Siever Number		Openning (in mm)		Cumulative Retained Particles		Passing Particles	Observation
AFNOR	ASTM	AFNOR	(g)	(g)	(%)	(%)	Observation
3’’	50	76.2	80
21/2’’	49	63.5	63
2’’	48	50.8	50
11/2’’	47	38.1	40
11/4’’	46	31.7	31.5
1’’	45	25.4	25
¾’’	44	19.1	20
2/3’’	43	16.9	16
½’’	42	12.7	12.5
3/8’’	41	9.52	10
1/3’’	40	7.93	8
¼’’	39	6.35	6.3
3/16’’	38	4.76	5	0	0	100
5	37	4	4	194	10	90
6	36	3.36	3.15	392	20	80
8	35	2.38	2.5	614	30	70
10	34	2	2	798	40	60
12	33	1.68	1.6	962	48	52
16	32	1.19	1.25	1101	55	45
18	31	1	1	1226	61	39
20	30	0.84	0.8	1332	67	33
30	29	0.59	0.63	1442	72	28
35	28	0.5	0.5	1531	76	24
40	27	0.4	0.4	1607	80	20
50	26	0.315	0.315	1689	84	16
60	25	0.25	0.25	1752	87	13
70	24	0.2	0.2	1798	90	10
100	23	0.16	0.16	1851	92	8
120	22	0.125	0.125	1912	95	5
140	21	0.1	0.1	1933	97	3
200	20	0.08	0.08	1972	98	2