I 2 of 5
Barcode – Interleaved 2 of 5
Also known as (USS ITF 2/5, I-2/5 or ITF 2of5). Interleaved 2 of 5 is a continuous two-width barcode symbology encoding digits. Commonly used to encode case number SCC14. Interleaved 2 of 5 is based on Standard 2 of 5 symbology, but uses both bar and space width to encode information so the density of ITF25 is much higher.
It is primarily used in the warehouse industry. Interleaved 2 of 5 encodes any even number of numeric characters in the width of both bars and spaces.
It is called “Interleaved” because 2 characters are encoded in a unit of 5 bars and spaces. The even position character is encoded into bars whilst the odd position character is encoded into spaces. Thus, Interleaved 2 of 5 symbology can only encode data elements with even number length. In many cases, the Code 128 barcode offers an advantage over the i2of5 barcode because it encodes even and odd numbers of digits, as well as letters and symbols, with equal or greater density.