TYPICAL PHYSICAL AND CHEMICAL CHARACTERISTICS
Light to dark brown, homogeneous, no flaky material, clean.
Mainly semi-translucent quartz. Some black/dark brown grains.
Angular, but no sharp edges or points.
Not crushed. Surface rough.
Shape : Round
Estimated Sphericity: 0.75
Density : 2.69 kg/m3 (Normal for quartz sand)
Bulk Density : 1.5 t/m3
Mohs Hardness : 6-7 (Normal for quartz sand)
Solubility : 24 hours 20% HCl = 0.42%
Attrition :100h just fluidised = 3yr daily washing
Loss of weight = 0.31% (Negligible loss of weight)
LABORATORY ANALYSIS TEST RESULTS
Filter Media 0.7 mm - 1.4 mm, U.C.= 1.4 E.S.=0.74 (pdf)
Filter Media 0.7 mm - 2.0 mm, U.C.= 1.52 E.S.=0.9 (pdf)
Filter Media 1.0 mm - 2.0 mm, CU= 1.4 E.S.=0.99 (pdf)
Official Test Ceritificate (Ghana Water Company Ltd)