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GRAIN SIZE DISTRIBUTION
Mesh size, mm Tolerance range, %
0.71
0.50 max. 0.5
0.355 max. 10.0
0.25 50.0 – 60.0
0.18 30.0 – 40.0
0.125 max. 10.0
0.09 max. 0.5
0.063 max. 0.1
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Medium grain size, mm 0.25 – 0.28
Uniformity ratio, % min. 90
AFS number 50 – 55
CHEMICAL ANALYSIS
SiO2, % min. 98.00
Al2O3, % max. 1.00
Fe2O3, % max. 0.10
Loss on ignition, % max. 0.20