Description of DUN-14The DUN-14 (Distribution Unit Number) is not really a barcode type. It's a numbering system for shipping containers that uses other barcode symbology. The DUN-14 uses the ITF-14 or the EAN-14 symbol set. Modern installations always use the EAN-14 to encode the DUN-14.
A short comparison of ITF-14 with EAN-14. The number "3071234500001" is coded as EAN-14 first:
And now the same number as ITF-14:
The DUN-14 has the following data encoded: