# ISO/R 1893:1970 — Withdrawn and superseded ISO standards

For ISO/R 1893:1970, item title is Refractory products — Determination of refractoriness under load (Differential — With rising temperature); status code is 9599; successor is ISO 1893:1989; withdrawn / published date is 1970-10-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO/R 1893:1970 _(verified: appears in the quote below)_
- **Item title:** Refractory products — Determination of refractoriness under load (Differential — With rising temperature) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1893:1989
- **Withdrawn / published date:** 1970-10-01 _(verified: appears in the quote below)_

## What the source says

> 6569,R,,ISO/R 1893:1970,Refractory products — Determination of refractoriness under load (Differential — With rising temperature),Produits réfractaires — Détermination de l'affaissement sous charge (Différentiel — Avec augmentation de la température),1970-10-01,1,['81.080'],ISO/TC 33,9599,,[6570],"['en','fr']",6,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).