Sieve (mm)

Strainer

ΙΈ mm

Module AFNOR

Improved Djiri sand

Improved Mfilou sand

Improved Congo River sand

5

6.3

38

100

100

100

2.5

3.15

35

91

99

87

1.25

1.6

32

80

79

78

0.63

0.8

29

70

70

69

0.315

0.40

26

48

53

46

0.1

0.200

23

21

24

8

0.08

0.1

20

4

4

1