ISO/IEC 18004:2000 pdf download-Information technology — Automatic identification and data capture techniques — Bar code symbology — QR Code.
3 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO/IEC 1 5424, Information technology — Automatic identification and data capture techniques — Data carrier/symbologyidentifiers. ISO/IEC 1 541 6, Information technology — Automatic identification and data capture techniques — Bar code print qualitytestspecifications — Linearsymbols. EN 1 556, BarCoding — Terminology. JIS X 0201 , JIS 8-bit CharacterSetforInformation Interchange. JIS X 0208-1 997, Japanese Graphic CharacterSetforInformation Interchange. ANSI X3.4, Coded Character Sets — 7-bit American National Standard Code for Information Interchange (7-bit ASCII). AIM International Technical Specification, Extended Channel Interpretations: Part1: Identification scheme and protocol(referred to as “AIM ECI specification”).
6 Conventions 6.1 Module positions For ease of reference, module positions are defined by their row and column coordinates in the symbol, in the form (i, j) where i designates the row (counting from the top downwards) and j the column (counting from left to right) in which the module is located, with counting commencing at 0. Module (0, 0) is therefore located at the upper left corner of the symbol. 6.2 Byte notation Byte contents are shown as hexadecimal values. 6.3 Version references Symbol versions are referred to in the form Version V-E where V identifies the version number (1 – 40) and E indicates the error correction level (L, M, Q, H). 7 Symbol description The clauses and subclauses of this International Standard define the specifications applicable to Model 2 QR Code symbols. Unless indicated otherwise in Annex M they also apply to Model 1 symbols. 7.1 Basic characteristics QR Code is a matrix symbology with the following characteristics: a) Encodable character set: 1 ) numeric data (digits 0 – 9); 2) alphanumeric data (digits 0 – 9; upper case letters A -Z; nine other characters: space, $ % * + – . / : ); 3) 8-bit byte data (JIS 8-bit character set (Latin and Kana) in accordance with JIS X 0201 ); 4) Kanji characters (Shift JIS character set in accordance with JIS X 0208 Annex 1 Shift Coded Representation. Note that Kanji characters in QR Code can have values 81 40 HEX -9FFC HEX and E040 HEX – EBBF HEX , which can be compacted into 1 3 bits.)