# ISO 334:1992 — Withdrawn and superseded ISO standards

For ISO 334:1992, item title is Solid mineral fuels — Determination of total sulfur — Eschka method; status code is 9599; successor is ISO 334:2013; withdrawn / published date is 1992-12-10, recorded from its source on 2026-08-05.

- **Identifier:** ISO 334:1992 _(verified: appears in the quote below)_
- **Item title:** Solid mineral fuels — Determination of total sulfur — Eschka method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 334:2013
- **Withdrawn / published date:** 1992-12-10 _(verified: appears in the quote below)_

## What the source says

> 4280,IS,,ISO 334:1992,Solid mineral fuels — Determination of total sulfur — Eschka method,Combustibles minéraux solides — Dosage du soufre total — Méthode Eschka,1992-12-10,2,"['73.040','75.160.10']",ISO/TC 27/SC 5,9599,[4279],[63441],['en'],5,"<p>The reference method specified is based on igniting a test portion (of hard coal, brown coal, lignite, or coke) in intimate contact with Eschka mixture in an oxidizing atmosphere, removal of combustible matter and conversion of the sulfur to sulfate, extraction of sulfate with hydrochloric acid solution and gravimetric determination by precipitation with barium chloride.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).