Grades and Grade Requirements for all Classes of Wheat

 

Grades U.S. Nos.
Grading Factors
1
2
3
4
5
Minimum pound limits Nos.
Test Weights
Hard Red Spring wheat or White Club wheat lbs/bu
58.0
57.0
55.0
53.0
50.0
All other classes and sub-classes lbs/bu
60.0
58.0
56.0
54.0
51.0
Maximum percent limits of:
Defects
Damaged kernels
Heat
(part of total)
0.2
0.2
0.5
1.0
3.0
Total
2.0
4.0
7.0
10.0
15.0
Foreign material
0.4
0.7
1.3
3.0
5.0
Shrunken and Broken Kernels
3.0
5.0
8.0
12.0
20.0
Total1
3.0
5.0
8.0
12.0
20.0
Wheat of other classes2
Contrasting classes
1.0
2.0
3.0
10.0
10.0
Total3
3.0
5.0
10.0
10.0
10.0
Stones
0.1
0.1
0.1
0.1
0.1
Maximum count limits of:
Other Material
Animal filth
1
1
1
1
1
Castor beans
1
1
1
1
1
Crotalaria seeds
2
2
2
2
2
Glass
0
0
0
0
0
Stones
3
3
3
3
3
Unknown foreign substance
3
3
3
3
3
Total4
4
4
4
4
4
Insect-damaged kernels in 100 grams
31
31
31
31
31

U.S. Sample Grade

Wheat that:

  1. Does not meet the requirements for U.S. Nos. 1, 2, 3, 4 or 5; or
  2. Has a musty, sour, or commercially objectionable foreign odor (except smut or garlic odor); or
  3. Is heating or of distinctly low quality.

  1. Includes damaged kernels (total), foreign material, and shrunken and broken kernels.
  2. Unclassed wheat of any grade many contain not more than 10.0 percent of wheat of other classes.
  3. Includes contrasting classes.
  4. Includes any combination of animal filth, castor beans, crotalaria seeds, glass, stones, or unknown foreign substance.


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