# ISO/IEC 18181-2:2021 — Withdrawn and superseded ISO standards

For ISO/IEC 18181-2:2021, item title is Information technology — JPEG XL image coding system — Part 2: File format; status code is 9599; successor is ISO/IEC 18181-2:2024; withdrawn / published date is 2021-10-13, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 18181-2:2021 _(verified: appears in the quote below)_
- **Item title:** Information technology — JPEG XL image coding system — Part 2: File format _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 18181-2:2024
- **Withdrawn / published date:** 2021-10-13 _(verified: appears in the quote below)_

## What the source says

> 80617,IS,,ISO/IEC 18181-2:2021,Information technology — JPEG XL image coding system — Part 2: File format,Technologies de l'information - Systѐme de codage d'images JPEG XL — Partie 2: Format de fichiers,2021-10-13,1,['35.040.30'],ISO/IEC JTC 1/SC 29,9599,,[85253],['en'],16,<p>This document specifies the transport and container formats for JPEG XL codestreams as specified in ISO/IEC 18181-1. This document specifies how to add metadata and extensions to JPEG XL codestreams. A file as described by this document is called a JPEG XL file.</p>

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).