DUN-14, ITF-14, SCC-14

The code is based in the symbology Interleaved 2 of 5 (ITF) and it is a system for identifying containers, that begins with a number known as the Packaging Indicator.

This type of code is 14 digits long and includes the UPC or EAN product code plus the identifier for the type of container. In the case of an UPC code, a zero is added to the beginning of the manufacturer number to provide 12 digits, compatible with the EAN numbering. The check digit is calculated using the "modulo 10" format, as follow:

• Type of container =1
• UPC Code of the product = 01234567890 (11 digits - without check digit)
• Final number = 1 00 12345 67890 X
• The check digit (X) is the first position from right to the left.
• 1. From the right, add up the numbers in the even positions (2,4,6,8,10,12 and 14).
• 0 + 8 + 6 + 4 + 2 + 0 + 1 = 21
• 2. Multiply by 3. (21 x 3 = 63)
• 3. Add the numbers in the odd positions (3,5,7,9,11, and 13)
• 9 + 7 + 5 + 3 + 1 + 0 = 25
• 4. Add with the result of the multiplication: 25 + 63 = 88
• 5. Round up to nearest multiple of ten: 88 + X = 90
• The Check Digit is the number to reach the multiple of ten: X = 2
• The final number is: 1 00 12345 67890 2