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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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. However, as more and more ios use UPC barcodes, number system digits other than zero are becoming more prevalent. Most barcode symbologies print bars and spaces in only two widths, but with UPC, four different widths are used.
Add-on Symbols Two-digit and five-digit add-on symbols supplemental barcodes are available for adding to the right of the UPC-A symbol. You may find similar items within these iex by selecting from the choices below:.
They are made up of three modules as follows: Your basket is empty. Search all products by. 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.
Two-digit and five-digit add-on symbols supplemental barcodes are available for adding to the right of the UPC-A symbol. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.
They are made up of three modules as follows:. The bars for these characters are longer than the bars that encode data, and they are sometimes referred to as security bars.
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The character set and density of the add-on symbols are the same as those of UPC-A. Because many purchased goods are conveniently prelabeled with UPC barcodes, you will want a barcode reader that can read these symbologies.
You may experience issues viewing this site in Internet Explorer 9, 10 or These barcodes are usually produced photographically or with a laser printer.
UPC-A encodes 11 digits of numeric message data together with a check digit, for a total of 12 digits. Accept and continue Learn more about the cookies we use and how to change your settings. A human readable interpretation is always included. The start characters for the two-digit and five-digit add-on symbols are made up of three modules as follows: This brings the effective length of a UPC-A barcode message up to eleven digits.
Download a free day trial edition of BarTender barcode software now. Leading quiet zone Guard pattern start character Six symbol characters Center guard pattern center character Six symbol characters, including check digit Guard pattern stop character Trailing quiet zone UPC-A encodes 11 digits of numeric message data together with a check digit, for a total of 12 digits. Click to learn more.
BarTender is label design softwarelabel printing softwarebarcode softwareRFID softwarean alternative to embedded printer codeand much more. If you have a barcode reader that has automatic discrimination, we recommend using either Interleaved 2 of 5 or Code 39 for your in-house printed barcodes. Automatische Identifikation und Datenerfassungsverfahren. Character sets, Data representation, Automatic, Symbols, Optical character recognition, Algorithms, Coded representation, Character strings, Coded character sets, Bar codes, Data processing, Graphic symbols, Coding data conversionDimensions, Information exchange.
Learn more about the cookies we use and how to change your settings. However, the use of the wider bars and spaces nullifies this space savings. Please download Chrome or Firefox or view our browser tips.
This enables each numeric character to be represented by using just two bars and two spaces, which is the fewest number of modules 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. Although UPC barcodes come in a number of different message lengths, these lengths are not fully variable as they are with other barcode symbologies.
Symbol Structure The symbol comprises the following elements: 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. The guard bars are the start, stop, and center characters in a UPC-A symbol.