This International Standard specifies the requirements for the symbology known as QR Code. It specifies the QR Code Model 2 symbology characteristics, data character encodation, symbol formats, dimensional characteristics, error correction rules, reference decoding algorithm, production quality requirements, and user-selectable application parameters, and defines in an annex the features of Model 1 symbols which differ from Model 2.
ISO/IEC 18004:2000 history
2015ISO/IEC 18004:2015 Information technology - Automatic identification and data capture techniques - QR Code bar code symbology specification
2009ISO/IEC 18004:2006/Cor 1:2009 Information technology - Automatic identification and data capture techniques - QR Code 2005 bar code symbology specification; Technical Corrigendum 1
2006ISO/IEC 18004:2006 Information technology - Automatic identification and data capture techniques - QR Code 2005 bar code symbology specification
2000ISO/IEC 18004:2000 Information technology; Automatic identification and data capture techniques - Bar code symbology - QR Code