# ISO 1927:1975 — Withdrawn and superseded ISO standards

For ISO 1927:1975, item title is Refractory products — Classification of prepared unshaped refractory materials (dense and insulating); status code is 9599; successor is ISO 1927:1984; withdrawn / published date is 1975-12-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1927:1975 _(verified: appears in the quote below)_
- **Item title:** Refractory products — Classification of prepared unshaped refractory materials (dense and insulating) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1927:1984
- **Withdrawn / published date:** 1975-12-01 _(verified: appears in the quote below)_

## What the source says

> 6624,IS,,ISO 1927:1975,Refractory products — Classification of prepared unshaped refractory materials (dense and insulating),Matériaux réfractaires — Classification des matériaux réfractaires non façonnés préparés (denses et isolants),1975-12-01,1,['81.080'],ISO/TC 33,9599,,[6625],"['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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).