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GRAIN SIZE DISTRIBUTION
Mesh size, mm Tolerance range, %
0.71 max. 0.5
0.50 max. 10.0
0.355 40.0 – 60.0
0.25 20.0 – 40.0
0.18 max. 5.0
0.125 max. 2.0
0.09 max. 1.0
0.063 max. 0.5
bottom max. 0.1
Medium grain size, mm 0.35 – 0.40
Uniformity ratio, % min. 80
AFS number 35 – 40
CHEMICAL ANALYSIS
SiO2, % min. 99.00
Al2O3, % max. 0.50
Fe2O3, % max. 0.10
Loss on ignition, % max. 0.20