# ISO 502:1982 — Withdrawn and superseded ISO standards

For ISO 502:1982, item title is Coal — Determination of caking power — Gray-King coke test; status code is 9599; successor is ISO 502:2015; withdrawn / published date is 1982-02-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 502:1982 _(verified: appears in the quote below)_
- **Item title:** Coal — Determination of caking power — Gray-King coke test _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 502:2015
- **Withdrawn / published date:** 1982-02-01 _(verified: appears in the quote below)_

## What the source says

> 4557,IS,,ISO 502:1982,Coal — Determination of caking power — Gray-King coke test,Charbon — Détermination du pouvoir agglutinant — Essai Gray-King,1982-02-01,2,['73.040'],ISO/TC 27/SC 5,9599,,[64983],"['en','fr']",9,"<p>The sample is heated under standard conditions to a final temperature of 600 C. The coke residue obtained is classified by reference to a series of standard residues. If the coke residue produced is so swollen that it fills the crosssection of the retort tube, the determination is repeated with the coal admixed with a suitable quantity of electrode carbon or equivalent material.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).