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Practice calculating the check digit for ITF-14 barcodes using the GS1 Mod 10 algorithm. ITF-14 is used on outer packaging and shipping cartons, encoding a 14-digit GTIN with the same check digit algorithm as EAN-13.

  



  

  
  

    
Algorithm

    
      GS1 Modulo 10
    
  

  
  
  

    
Symbology

    
      ITF-14