Minimum limits-- Maximum limits--
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Heat-
Grade Test weight Sound oats damaged Foreign Wild oats
per bushel (percent) kernels material (percent)
(pounds) (percent) (percent)----------------------------------------------------------------------------------------------------------------U.S. No. 1..................................... 36.0 97.0 0.1 2.0 2.0U.S. No. 2..................................... 33.0 94.0 0.3 3.0 3.0U.S. No. 3 \1\................................. 30.0 90.0 1.0 4.0 5.0U.S. No. 4 \2\................................. 27.0 80.0 3.0 5.0 10.0
U.S. Sample grade--
U.S. Sample grade are oats which:
(a) Do not meet the requirements for the grades U.S. Nos. 1, 2, 3, or 4; or
(b) Contain 8 or more stones which have an aggregate weight in excess of 0.2 percent of the sample weight, 2
or more pieces of glass, 3 or more crotalaria seeds (Crotalaria spp.), 2 or more castor beans (Ricinus
communis L.), 4 or more particles of an unknown foreign substance(s) or a commonly recognized harmful or
toxic substance(s), 8 or more cocklebur (Xanthium spp.) or similar seeds singly or in combination, 10 or
more rodent pellets, bird droppings, or equivalent quantity of other animal filth per 1\1/8\ to 1\1/4\
quarts of oats; or
(c) Have a musty, sour, or commercially objectionable foreign odor (except smut or garlic odor); or
(d) Are heating or otherwise of distinctly low quality.----------------------------------------------------------------------------------------------------------------\1\ Oats that are slightly weathered shall be graded not higher than U.S. No. 3.\2\ Oats that are badly stained or materially weathered shall be graded not higher than U.S. No. 4.
Special Grades and Special Grade Requirements