# ISO 4282:1977 — Withdrawn and superseded ISO standards

For ISO 4282:1977, item title is Acid-grade fluorspar — Determination of loss in mass at 105 degrees C; status code is 9599; successor is ISO 4282:1992; withdrawn / published date is 1977-02-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4282:1977 _(verified: appears in the quote below)_
- **Item title:** Acid-grade fluorspar — Determination of loss in mass at 105 degrees C _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4282:1992
- **Withdrawn / published date:** 1977-02-01 _(verified: appears in the quote below)_

## What the source says

> 10122,IS,,ISO 4282:1977,Acid-grade fluorspar — Determination of loss in mass at 105 degrees C,Spaths fluor pour la fabrication de l'acide fluorhydrique — Détermination de la perte de masse à 105 degrés C,1977-02-01,1,['73.080'],ISO/TC 175,9599,,[10123],['en'],2,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).