Minor defects.

Minor defects means that the peanut kernel is not damaged but is affected by one or more of the following: (a) Skin discoloration which is dark brown, dark gray, dark blue or black and covers more than one-fourth of the surface; (b) Flesh discoloration which is darker than a light yellow color or consists of more than a slight yellow pitting of the flesh; (c) Sprout extending more than one-eighth of an inch from the tip of the kernel; and, (d) Dirt when the surface of the kernel is distinctly dirty, and its appearance is materially affected.