# ISO 975:1975 — Withdrawn and superseded ISO standards

For ISO 975:1975, item title is Brown coals and lignites — Determination of yield of benzene-soluble extract; status code is 9599; successor is ISO 975:2000 | ISO 975:1985; withdrawn / published date is 1975-11-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 975:1975 _(verified: appears in the quote below)_
- **Item title:** Brown coals and lignites — Determination of yield of benzene-soluble extract _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 975:2000 | ISO 975:1985
- **Withdrawn / published date:** 1975-11-01 _(verified: appears in the quote below)_

## What the source says

> 5411,IS,,ISO 975:1975,Brown coals and lignites — Determination of yield of benzene-soluble extract,Charbons bruns et lignites — Détermination du rendement en extrait de benzène soluble,1975-11-01,1,['73.040'],ISO/TC 27,9599,,"[20409,5412]","['en','fr']",3,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).