Grades and grade requirements for sorghum

Grading factors Grades U.S. Nos. 1 1 2 3 4 Minimum pound limits of Test weight per bushel 57 55 53 51 Maximum percent limits of Damaged kernels: Heat (part of total) 0.2 0.5 1 3 Total 2 5 10 15 Broken kernels and foreign material: Foreign material (part of total) 1 2 3 4 Total 3 6 8 10 Maximum count limits of Other material: Animal filth 9 9 9 9 Castor beans 1 1 1 1 Crotalaria seeds 2 2 2 2 Glass 1 1 1 1 Stones 2 7 7 7 7 Unknown foreign substance 3 3 3 3 Cockleburs 7 7 7 7 Total 3 10 10 10 10 U.S. Sample grade is sorghum that: (a) Does not meet the requirements for U.S. Nos. 1, 2, 3, or 4; or (b) Has a musty, sour, or commercially objectionable foreign odor (except smut odor); or (c) Is badly weathered, heating, or distinctly low quality. 1 Sorghum which is distinctly discolored shall not grade higher than U.S. No. 3. 2 Aggregate weight of stones must also exceed 0.2 percent of the sample weight. 3 Includes any combination of animal filth, castor beans, crotalaria seeds, glass, stones, unknown foreign substance or cockleburs.

[72 FR 39733, July 20, 2007]