Grades U.S. Nos. \1\
Grading factors ---------------------------
1 2 3 4------------------------------------------------------------------------
Minimum pound limits of------------------------------------------------------------------------Test weight per bushel...................... 57.0 55.0 53.0 51.0------------------------------------------------------------------------
Maximum percent limits of------------------------------------------------------------------------Damaged kernels:
Heat (part of total)...................... 0.2 0.5 1.0 3.0
Total................................... 2.0 5.0 10.0 15.0Broken kernels and foreign material:
Foreign material (part of total).......... 1.0 2.0 3.0 4.0
Total................................... 3.0 6.0 8.0 10.0------------------------------------------------------------------------
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]
Special Grades and Special Grade Requirements