This standard establishes the selection principles for the location of commodity barcode symbols, and also provides guidelines for the placement of commodity barcode symbols. This standard is applicable to the design of the barcode symbol position of commodities.
GB/T 14257-2002 history
2009GB/T 14257-2009 Bar code for commodity.Bar code symbol placement guidelines
2002GB/T 14257-2002 The location of bar code symbol for commodity