>>25163
The first digit indicates the number system to be used for the subsequent digits. The following number system digits and their numbering schemes are:
0, 1, 6, 7, 8: For most products. The LLLLL digits are the manufacturer code, and the RRRRR digits are the product code.
2: Reserved for local use (store/warehouse), for items sold by variable weight. Variable-weight items, such as meats and fresh fruits and vegetables, are assigned a UPC by the store, if they are packaged there. In this case, the LLLLL is the item number, and the RRRRR is either the weight or the price, with the first R determining which.
3: Drugs by National Drug Code number. Pharmaceuticals in the U.S. have the remainder of the UPC as their National Drug Code (NDC) number; though usually only over-the-counter drugs are scanned at point-of-sale, NDC-based UPCs are used on prescription drug packages and surgical products and, in this case, are commonly called UPN Codes.[4] )
**4: Reserved for local use (store/warehouse), often for loyalty cards or store coupons.**
5, 9: Coupons: The Manufacturer code is the LLLLL, the first 3 RRR are a family code (set by manufacturer), and the next 2 RR are a coupon code. This 2-digit code determines the amount of the discount, according to a table set by the GS1 US, with the final R being the check digit. These coupons can be doubled or tripled.
Так что это не совсем тот штрих-код.
