |
| 0.09 | max. 8.0 |
| 0.063 | max. 1.0 |
| – 0.063 | max. 0.5 |
| Medium grain size, mm | 0.20 – 0.25 |
| Uniformity ratio, % | min. 60 |
| AFS number | 55 – 65 |
|
CHEMICAL ANALYSIS
|
|
| SiO2, % | min. 97.00 |
| Al2O3, % | max. 1.50 |
| Fe2O3, % | max. 0.25 |
| Loss on ignition, % | max. 0.25 |
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