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Western Carbons only supplies filtration sand from well established producers. Sand is still the basis for most of the filtration of drinking water throughout the world, and, in conjunction with a layer of anthracite is used in the most modern water treatment plants as part of a multimedia system.
Standards
UK and European EN12904
Physical Characteristics
Colour Brown
Specific Gravity 2.65
Bulk Density 1.56 kg/litre
Hardness 6 - 7 Moh
Dominant Shape Irregular
Subordinate Shape Round
Surface Texture Smooth & Glassy
Chemical Analysis
Silica 94 - 98%
Ferrous Oxide 1 - 2.5%
Aluminum Oxide below 0.5%
Standard Grades (sizes in mm)
Grade Size Range Effective Size Hydraulic Size Uniformity
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 <1.50
5/8 2.00 - 3.35 2.00 - 2.70 <1.40