| Filter Sand |
| Specification and Grades |
| Sand filter media is the bases of most filtration systems. We only provide material produced by proven suppliers. |
| Standard | ||
| European | EN12904 | |
| Physical Characteristics | ||
| Colour | Brown | |
| Specific Gravity | 2.65 | |
| Bulk Density | 1.56 | |
| Hardness | 6 - 7 Moh | |
| Dominant Shape | Irregular | |
| Subordinate Shape | Round | |
| Surface Texture | Smooth & Glassy | |
| Analysis | ||
| Silica | 94 - 98% | |
| Ferrous Oxide | 1.0 - 2.5% | |
| Aluminum Oxide | below 0.5% | |
E.S. Effective Size
U.C. Uniformity Coefficient
All sizes in millimeters
| Grade | Size Range | E.S. | U.C. |
| 16/30 | 0.50 - 1.00 | 0.54 - 0.71 | <1.40 |
| 14/25 | 0.60 - 1.20 | 0.63 - 0.85 | <1.40 |
| 10/18 | 0.85 - 1.70 | 0.85 - 0.95 | <1.40 |
| 8/16 | 1.00 - 2.00 | 1.05 - 1.27 | <1.40 |
| 6/14 | 1.20 - 2.80 | 1.25 - 1.60 | <1.40 |
| 5/8 | 2.00 - 3.35 | 2.00 - 2.70 | <1.40 |