Siever Number		Openning (in mm)		Cumulative Retained Particles		Passing Particles	Observation
ASTM	AFNOR	ASTM	AFNOR	(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			100
3/16’’	38	4.76	5	16	1	99
5	37	4	4	34	2	98
6	36	3.36	3.15	58	3	97
8	35	2.38	2.5	98	5	95
10	34	2	2	150	7	93
12	33	1.68	1.6	247	12	88
16	32	1.19	1.25	409	20	80
18	31	1	1	617	31	69
20	30	0.84	0.8	826	41	59
30	29	0.59	0.63	1086	54	46
35	28	0.5	0.5	1298	65	35
40	27	0.4	0.4	1466	73	27
50	26	0.315	0.315	1599	80	20
60	25	0.25	0.25	1737	87	13
70	24	0.2	0.2	1811	91	9
100	23	0.16	0.16	1867	93	7
120	22	0.125	0.125	1900	95	5
140	21	0.1	0.1	1921	96	4
200	20	0.08	0.08	1937	97	3