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 enables each numeric character to be represented by using just two bars and ieec spaces, which is the fewest number of modules required per character of any symbology. This brings the effective length of a UPC-A barcode message up to eleven digits. The start characters for the two-digit and five-digit add-on symbols are made up of three modules as follows: Character Set This symbology supports all numeric digits Most barcode symbologies print bars and spaces in only two widths, but with UPC, four different widths are 1520.
AENOR ISO /IEC
is 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.
The guard bars are the start, stop, and center characters in a UPC-A symbol. The first digit of a UPC-A code is called the number system digit.
Find Similar Items This product falls into the following categories. Search all products by. Two-digit and five-digit add-on symbols supplemental barcodes are available for adding to the right of the UPC-A symbol. Barcode Guide All Files.
You may find similar items within these categories by selecting from the choices below:. The first generation of products that were labeled with UPC-A almost exclusively used a zero as the number system digit. Symbol Structure The symbol comprises the following elements: 51420 you want this first digit transmitted to your cash register or database software, your barcode reader must be configured to transmit it. They are made up of three modules as follows:.
Universal Product Code UPC was initially developed in the s for 1540 by 15402 US grocery industry, and its use has spread into other retail marketplaces in the US and internationally. The start characters for the two-digit and five-digit add-on symbols are made up of three modules as follows:. The character set and density of the add-on symbols are the same as those of UPC-A.
Your basket is empty. 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.
To specify a UPC-A barcode that has a number system digit other than zero, you must specify 11 digits in the character string. Accept and continue Learn more about the cookies we use and how to change your settings. 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.
A human readable interpretation is always included. The start and stop characters are identical to each other. 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. They are made up of three modules as follows: 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 ieo uses.
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.
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.
Click to learn more. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Because many purchased goods are conveniently prelabeled with UPC barcodes, you will want a barcode reader that can read these symbologies.