# ISO 501:2012 — Withdrawn and superseded ISO standards

For ISO 501:2012, item title is Hard coal — Determination of the crucible swelling number; status code is 9599; successor is ISO 501:2025; withdrawn / published date is 2012-08-16, recorded from its source on 2026-08-05.

- **Identifier:** ISO 501:2012 _(verified: appears in the quote below)_
- **Item title:** Hard coal — Determination of the crucible swelling number _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 501:2025
- **Withdrawn / published date:** 2012-08-16 _(verified: appears in the quote below)_

## What the source says

> 55498,IS,,ISO 501:2012,Hard coal — Determination of the crucible swelling number,Houille — Détermination de l'indice de gonflement au creuset,2012-08-16,4,['73.040'],ISO/TC 27/SC 5,9599,[33607],[86994],['en'],7,<p>ISO 501:2012 specifies a method for determining the swelling properties of hard coal when heated in a covered crucible. </p><p>The 'crucible swelling number' (CSN) is also known as the 'free swelling index' (FSI).</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).