Barcodes are generally divided into four parts, with a score of 3-5-4- 1. The first part represents the country, the second part represents the manufacturer, the third part represents the commodity code in the factory, and the fourth part is the efficacy code:
Take the barcode 69369838000 13 as an example.
The bar code is divided into four parts from left to right:
1-3 digits: * * 3 digits, corresponding to bar code 693, which is one of the national codes of China. (690-699 are all codes of China, which are allocated internationally);
4-8 digits: * * * 5 digits, corresponding to barcode 69838, representing the manufacturer's code, which is applied by the manufacturer and allocated by the state;
9- 12 digits: * * 4 digits, corresponding to barcode 000 1, representing the commodity code in the factory, which is determined by the manufacturer;
Bit 13: * * *1,corresponding to bar code, is a check code, which is calculated by the previous bit 12 according to a certain algorithm (bar code software is generally used, and the last check code is automatically popped up by the software system).
Extended data:
300 ~ 379 France;
380 Bulgaria;
Slovenia;
Bosnia and Herzegovina;
400 ~ 440 Germany;
490 ~ 499 Japan;
460 ~ 469 Russia.
Coding requirements: a commodity item, a manufacturer or a country (region) has only one coding. Once the commodity item, manufacturer and country (region) are determined, they will never be changed.
Moreover, a set of numbers in the barcode must be combined with the country (region), manufacturer and commodity. This commodity item code can ensure that the code identification of the commodity is specific and unique in a country (region) and even in the world. Although commodity bar code is widely used in modern commodity sales automation management, it is often reflected in commodity packaging or accessories at the same time with trademarks, which is closely related to trademarks. However, due to their different functions, their differences are also obvious.
Baidu Encyclopedia-Commodity Barcode