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F series of FEPA - Standard 42-GB-1984
Grits Sieve1 Sieve2 Sieve3 Sieve3+4 S5/Pan MI ( % ) Transmittance
CG # Mesh Max. Mesh Min. Mesh Min. 3%max Max Min
24 16 20 25% 25 45% 30 65% 35 0.03 45
30 18 25 25% 30 45% 35 65% 40 0.03 45
36 20 30 25% 35 45% 40 65% 45 0.03 45
46 30 40 30% 45 40% 50 65% 60 0.03 45
54 35 45 30% 50 40% 60 65% 70 0.03 45
60 40 50 30% 60 40% 70 65% 80 0.03 45
70 45 60 25% 70 40% 80 65% 100 0.03 45
80 50 70 25% 80 40% 100 65% 120 0.02 40
90 60 80 20% 100 40% 120 65% 140 0.02 40
100 70 100 20% 120 40% 140 65% 200 0.02 35
120 80 120 20% 140 40% 170 65% 230 0.02 35
150 100 140 20% 200 40% 230 65% 325 0.02 30
180 120 170 15% 230 40% 270 65%   0.02 30
220 140 200 15% 270 40% 325 60%   0.02 30