“U.S. No. 2” consists of tangerines which meet the following requirements:
    
    
    
        
        (1) 
         Discoloration: Not more than one-half of the surface, in the aggregate, may be affected by discoloration. (See  § 51.1828.);
     
    
    
    
    
        
        (5) 
         Reasonably well colored.
     
    
    
    
        
        (2) 
         Unhealed skin breaks; and,
     
    
    
        
        (c) 
         Free from serious damage caused by:
     
    
    
    
    
    
    
        
        (6) 
         Dirt or other foreign material;
     
    
    
        
        (8) 
         Dryness or mushy condition;