U.S. No. 1.

§ 51.752 U.S. No. 1. “U.S. No. 1” consists of grapefruit which meet the following requirements: (a) Basic requirements: (1) Discoloration: Not more than one-third of the surface, in the aggregate, may be affected by discoloration. (See § 51.770.); (2) Fairly smooth texture; (3) Fairly well colored; (4) Firm; (5) Mature; (6) Similar varietal characteristics; and, (7) Well formed. (b) Free from: (1) Decay; (2) Unhealed skin breaks; and, (3) Wormy fruit. (c) Free from damage caused by: (1) Ammoniation; (2) Bruises; (3) Buckskin; (4) Caked melanose; (5) Dirt or other foreign material; (6) Disease; (7) Dryness or mushy condition; (8) Green spots; (9) Hail; (10) Insects; (11) Oil spots; (12) Scab; (13) Scale; (14) Scars; (15) Skin breakdown; (16) Sprayburn; (17) Sprouting; (18) Sunburn; (19) Thorn scratches; and, (20) Other means. (d) For tolerances see § 51.760.