|
|
|
|
|
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|
The standard of grain size and its component |
|
grain size
|
(um) mesh size |
average size(um)
|
remaining on less than %
|
remaining on more than %
|
|
100/120
|
150/125
|
D151
|
10
|
87
|
|
120/140
|
125/106
|
D126
|
10
|
87
|
|
140/170
|
106/90
|
D107
|
11
|
85
|
|
170/200
|
90/75
|
D91
|
11
|
85
|
|
200/230
|
75/63
|
D76
|
11
|
85
|
|
230/270
|
63/53
|
D64
|
11
|
85
|
|
270/325
|
53/45
|
D54
|
15
|
80
|
|
325/400
|
45/38
|
D46
|
15
|
80
|
|
400/500
|
40/32
|
D35
|
19
|
75
|
|
500/600
|
32/25
|
D30
|
19
|
75
|
|
|
|
| |
|
