Project	100	150	200	250	300	350	400	450	500	600	800	Remarks
Mass per unit bias%	-8	-8	-8	-8	-7	-7	-7	-7	-6	-6	-6
Thickness≥	0.9	1.3	1.7	2.1	2.4	2.7	3.0	3.3	3.6	4.1	5.0
Breaking force≥	2.5	4.5	6.5	8.0	9.5	11.0	12.5	14.0	16.0	19.0	25.0
CBR bursting strenth ≥	0.3	0.6	0.9	1.2	1.5	1.8	2.1	2.4	2.7	3.2	4.0
Tearing force ≥	0.08	0.12	0.16	0.20	0.24	0.28	0.33	0.38	0.42	0.46	.060
Width bias%	-0.5
Elongation at break %	25-1000.07-0.2
EOS 090mm
Coefficient of vertical permeability ,cm/s	k×(10-1~10-3)											K=1.0-9.9