# ISO 11433:1993 — Withdrawn and superseded ISO standards

For ISO 11433:1993, item title is Nickel alloys — Determination of titanium content — Diantipyrylmethane molecular absorption spectrometric method; status code is 9599; successor is ISO 11433:2020; withdrawn / published date is 1993-08-26, recorded from its source on 2026-08-05.

- **Identifier:** ISO 11433:1993 _(verified: appears in the quote below)_
- **Item title:** Nickel alloys — Determination of titanium content — Diantipyrylmethane molecular absorption spectrometric method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 11433:2020
- **Withdrawn / published date:** 1993-08-26 _(verified: appears in the quote below)_

## What the source says

> 19373,IS,,ISO 11433:1993,Nickel alloys — Determination of titanium content — Diantipyrylmethane molecular absorption spectrometric method,Alliages de nickel — Dosage du titane — Méthode par spectrométrie d'absorption moléculaire au diantipyrylméthane,1993-08-26,1,['77.120.40'],ISO/TC 155,9599,,[80285],"['en','fr']",4,"<p>The principle of the method specified is dissolving a test portion in hydrochloric and nitric acids, removing hydrochloric acid and nitric acid by evaporation to fumes in the presence of sulfuric acid, forming the titanium diantipyrylmethane complex, measuring the absorbance of the test solution at a wavelength of 390 nm. The method may be used to determine titanium contents

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).