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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Because many purchased goods are conveniently prelabeled with UPC barcodes, you will want a barcode reader that can read these symbologies.

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. Learn more about the cookies we use and how to change your settings. Automatische Identifikation und Datenerfassungsverfahren. The bars for these characters are longer than the bars that encode data, and they are sometimes referred to as security bars.

We use cookies to make our website easier to use and to better understand your needs. 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.

With four available printing widths for 154420 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 experience issues viewing this site in Internet Explorer 9, 10 or Click ios learn more. A human readable interpretation is always isk. To specify a UPC-A barcode that has a number system digit other than zero, you must specify 11 digits in the character string. Interleaved 2 of 5 codes pack data more densely than UPC-A does.

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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. The first digit of a UPC-A code is called the number system digit. The guard bars are the start, stop, and center characters in a UPC-A symbol. Your basket isoo empty. 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.

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Download a free day trial edition of BarTender barcode software 115420. UPC-A encodes 11 digits of numeric message data together with a check digit, for a total of 12 digits. Find Similar Items This product falls into the following categories.

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. They are made up of three modules as follows: These uso are usually produced photographically or with a laser printer.

Although UPC barcodes come in a number of different message lengths, these lengths are not fully variable as they are with other barcode symbologies. Take the smart route to manage medical device compliance. Like the check digit, it is often stripped off by the barcode reader and therefore does not enter your computer or cash register. Symbol Structure The symbol comprises the following elements: This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.

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BS ISO/IEC 15420:2009

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. Most kso symbologies print bars and spaces in only two widths, but with UPC, four different widths are used. The start characters for the two-digit and five-digit add-on symbols are made up of three modules sio follows: Two-digit and five-digit add-on symbols supplemental barcodes are available for adding to the right of the UPC-A symbol.

They are made up of three modules as follows:. However, as more and more products use UPC barcodes, number system digits other than zero are becoming more prevalent.

This brings the effective length of a UPC-A barcode message up to eleven digits. The character set and density of the add-on symbols are the same as those of UPC-A. 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. Please download Chrome or Firefox or view our browser tips.