# ISO 157:1975 — Withdrawn and superseded ISO standards

For ISO 157:1975, item title is Hard coal — Determination of forms of sulphur; status code is 9599; successor is ISO 157:1996; withdrawn / published date is 1975-01-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 157:1975 _(verified: appears in the quote below)_
- **Item title:** Hard coal — Determination of forms of sulphur _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 157:1996
- **Withdrawn / published date:** 1975-01-01 _(verified: appears in the quote below)_

## What the source says

> 3987,IS,,ISO 157:1975,Hard coal — Determination of forms of sulphur,Houille — Détermination de la teneur en différentes formes de soufre,1975-01-01,1,['73.040'],ISO/TC 27/SC 5,9599,,[3988],"['en','fr']",10,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).