ISO IEC 15420 PDF
ISO/IEC. Second edition. Information technology — Automatic identification and data capture techniques — EAN/UPC bar code symbology. ISO/IEC Standard | Information technology — Automatic identification and data capture techniques — Bar code symbology. Description. This International Standard specifies the requirements for the EAN/ UPC symbology including data character encodation, symbol formats.
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This brings ieo effective length of a UPC-A barcode message up to eleven digits. You may experience issues viewing this site in Internet Explorer 9, 10 or However, the use of the wider bars and spaces nullifies this space savings. With four available printing widths for the bars and spaces instead of just two, UPC-A takes about half the number of bars and spaces relative to Interleaved 2 of 5 to represent each character.
This enables each numeric character to be represented by using just two bars and two spaces, which is the fewest number of iiso required per character of any symbology.
To specify a UPC-A barcode that has a number system digit other than zero, you must specify 11 digits in the character string. The first digit of a UPC-A code is called the number system digit.
Combining UPC with Other Symbologies Because many purchased goods are conveniently prelabeled with UPC barcodes, you will want a barcode reader that can read these symbologies. These add-on symbols are usually used to add a date or a manufacturer’s suggested retail price MSRP to periodicals, books, and weighed products, such as food. Worldwide Standards We can source any standard from anywhere in the world. Please download Chrome or Firefox or view our browser tips.
Two-digit and five-digit add-on symbols supplemental barcodes are available for adding to the right of the UPC-A symbol. Because many purchased goods are conveniently prelabeled with UPC barcodes, you will want a barcode reader that can read these symbologies.
The first generation of products that were labeled with UPC-A almost exclusively used a zero as the number system digit. UPC-A encodes 11 digits of numeric message data together with a check digit, for a total of 12 digits.
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Automatische Identifikation und Datenerfassungsverfahren. Interleaved 2 of 5 codes pack data more densely than UPC-A does. A human readable 1540 is always included.
The character set and density of the add-on symbols are the same as those of UPC-A.
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Most barcode symbologies print bars and spaces in only two widths, but with UPC, four different widths are used. Automatic identification and data capture ief. However, since most barcode readers can automatically discriminate between the various barcode symbologies, it is very easy to combine different barcode symbologies in a given application environment. Because UPC is a numeric-only code, Interleaved 2 of 5 would be the preferred substitute, because it uses about half the space that Code 39 uses.
Although UPC barcodes come in a number of different message lengths, these lengths are not fully variable as they are with other barcode symbologies. Download a free day trial edition of BarTender barcode software now. Symbol Structure The symbol comprises the following elements: The start and stop characters are identical to each other.
Universal Product Code UPC was initially developed in the s for use by the US grocery industry, and its use has spread into other retail marketplaces in the US and internationally.
BS ISO/IEC 15420:2009
Your basket is empty. Like the check digit, it is often stripped off by the barcode reader and therefore does not enter your computer or cash register.
This website is best viewed with browser version of up to Microsoft 1520 Explorer 8 or Firefox 3. The guard bars are the start, stop, and center characters in a UPC-A symbol.
You may find similar items within these categories by selecting from the choices below:. The start characters for the two-digit and five-digit add-on symbols are made up of three modules as follows:.
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