OT seriesOT-10OT-20OT-33
S content %90 min.80 min.66 min.
IS content %(On total S)90 min.90 min.90 min.
Oil content %10±120±133±1
Acid(as H2SO4) %0.05 max
Ash %0.15 max
100mesh
Sieve residues %		0.20%
Average particle size6-8μm