|
U.S.A.
SIEVE
SERIES
and
TYLER
EQUIVALENTS
A. S.
T. M.
-E-11-70
|
|
Sieve
Designation
|
Sieve
Opening
|
Nominal
Wire Diameter
|
Tyler
Screen
Scale
Equiv.
Design-
ation
|
|
Standard(a)
|
Alternate
|
mm
|
equiv-
alent
|
mm
|
equi-
valent
|
|
125 mm
|
5.in.
|
125
|
5
|
8
|
0.315
|
|
|
106 mm
|
4.24 in.
|
106
|
4.24
|
6.4
|
0.252
|
|
|
100 mm
|
4.0 in. (b)
|
100
|
4
|
6.3
|
0.248
|
|
|
90 mm
|
3 1/2 in.
|
90
|
3.5
|
6.08
|
0.2394
|
|
|
75 mm
|
3.0 in.
|
75
|
3
|
5.8
|
0.2283
|
|
|
63 mm
|
2 1/2 in.
|
63
|
2.5
|
5.5
|
0.2165
|
|
|
53 mm
|
2.12 in.
|
53
|
2.12
|
5.15
|
0.2028
|
|
|
50 mm
|
2.0 in. (b)
|
50
|
2
|
5.05
|
0.1988
|
|
|
45 mm
|
1 3/4 in.
|
45
|
1.75
|
4.85
|
0.1909
|
|
|
37.5 mm
|
1 1/2 in.
|
37.5
|
1.5
|
4.59
|
0.1807
|
|
|
31.5 mm
|
1 1/4 in.
|
31.5
|
1.25
|
4.23
|
0.1665
|
|
|
26.5 mm
|
1.06 in.
|
26.5
|
1.06
|
3.9
|
0.1535
|
1.050 in.
|
|
25.0 mm
|
1.0 in. (b)
|
25
|
1
|
3.8
|
0.1496
|
|
|
22.4 mm
|
7/8 in.
|
22.4
|
0.875
|
3.5
|
0.1378
|
.883 in.
|
|
19.0 mm
|
3/4 in.
|
19
|
0.75
|
3.3
|
0.1299
|
.742 in.
|
|
16.0 mm
|
5/8 in.
|
16
|
0.625
|
3
|
0.1181
|
.624 in.
|
|
13.2 mm
|
.530 in.
|
13.2
|
0.53
|
2.75
|
0.1083
|
.525 in.
|
|
12.5 mm
|
1/2 in. (b)
|
12.5
|
0.5
|
2.67
|
0.1051
|
|
|
11.2 mm
|
7/16 in.
|
11.2
|
0.438
|
2.45
|
0.0965
|
.441 in.
|
|
9.5 mm
|
3/8 in.
|
9.5
|
0.375
|
2.27
|
0.0894
|
.371 in.
|
|
8.0 mm
|
5/16 in.
|
8
|
0.312
|
2.07
|
0.0815
|
2 1/2 mesh
|
|
6.7 mm
|
.265 in.
|
6.7
|
0.265
|
1.87
|
0.0736
|
3.0 mesh
|
|
6.3 mm
|
1/4 in. (b)
|
6.3
|
0.25
|
1.82
|
0.0717
|
|
|
5.6 mm
|
No. 3 1/2 ©
|
5.6
|
0.223
|
1.68
|
0.0661
|
3 1/2 mesh
|
|
4.75 mm
|
No. 4
|
4.75
|
0.187
|
1.54
|
0.0606
|
4 mesh
|
|
4.00 mm
|
No. 5
|
4
|
0.157
|
1.37
|
0.0539
|
5 mesh
|
|
3.35 mm
|
No. 6
|
3.35
|
0.132
|
1.23
|
0.0484
|
6 mesh
|
|
2.80 mm
|
No. 7
|
2.8
|
0.111
|
1.1
|
0.043
|
7 mesh
|
|
2.36 mm
|
No. 8
|
2.36
|
0.0937
|
1
|
0.0394
|
8 mesh
|
|
2.00 mm
|
No. 10
|
2
|
0.0787
|
0.9
|
0.0354
|
9 mesh
|
|
1.70 mm
|
No. 12
|
1.7
|
0.0661
|
0.81
|
0.0319
|
10 mesh
|
|
1.40 mm
|
No. 14
|
1.4
|
0.0555
|
0.725
|
0.0285
|
12 mesh
|
|
1.18 mm
|
No. 16
|
1.18
|
0.0469
|
0.65
|
0.0256
|
14 mesh
|
|
1.00 mm
|
No. 18
|
1
|
0.0394
|
0.58
|
0.02285
|
16 mesh
|
|
850 um
|
No. 20
|
0.85
|
0.0331
|
0.51
|
0.0201
|
20 mesh
|
|
710 um
|
No. 25
|
0.71
|
0.0278
|
0.45
|
0.0177
|
24 mesh
|
|
600 um
|
No. 30
|
0.6
|
0.0234
|
0.39
|
0.0154
|
28 mesh
|
|
500 um
|
No. 35
|
0.5
|
0.0197
|
0.34
|
0.0134
|
32 mesh
|
|
425 um
|
No. 40
|
0.425
|
0.0165
|
0.29
|
0.0114
|
35 mesh
|
|
355 um
|
No. 45
|
0.355
|
0.0139
|
0.247
|
0.0097
|
42 mesh
|
|
300 um
|
No. 50
|
0.3
|
0.0117
|
0.215
|
0.0085
|
48 mesh
|
|
250 um
|
No. 60
|
0.25
|
0.0098
|
0.18
|
0.0071
|
60 mesh
|
|
212 um
|
No. 70
|
0.212
|
0.00083
|
0.152
|
0.006
|
65 mesh
|
|
180 um
|
No. 80
|
0.18
|
0.007
|
0.131
|
0.0052
|
80 mesh
|
|
150 um
|
No. 100
|
0.15
|
0.0059
|
0.11
|
0.0043
|
100 mesh
|
|
125 um
|
No. 120
|
0.125
|
0.0049
|
0.091
|
0.0036
|
115 mesh
|
|
106 um
|
No. 140
|
0.106
|
0.0041
|
0.076
|
0.003
|
150 mesh
|
|
90 um
|
No. 170
|
0.09
|
0.0035
|
0.064
|
0.0025
|
170 mesh
|
|
75 um
|
No. 200
|
0.075
|
0.0029
|
0.053
|
0.0021
|
200 mesh
|
|
63 um
|
No. 230
|
0.063
|
0.0025
|
0.044
|
0.0017
|
250 mesh
|
|
53 um
|
No. 270
|
0.053
|
0.0021
|
0.037
|
0.0015
|
270 mesh
|
|
45 um
|
No 325
|
0.045
|
0.0017
|
0.03
|
0.012
|
325 mesh
|
|
38 um
|
No. 400
|
0.038
|
0.0015
|
0.025
|
0.001
|
400 mesh
|
|
|
|
(a)
These standard designations correspond to the values for test sieve
apertures recommended by the International Standards Organization Geneva,
Switzerland.
|
|
(b)
These sieves are not in the fourth root of 2 Series, but they have been included
because they are in common usage.
|
|
(c)
These numbers (3 1/2 to 400) are the approximate number of openings per
linear inch but it is preferred that the sieve be identified by the
standard designation in millimeters or um.
|
|
