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A GS1 check digit calculator and detailed documentation is online at GS1's website. [5] Another official calculator page shows that the mechanism for GTIN-13 is the same for Global Location Number /GLN.
The GS1 Identification Key is used to identify physical locations or legal entities. The key comprises a GS1 Company Prefix, Location Reference, and Check Digit. Location identified with GLN could be a physical location such as a warehouse or a legal entity such as a company or customer or a function that takes place within a legal entity.
In order to automate the reading process, the SSCC is often encoded in a barcode, generally GS1-128, and can also be encoded in an RFID tag. It is used in electronic commerce transactions. The SSCC comprises an extension digit, a GS1 company prefix, a serial reference, and a check digit. It is all numeric.
A GS1-128 barcode encoding GTIN, best before date and batch number. GS1-128 (formerly known as UCC/EAN-128) is a subset of Code 128 and is used extensively worldwide in shipping and packaging industries as a product identification code for the container and pallet levels in the supply chain.
6 digits in the right group (the last digit is the check digit): 155486. A digit is encoded in seven areas, by two black bars and two white spaces. Each black bar or white space can have a width between 1 and 4 areas. Parity for the digits from left and right group: OEOOEE EEEEEE (O = Odd parity, E = Even parity).
Each of these elements varies in length depending on the length of the allocated GS1 Company Prefix. Each different type of trade item is allocated a different number and, for ease of administration, it is recommended that companies do this sequentially (001, 002, 003, etc.). T14 is a check digit, which follows the standard modulo 10 ...
GS1 Poland Office: GTIN-8 allocations 9627–969: GS1 Global Office: GTIN-8 allocations 977: Serial publications 978–979 "Bookland" – 979-0 used for sheet music ("Musicland", ISMN-13, replaces deprecated ISMN M- numbers) 980: Refund receipts 981–983: GS1 coupon identification for common currency areas 990–999: GS1 coupon identification
GS1 is a not-for-profit, international organization developing and maintaining its own standards for barcodes and the corresponding issue company prefixes. The best known of these standards is the barcode, a symbol printed on products that can be scanned electronically. GS1 has 118 local member organizations and over 2 million user companies.