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◦