Standard Sieve Sizes

September.17 Coal

Sieving is a practical and cost effective way to determine particle size distributions for coarser materials. Two accepted scales are the US Sieve and Tyler Equivalent, sometimes called Tyler Mesh Size or Tyler Standard Sieve Series. The most common mesh opening sizes for these scales are given in the table below and provide an indication of particle sizes.

Mesh Size (microns)	TYLER	ASTM-E11	BS-410	DIN-4188
µm	Mesh	No.	Mesh	mm
5	2500		2500	0.005
10	1250		1250	0.010
15	800		800	0.015
20	625		625	0.020
22				0.022
25	500		500	0.025
28				0.028
32				0.032
36				0.036
38	400	400	400
40				0.040
45	325	325	350	0.045
50				0.050
53	270	270	300
56				0.056
63	250	230	240	0.063
71				0.071
75	200	200	200
80				0.080
90	170	170	170	0.090
100				0.100
106	150	140	150
112				0.112
125	115	120	120	0.125
140				0.140
150	100	100	100
160				0.160
180	80	80	85	0.180
200				0.200
212	65	70	72
250	60	60	60	0.250
280				0.280
300	48	50	52
315				0.315
355	42	45	44	0.355
400				0.400
425	35	40	36
450				0.450
500	32	35	30	0.500
560				0.560
600	28	30	25
630				0.630
710	24	25	22	0.710
800				0.800
850	20	20	18
900				0.900
1000	16	18	16	1.0
1120				1.12
1180	14	16	14
1250				1.25
1400	12	14	12	1.4
1600				1.6
1700	10	12	10
1800				1.8
2000	9	10	8	2.0
2240				2.24
2360	8	8	7
2500				2.5
2800	7	7	6	2.8
3150				3.15
3350	6	6	5
3550				3.55
4000	5	5	4	4.0
4500				4.5
4750	4	4	3.5
5000				5.0

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