Partial content of China National Standard of Maize Quality
1. Terms and Definitions
Unsound kernel includes:
Injured kernel, spotted kernel, broken kernel, sprouted kernel, moldy kernel and heat-damaged kernel (nature heat-damaged kernel and drying heat-damaged kernel）
Foreign matter includes:
Throughs (passed through D=3.0mm round-hole sieve), inorganic impurity, and organic impurity.
2. National Standard of Maize Quality GB1353-2009
|
Grade |
Test weight (g/L) |
Unsound kernel, % |
Foreign matter content % |
Moisture content % |
Color and odor |
|
|
Total |
Of which: moldy kernel |
|||||
|
1 |
≥720 |
≤4.0 |
≤2.0 |
≤1.0 |
≤14.0 |
Normal |
|
2 |
≥685 |
≤6.0 |
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|
3 |
≥650 |
≤8.0 |
||||
|
4 |
≥620 |
≤10.0 |
||||
|
5 |
≥590 |
≤15.0 |
||||
|
Substandard |
＜590 |
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