# ISO 157:1996 — Withdrawn and superseded ISO standards

For ISO 157:1996, item title is Coal — Determination of forms of sulfur; status code is 9599; successor is ISO 157:2025; withdrawn / published date is 1996-05-23, recorded from its source on 2026-08-05.

- **Identifier:** ISO 157:1996 _(verified: appears in the quote below)_
- **Item title:** Coal — Determination of forms of sulfur _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 157:2025
- **Withdrawn / published date:** 1996-05-23 _(verified: appears in the quote below)_

## What the source says

> 3988,IS,,ISO 157:1996,Coal — Determination of forms of sulfur,Charbon — Détermination de la teneur en différentes formes de soufre,1996-05-23,2,['73.040'],ISO/TC 27/SC 5,9599,[3987],[86979],"['en','fr']",15,"<p>Specifies methods of determining the sulfate and pyrite sulfur contents of coals, including brown coals and methods of calculating the amount of organic sulfur present. Replaces the first edition.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).