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International Sieve Comparison Table
Select Standard        Value :
Inter-national-ISO -1987 American-ASTM -1987 British-BSI -1986 French-AFNOR -1987 German-DIN -1977
S.No. Opening mm/µm Alter-native Inch/Mesh Aperture mm/µm Equi-valent BS MESH Opening mm/µm Equivalent TAMIS No. Aperture mm Approx DIN no.

International Sieve Comparison Table
Select Standard        Value :
Inter-national-ISO -1987 American-ASTM -1987 British-BSI -1986 French-AFNOR -1987 German-DIN -1977
S.No. Opening mm/µm Alter-native Inch/Mesh Aperture mm/µm Equi-valent BS MESH Opening mm/µm Equivalent TAMIS No. Aperture mm Approx DIN no.
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1 500µm 35 sieve 500µm 30 500µm 28 0.5 12
2 - - - - 450µm - 0.45 -
3 425µm 40 sieve 425µm 36 - - 0.43 14
4 - - - - 400µm 27 0.4 16
5 355µm 45 sieve 355µm 44 355µm - 0.355 -
6 - - - - - - 0.340* 18E
7 - - - - 315µm 26 0.315 -
8 300µm 50 sieve 300µm 52 - - 0.300* 20
9 - - - - 280µm - 0.28 -
10 250µm 60 sieve 250µm 60 250µm 25 0.25 24
11 212µm 70 sieve 212µm 72 224µm 72 0.224 -
12 - - - - 200µm 24 0.2 30
13 180µm 80 sieve 180µm 85 180µm - 0.18 -
14 - - - - - - 0.170* 35E
15 - - - - 160µm 23 0.16 -
16 150µm 100 sieve 150µm 100 - - 0.150* 40
17 - - - - 140µm - 0.14 -
18 125µm 120 sieve 125µm 120 125µm 22 0.125 -
19 - - - - - - 0.120* 50
20 106µm 140 sieve 106µm 150 112µm - 0.112 -
21 - - - - 100µm 21 0.1 60
22 90µm 170 sieve 90µm 170 90µm - 0.09 70
23 - - - - 80µm 20 0.08 -
24 75µm 200 sieve 75µm 200 - - 0.075* 80
25 - - - - 71µm - 0.071 -
26 - - - - - - 0.067* 90E
27 63µm 230 sieve 63µm 240 63µm 19 0.063 -
28 - - - - - - 0.060* 100
29 53µm 270 sieve 53µm 300 56µm - 0.056 110
30 - - - - 50µm 18 0.05 120
31 45µm 325 sieve 45µm 350 45µm - 0.045 -
32 38µm 400 sieve 38µm 400 40µm 17 0.04 -
33 - - - - 36µm - 0.036 130
34 32µm 450 sieve 32µm 440 32µm - 0.032 -
35 25µm 500 sieve - - 25µm - 0.025 200
36 20µm 635 sieve - - 20µm - 0.02 -
37 16µm - - - - - 0.016 -
38 10µm - - - - - 0.01 -
39 26.50mm 1.06" 26.50mm - 25.0mm - 25 -
40 25.00*mm 1" - - 22.40mm - 22.4 -
41 22.40mm 7/8" 22.40mm - 20.00mm - 20.00 -
42 19.00mm 3/4" 19.00mm - 18.00mm - 18 -
43 16.00mm 5/8" 16.00mm - 16.00mm - 16 -
44 13.20mm 0.530" 13.20mm - 14.00mm - 14 -
45 12.50mm* 1/2" - - 12.50mm - 12.50 -
46 11.20mm 7/16" 11.20mm - 11.20mm - 11.2 -
47 9.50mm 3/8" 9.50mm - 10.00mm - 10 -
48 8.00mm 5/16" 8.00mm - 8.00mm - 8 -
49 6.70mm 0.265" 6.70mm - 7.10mm - 7.1 -
50 6.30mm* 1/4" - - 6.30mm - 6.3 -
51 5.60mm 3-1/2 sieve 5.60mm 3 5.60mm - 5.6 -
52 4.75mm 4 sieve 4.75mm 3-1/2 5.00mm 38 5 -
53 - - - - 4.50mm - 4.5 -
54 4.00mm 5 sieve 4.00mm 4 4.00mm 37 4 2E
55 3.35mm 6 sieve 3.35mm 5 3.55mm - 3.55 -
56 - - - - 3.15mm 36 3.15 -
57 2.80mm 7 sieve 2.80mm 6 2.80mm - 2.8 -
58 2.36mm 8 sieve 2.36mm 7 2.50mm 35 2.5 -
59 - - - - 2.24mm - 2.24 -
60 2.00mm 10 sieve 2.00mm 8 2.00mm 34 2 3E
61 1.70mm 12 sieve 1.70mm 10 1.80mm - 1.8 -
62 - - - - 1.60mm 33 1.6 -
63 - - - - - - 1.50* 4
64 1.40mm 14 sieve 1.40mm 12 1.40mm - 1.4 -
65 1.18mm 16 sieve 1.18mm 14 1.25mm 32 1.25 -
66 - - - - - - 1.20* 5
67 - - - - 1.12mm - 1.12 -
68 1.00mm 18 sieve 1.00mm 16 1.00mm 31 1 6
69 850µm 20 sieve 850µm 18 900µm - 0.9 -
70 - - - - 800µm 30 0.8 -
71 - - - - - - 0.750* 8
72 710µm 25 sieve 710µm 22 710µm - 0.71 -
73 - - - - 630µm 29 0.63 -
74 600µm 30 sieve 600µm 25 - - 0.600* 10
75 - - - - 560µm - 0.56 -
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