# ISO 83:1976 — Withdrawn and superseded ISO standards

For ISO 83:1976, item title is Steel — Charpy impact test (U-notch); status code is 9599; successor is ISO 148-1:2006; withdrawn / published date is 1976-11-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 83:1976 _(verified: appears in the quote below)_
- **Item title:** Steel — Charpy impact test (U-notch) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 148-1:2006
- **Withdrawn / published date:** 1976-11-01 _(verified: appears in the quote below)_

## What the source says

> 3733,IS,,ISO 83:1976,Steel — Charpy impact test (U-notch),Acier — Essai de résilience Charpy (entaille en U),1976-11-01,1,['77.040.10'],ISO/TC 164/SC 4,9599,,[35183],"['en','fr']",3,"<p>Specifies the charpy impact method using U-notch test pieces. Determines the impact strength of steel by breaking by one blow from a swinging pendulum, under conditions defined hereafter, a test piece resting on two supports and determining the energy absorbed.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).