Compliance with requirements for the size and the various quality factors is based on the following sample unit sizes for the applicable factor:
    
    
        
        (a) 
         Size, color, pits, and character—20 ounces of drained cherries.
     
    
        
        (b) 
         Defects (other than harmless extraneous material)—100 cherries.
     
    
        
        (c) 
         Harmless extraneous material—The total contents of each container in the sample.