SSM - Ch. 3. Examination and Description of Soil Profiles ...
Material has a total of 25 percent or more very coarse and coarse sand and less than 50 percent any other single grade of sand. Sand.—Material has a total of 25 percent or more very coarse, coarse, and medium sand, a total of less than 25 percent very coarse and coarse sand, and less than 50 percent fine sand and less than 50 percent very ...