“U.S. No. 2 Spanish” consists of shelled Spanish type peanut kernels which may be split or broken, but which are free from foreign material, damage, and minor defects, and which will not pass through a screen having  16/64 inch round openings.
    
    
        
        (a) 
         In order to allow for variations incident to proper grading and handling, the following tolerances, by weight, shall be permitted:
     
    
        
        (1) 
         2 percent for other types of peanuts;
     
    
        
        (2) 
         2.5 percent for damaged or unshelled peanuts and minor defects;
     
    
        
        (3) 
         0.2 percent for foreign material; and,
     
    
        
        (4) 
         6 percent for sound peanuts and portions of peanuts which will pass through the prescribed screen.