# ISO 4335:1987/Amd 4:1991 — Withdrawn and superseded ISO standards

For ISO 4335:1987/Amd 4:1991, item title is Information processing systems — Data communication — High-level data link control elements of procedures — Amendment 4; status code is 9599; successor is ISO/IEC 4335:1991; withdrawn / published date is 1991-10-03, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4335:1987/Amd 4:1991 _(verified: appears in the quote below)_
- **Item title:** Information processing systems — Data communication — High-level data link control elements of procedures — Amendment 4 _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 4335:1991
- **Withdrawn / published date:** 1991-10-03 _(verified: appears in the quote below)_

## What the source says

> 10216,IS,Amd,ISO 4335:1987/Amd 4:1991,Information processing systems — Data communication — High-level data link control elements of procedures — Amendment 4,Systèmes de traitement de l'information — Communication de données — Eléments de procédures de commandes de liaison de données à haut niveau — Amendement 4,1991-10-03,3,['35.100.20'],ISO/IEC JTC 1/SC 6,9599,,[10211],['en'],3,

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).