Universal product barcodes generally consist of a prefix part, manufacturer code, product code and check code.
The prefix code in the product barcode is a code used to identify the country or region. The coding authority is in the International Article Numbering Association. For example, 00-09 represents the United States and Canada, 45 and 49 represent Japan, and 69 represents China. Mainland China, 471 represents Taiwan, China, and 489 represents Hong Kong SAR.
Empowerment of manufacturer codes In the article coding organizations of various countries or regions, China is assigned manufacturer codes by the National Article Coding Center.
Commodity code is a code used to identify commodities. The coding power is exercised by the product manufacturer itself, commodity barcode.
The product barcode finally uses a 1-digit check code to verify the correctness of the 1-12 digit codes from the left in the product barcode.
Extended information:
Commodity barcode refers to a symbol composed of a set of regularly arranged bars, spaces and corresponding characters, used to represent certain product information. The bars are dark and the spaces are light, used for scanning and reading with barcode reading equipment.
The corresponding characters consist of a set of Arabic numerals for people to read directly or input data into the computer through the keyboard. The information represented by this group of spaces and the corresponding characters is the same.
Bar code technology was born with the development and application of computers and information technology. It is a new technology that integrates coding, printing, identification, data collection and processing.
The use of barcode scanning is a major trend in market circulation in the future. In order to enable goods to circulate freely and widely around the world, enterprises must abide by the relevant regulations on product barcode management, whether designing and producing, applying for registration or using product barcodes.
Reference material: Baidu Encyclopedia-Barcode