The ITF-14 barcode was developed to encode a Global Trade Item Number. The ITF barcode has the nominal size of (152*44mm) and low requirements to the printing surface. Therefore, it can be printed not only on a label but directly onto a packing carton.
Valid symbols: |
0123456789 |
Length: |
fixed, 14 characters |
Check digit: |
one, modulo-10 algorithm |
Each character is encoded using two broad and three narrow bars/spaces. The ITF-14 will always encode 14 digits.
The barcode contains the following elements:
1 digit - logic.
3 digits - Global Trade prefix.
6 digits - Producer code.
3 digits - Product code.
1 digit - Check digit.
An "ITF-14" barcode.
Note the 'human readable' digits at the foot which can be used by operators if the label becomes damaged or will not scan for some reason - "15400141288763" is the number encoded in the barcode.