ISO IEC 16388-2023 PDF

Full title and description

ISO/IEC 16388:2023 — Information technology — Automatic identification and data capture techniques — Code 39 bar code symbology specification. This International Standard defines the Code 39 bar‑code symbology, its symbol structure, character encodation, identification prefixes and normative requirements for implementation and interchange.

Abstract

This document specifies the requirements for the bar code symbology known as Code 39. It defines Code 39 symbology characteristics, data character encodation, element dimensions and tolerances, recommended decoding algorithms and application‑defined parameters, and the symbology identifier prefix strings used to identify Code 39 symbols.

General information

• Status: Published (International Standard).
• Publication date: May 2023 (published 11 May 2023).
• Publisher: ISO/IEC (ISO, prepared by ISO/IEC JTC 1/SC 31 — Automatic identification and data capture techniques).
• ICS / categories: 01.080.50; 35.040.50 (graphical symbols; automatic identification and data capture techniques).
• Edition / version: Edition 3 (2023).
• Number of pages: 17 (main publication).

Scope

The standard specifies the Code 39 symbology for automatic identification and data capture: symbol structure and layout, character set and encodation rules, dimensional requirements and tolerances, decoding considerations and recommended parameters that applications may define; it also specifies symbology identifier prefix strings for interoperable identification of Code 39 symbols. The scope is focused on the symbology specification itself rather than industry‑specific application rules.

Key topics and requirements

• Definition of the Code 39 character set and encodation (including full ASCII encodation mechanisms where applicable).
• Symbol structure: start/stop characters, inter‑character spacing and recommended quiet zones.
• Dimensional specifications and tolerance limits for element widths, ratios and overall symbol dimensions.
• Decoding guidance and recommended algorithmic parameters to ensure robust reading across implementations.
• Specification of symbology identifier prefix strings for use in data interchange and identification.
• Optional check character (modulo 43) and notes on application‑defined requirements (where applications may mandate additional checks or constraints).

Typical use and users

Manufacturers of barcode printers, scanners and imagers; software developers implementing barcode encoding/decoding libraries; systems integrators and solution providers in logistics, manufacturing, warehousing, retail and healthcare; standards and compliance teams that ensure labels and data carriers conform to international symbology specifications. Code 39 is commonly used for medium‑density alphanumeric labeling where full ASCII or simple alphanumeric identification is required.

Related standards

Other automatic identification standards and symbology specifications (examples include standards for Code 128, EAN/UPC, Data Matrix and other ISO/IEC automatic identification documents) and ISO/IEC JTC 1/SC 31 working documents. ISO/IEC 16388:2023 replaces the 2007 edition of the same standard.

Keywords

Code 39; barcode; symbology; automatic identification; data capture; encodation; symbol dimensions; tolerances; decoding algorithms; modulo 43; identifier prefix.

FAQ

Q: What is this standard?

A: ISO/IEC 16388:2023 is the International Standard that specifies the Code 39 bar‑code symbology used for automatic identification and data capture.

Q: What does it cover?

A: It covers the Code 39 character set and encodation, symbol structure (start/stop, inter‑character gap, quiet zone), dimensional requirements and tolerances, decoding guidance and symbology identifier prefixes; it does not prescribe industry‑specific application rules except where noted.

Q: Who typically uses it?

A: Barcode hardware vendors (printers/readers), software developers, systems integrators, label designers, and organizations that require a standard, interoperable alphanumeric barcode symbology for identification and tracking.

Q: Is it current or superseded?

A: Current — the 2023 edition (Edition 3) was published in May 2023 and supersedes the previous 2007 edition of ISO/IEC 16388.

Q: Is it part of a series?

A: It is part of the family of ISO/IEC standards produced by JTC 1/SC 31 on automatic identification and data capture techniques; related symbology standards and application documents exist within the same technical committee framework.

Q: What are the key keywords?

A: Code 39, barcode, symbology, automatic identification, encodation, modulo 43, tolerances, decoding algorithms.