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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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. The guard bars are the start, stop, and center characters in a UPC-A symbol.
Density 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.
You may find similar items within these categories by selecting from the choices below:. 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. The start and stop characters io identical to each other.
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. Automatic identification and data io techniques. The start characters for the two-digit and five-digit add-on symbols are made up of three modules as follows:. Search all products by.
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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.
However, as more and more products use UPC barcodes, number system digits other than zero are becoming more prevalent. The first digit of a UPC-A code is called the number system digit. Two-digit and five-digit add-on symbols supplemental barcodes are available for adding to the right of the UPC-A symbol.
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However, the use of the wider bars and spaces nullifies this space savings. Interleaved 2 of 5 codes pack data more densely than UPC-A does. 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. Although UPC barcodes come in a number of different message lengths, these lengths are not fully variable as they are with other barcode symbologies.
Barcode Guide All Files. This brings the effective length of a UPC-A barcode message up to eleven digits. UPC-A encodes 11 digits 154200 numeric message data together with a check digit, for a total of 12 digits.
Because many purchased goods are conveniently prelabeled with UPC barcodes, you will want a barcode reader that can read these symbologies. The character set and density of the add-on symbols are the same as those of UPC-A.
Please download Chrome iecc Firefox or view our browser tips. Automatische Identifikation und Datenerfassungsverfahren. Your basket is empty. Download a free day trial edition of BarTender barcode software now. 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. 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.
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.
The first generation of products that were labeled with UPC-A almost exclusively used a zero as the number system digit. 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.
To specify a UPC-A barcode that has a number system digit other than zero, you must specify 11 digits in the character string. They are made up of three modules as follows: Symbol Structure The symbol comprises lso following elements: Accept and continue Learn more about the cookies we use and how to change your settings. The bars for these characters are longer than the bars that encode data, and they are sometimes referred to as security bars.
The start characters for the two-digit and 1540 add-on symbols are made up of three modules as 1520 Learn more about the cookies we use and how to change your settings. They are made up of three modules as follows:. Most barcode symbologies print bars and spaces in only two widths, but with UPC, four different widths are used.
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. 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.
Like the check digit, it is often stripped off by the barcode reader and therefore does not enter your computer or cash register. A human readable interpretation is always included. Take the smart route to manage medical device compliance.