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Bar Code Interleaved 2 of 5

Interleaved 2 of 5 is a numeric-only symbology. The "interleaved" refers to the fact that two characters can be represented in the same space by using the black bars to represent the first character and the white spaces to represent the second character. This means, of course, that an even number of digits are always required for Interleaved 2 of 5. When an odd number of digits needs to be represented, a leading zero or “null” character is usually added to account for this lack of parity. A density of 22.0 cpi may be achieved but it is important
that this dense code be checked for compatibility with
the scanner to be used.

Applications For Interleaved 2 of 5:

  • Warehousing and heavy-industry for product and container identification
  • If an alpha indicator or special digit is required in the application this code should be avoided
  • Automotive

Five elements, two wide. A character will be either five spaces or five bars.


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Watson has been producing barcodes for Columbia University Libraries for almost a decade. Some of the special labels we have requested required several discussions, but Watson always came up with a perfectly workable solution.

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I just wanted to thank you for all of your help, we received the barcodes and they were perfect. We look forward to our future business with Watson Label Products in the near future!

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HP Printers

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