Mesh Size Conversion Chart, High Purity Graphite, Organic / Inorganic Compound, Macro Minerals, Trace Minerals, Mumbai, India

B.S.S.	A.S.T.M.	Size		Perforated Sieves Coarse Size
(4/10/1969)	(11-70)	I.S. (469/1972)	Microns	mm	Inches
4	5	4.00 mm	4000	4.75	3/16
5	6	3.35 mm	3353	6.3	1/4
6	7	2.80 mm	2812	8.0	5/16
7	8	2.36 mm	2411	10.0	3/8
8	10	2.00 mm	2057	12.5	1/2
10	12	1.70 mm	1680	16.0	5/8
12	14	1.40 mm	1405	20.0	3/4
14	16	1.18 mm	1204	25.0	1
16	18	1.00 mm	1003	31.5	1.1/4
18	20	.850 mm	850	40.0	1.1/2
22	25	.710 mm	710	50.0	2
25	30	.600 mm	600	63.0	2.1/2
30	35	.500 mm	500	80.0	3
36	40	.425 mm	420	100.0	4
44	45	.355 mm	355
52	50	.300 mm	300
60	60	.250 mm	250
72	70	.212 mm	210
85	80	.180 mm	180
100	100	.150 mm	150
120	120	.125 mm	120
150	140	.106 mm	105
170	170	0.90 mm	90
200	200	0.75 mm	75
240	230	.063 mm	63
300	270	.053 mm	53
350	325	.045 mm	45
400	400	0.37 mm	37
500	-	0.25 mm	25