ISO/IEC 18004:2024 PDF

Information technology — Automatic identification and data capture techniques — QR code bar code symbology specification

First page of standard ISO/IEC 18004:2024

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Title (English):

ISO/IEC 18004:2024

Information technology — Automatic identification and data capture techniques — QR code bar code symbology specification

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 111
Publication date:: August 15, 2024
Edition:: ISO/IEC IS 18004 edition 4 version 1
ICS:: 01.080.50

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Description (English):

This document specifies requirements for the symbology known as “QR code”. It specifies the QR code symbology characteristics, data character encoding methods, symbol formats, dimensional characteristics, error correction rules, reference decoding algorithm, production quality requirements and user-selectable application parameters.

Technical details

Technical committee: ISO/IEC JTC 1/SC 31 - Automatic identification and data capture techniques
SKU: ISO/IEC 18004:2024

Abstract

Overview

ISO/IEC 18004:2024 - "Information technology - Automatic identification and data capture techniques - QR code bar code symbology specification" - is the international standard that defines the QR code symbology. The document specifies the QR code’s characteristics, data character encoding methods, symbol formats, dimensional and production quality requirements, error correction rules, and a reference decoding algorithm. It is the authoritative specification for implementing, printing, decoding and validating QR codes for interoperable automatic identification and data capture.

Key topics and requirements

The 2024 edition of ISO/IEC 18004 covers technical and normative requirements, including:

Symbol description and structure: definitions of function patterns (finder, timing, alignment), encoding regions, quiet zone and symbol versions/sizes.
Data encoding modes: Numeric, Alphanumeric, Byte, Kanji, Extended Channel Interpretation (ECI) and Structured Append support.
Encode and decode procedures: stepwise encode overview (data analysis, encoding, error correction, mask selection, format/version information) and a reference decode algorithm for implementers.
Error correction: rules for generating and applying Reed–Solomon style error correction codewords and error correction capacity.
Data masking and evaluation: mask patterns and evaluation criteria to improve readability and reduce scanner errors.
Format and version information: placement and interpretation of metadata required for decoding.
Printing, marking and dimensional requirements: symbol dimensioning, human-readable interpretation guidance and marking guidelines.
Symbol quality and conformance: quality parameters (scan grade, fixed pattern damage, grid non-uniformity, print growth), process control measurements and conformity testing.
Autodiscrimination and transmitted data: requirements for symbol detection and the representation of transmitted payloads.

Applications

ISO/IEC 18004:2024 is essential wherever QR codes are used for automatic identification and data capture:

Abstract

Overview

Key topics and requirements

The 2024 edition of ISO/IEC 18004 covers technical and normative requirements, including:

Symbol description and structure: definitions of function patterns (finder, timing, alignment), encoding regions, quiet zone and symbol versions/sizes.
Data encoding modes: Numeric, Alphanumeric, Byte, Kanji, Extended Channel Interpretation (ECI) and Structured Append support.
Encode and decode procedures: stepwise encode overview (data analysis, encoding, error correction, mask selection, format/version information) and a reference decode algorithm for implementers.
Error correction: rules for generating and applying Reed–Solomon style error correction codewords and error correction capacity.
Data masking and evaluation: mask patterns and evaluation criteria to improve readability and reduce scanner errors.
Format and version information: placement and interpretation of metadata required for decoding.
Printing, marking and dimensional requirements: symbol dimensioning, human-readable interpretation guidance and marking guidelines.
Symbol quality and conformance: quality parameters (scan grade, fixed pattern damage, grid non-uniformity, print growth), process control measurements and conformity testing.
Autodiscrimination and transmitted data: requirements for symbol detection and the representation of transmitted payloads.

Applications

ISO/IEC 18004:2024 is essential wherever QR codes are used for automatic identification and data capture:

ISO/IEC 18004:2024 PDF

Technical details

Abstract

Overview

Key topics and requirements

Applications

Abstract

Overview

Key topics and requirements

Applications

Who uses this standard

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