# ISO 540:1981 — Withdrawn and superseded ISO standards

For ISO 540:1981, item title is Solid mineral fuels — Determination of fusibility of ash — High-temperature tube method; status code is 9599; successor is ISO 540:1995; withdrawn / published date is 1981-11-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 540:1981 _(verified: appears in the quote below)_
- **Item title:** Solid mineral fuels — Determination of fusibility of ash — High-temperature tube method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 540:1995
- **Withdrawn / published date:** 1981-11-01 _(verified: appears in the quote below)_

## What the source says

> 4616,IS,,ISO 540:1981,Solid mineral fuels — Determination of fusibility of ash — High-temperature tube method,Combustibles minéraux solides — Détermination de la fusibilité des cendres — Méthode du tube à haute température,1981-11-01,2,['75.160.10'],ISO/TC 27,9599,,[20315],"['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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).