# ISO 3858-2:1990 — Withdrawn and superseded ISO standards

For ISO 3858-2:1990, item title is Carbon black for use in the rubber industry — Determination of light transmittance of toluene extract — Part 2: Method for product evaluation; status code is 9599; successor is ISO 3858:2004; withdrawn / published date is 1990-08-23, recorded from its source on 2026-08-05.

- **Identifier:** ISO 3858-2:1990 _(verified: appears in the quote below)_
- **Item title:** Carbon black for use in the rubber industry — Determination of light transmittance of toluene extract — Part 2: Method for product evaluation _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 3858:2004
- **Withdrawn / published date:** 1990-08-23 _(verified: appears in the quote below)_

## What the source says

> 9444,IS,,ISO 3858-2:1990,Carbon black for use in the rubber industry — Determination of light transmittance of toluene extract — Part 2: Method for product evaluation,Noir de carbone pour l'industrie du caoutchouc — Détermination de la transmittance spectrale de l'extrait toluénique — Partie 2: Méthode d'évaluation du produit,1990-08-23,2,['83.040.20'],ISO/TC 45/SC 3,9599,[9443],[36691],"['en','fr']",3,"<p>Measures the discoloration caused by the extracted matter, as required in product evaluation. The degree of discoloration is quantitatively measured by means of a spectrometer. The method is applicable to high-extract thermal-type blacks. Part 1 refers to a rapid method. - Replaces the fir

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).