“U.S. No. 1” consists of tangerines which meet the following requirements:
(1)
Discoloration: Not more than one-third of the surface, in the aggregate, may be affected by discoloration. (See § 51.1828.);
(2)
Unhealed skin breaks; and,
(c)
Free from damage caused by:
(6)
Dirt or other foreign material;
(8)
Dryness or mushy condition;