# ISO 251:1987 — Withdrawn and superseded ISO standards

For ISO 251:1987, item title is Conveyor belts — Widths and lengths; status code is 9599; successor is ISO 251:2003; withdrawn / published date is 1987-07-16, recorded from its source on 2026-08-05.

- **Identifier:** ISO 251:1987 _(verified: appears in the quote below)_
- **Item title:** Conveyor belts — Widths and lengths _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 251:2003
- **Withdrawn / published date:** 1987-07-16 _(verified: appears in the quote below)_

## What the source says

> 4146,IS,,ISO 251:1987,Conveyor belts — Widths and lengths,Courroies transporteuses — Largeurs et longueurs,1987-07-16,2,['53.040.20'],ISO/TC 41/SC 3,9599,[4145],[27295],"['en','fr']",1,"<p>This second edition cancels and replaces the first edition (1976). Specifies the width of belts and corresponding tolerances, and also tolerances (the lengths of conveyor belts are not standardized). Tabulates the nominal widths from 300 mm up to and including 3200 mm.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).