# ISO 1893:1989 — Withdrawn and superseded ISO standards

For ISO 1893:1989, item title is Refractory products — Determination of refractoriness-under-load (differential - with rising temperature); status code is 9599; successor is ISO/DIS 1893 | ISO 1893:2005; withdrawn / published date is 1989-07-13, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1893:1989 _(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/DIS 1893 | ISO 1893:2005
- **Withdrawn / published date:** 1989-07-13 _(verified: appears in the quote below)_

## What the source says

> 6570,IS,,ISO 1893:1989,Refractory products — Determination of refractoriness-under-load (differential - with rising temperature),Produits réfractaires — Détermination de l'affaissement sous charge (différentiel - avec élévation de la température),1989-07-13,1,['81.080'],ISO/TC 33,9599,[6569],"[29488,38785]","['en','fr']",8,"<p>Specifies a method for determining the deformation of a refractory product subjected to a constant load under conditions of progressively rising temperature, or 'refractoriness under load' - differential method, with rising temperature. The test may be carried out up to maximum temperature of 1700 C.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).