Worth Data P11/12 User Manual
Page 50
H-1
Appendix H
UPC Specifications
UPC symbols are found on almost all grocery products
and many other retail items. The UPC code most people
are familiar with (UPC-A) is a fixed-length (12 digits)
numeric only code, with the first digit controlled by UPC
coding assignments and the last digit a checksum. UPC-
E and UPC-E1 are variations of the standard UPC-A
code. Each digit is constructed of two bars and two spaces. UPC has very precise
standards of code size, structure, and numbers to be used.
EAN is an international superset of UPC. EAN-13
has 13 digits, with the first two digits representing a
country code. The final digit is, as with UPC, a check
digit. EAN-8 is a shorter version on the EAN-13 code
containing seven data digits and ending again with a
checksum.
The exact UPC/EAN symbol specifications are
available from:
Uniform Product Code Council, Inc.
8163 Old Yankee Road, Suite J
Dayton, Ohio 45458
(513) 435-3870
Specifications are also available via the internet at:
http://www.uc-council.org
Keep the following guidelines in mind when printing UPC bar codes:
If you plan to use a "supermarket-type" in-counter scanner to read the codes,
specify a bar code height of at least .9" for an optimal first read rate.
Make it an early practice to observe the numbering conventions of the UPC
Council. Do not label unmarked merchandise with a bar code whose numbers
may conflict with those already assigned. If products with these numbers are
not in your store now, they are likely to be in the future, causing conflicts in
your inventory system.
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