What do the first three digits of the mask barcode represent?

2022/10/15

The first three digits of the mask barcode represent the country code of the company, for example, 690-695 represents mainland China.

The barcode on the mask is a number of black bars and blanks with different widths, which are arranged according to certain coding rules and used to express a set of information. The barcode can indicate the country of manufacture, manufacturer, commodity name, date of manufacture, category, etc. of the item.

What is the composition of the mask barcode?

The commodity barcode is generally divided into 4 parts, which are divided into 3-5-4-1 points. The first part represents the country, the second part represents the manufacturer, the third part represents the product code in the factory, and the fourth part is the verification code. Take the barcode 6976983800013 as an example, this barcode is divided into 4 parts, from left to right: 1-3 digits: a total of 3 digits, corresponding to 697 of the barcode, which is one of the country codes of China. (690--699 are all Chinese codes, distributed internationally) 4-8 digits: a total of 5 digits, corresponding to 69838 of the barcode, representing the manufacturer code, applied by the manufacturer, and assigned by the country; 9-12 digits: a total of 4 digits, corresponding to the 0001 of the barcode, representing the product code in the factory, which is determined by the manufacturer; the 13th digit: a total of 1 digit, corresponding to the 3 of the barcode, is the check code, according to a certain algorithm (usually using barcode software, The last digit check code is automatically popped up by the software system), which is calculated from the first 12 digits.

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