# ISO 556:1980 — Withdrawn and superseded ISO standards

For ISO 556:1980, item title is Coke (greater than 20 mm in size) — Determination of mechanical strength; status code is 9599; successor is ISO 556:2020; withdrawn / published date is 1980-11-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 556:1980 _(verified: appears in the quote below)_
- **Item title:** Coke (greater than 20 mm in size) — Determination of mechanical strength _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 556:2020
- **Withdrawn / published date:** 1980-11-01 _(verified: appears in the quote below)_

## What the source says

> 4644,IS,,ISO 556:1980,Coke (greater than 20 mm in size) — Determination of mechanical strength,Coke (dimension supérieure à 20 mm) — Détermination de la cohésion,1980-11-01,1,['75.160.10'],ISO/TC 27/SC 3,9599,[6557],[67874],"['en','fr']",5,"<p>A sample of coke greater than 20 mm in size and of known size distribution is subjected to mechanical stresses ina rotating drum. The degree of breakdown of the coke is evaluated by a process of sieving and size analysis after 100 drum revolutions (Micum test) and, if desired, after 500 drum revolutions (Irsid test).</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).