Dimensions,mass per unit length and permissible deviatiions and shape product according to Egyption standards ES:262-2/2009

Size				10mm	12mm	14mm	16mm	18mm	20mm	22mm	25mm
1	Mass per unit length (kg/m)	Nominal		0.617	0.888	1.210	1.580	2.000	2.470	2.980	3.850
		min		0.580	0.835	1.150	1.501	1.900	2.347	2.831	3.696
		max		0.654	0.941	1.271	1.659	2.100	2.594	3.129	4.004
2	Transverse rib (mm)	Height   mm	min	0.65	0.78	0.91	1.04	1.17	1.30	1.43	1.63
			max	1.20	1.44	1.68	1.92	2.16	2.40	2.64	3.00
		Width   mm	min	0.80	0.96	1.12	1.28	1.44	1.60	1.76	2.00
			max	1.20	1.44	1.68	1.92	2.16	2.40	2.64	3.00
3	Longitudinal  rib (mm)	Height   mm	min	0.30	0.36	0.42	0.48	0.54	0.60	0.66	0.75
			max	1.20	1.44	1.68	1.92	2.16	2.40	2.64	3.00
		Width   mm	min	0.80	0.96	1.12	1.28	1.44	1.60	1.76	2.00
			max	2.0	2.4	2.8	3.2	3.6	4.0	4.40	5.00
4	Rib spacing,c  range (mm)	Min		5	6	7	8	9	10	11	12.50
		Max		8	9.6	11.2	11.8	14.4	16	17.6	20.00
5	The spacing between missing ribs		Max	2.5	3	3.5	4	4.5	5	5.5	6.25
6	Size  Color			Green	Red	Without	Blue	White	Brown	Yellow	Gray
7	Transverese-rib flank inclination , α			α ≥35◦