# ISO 7781:1996 — Withdrawn and superseded ISO standards

For ISO 7781:1996, item title is Rubber, raw styrene-butadiene — Determination of soap and organic-acid content; status code is 9599; successor is ISO 7781:2001; withdrawn / published date is 1996-10-31, recorded from its source on 2026-08-05.

- **Identifier:** ISO 7781:1996 _(verified: appears in the quote below)_
- **Item title:** Rubber, raw styrene-butadiene — Determination of soap and organic-acid content _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 7781:2001
- **Withdrawn / published date:** 1996-10-31 _(verified: appears in the quote below)_

## What the source says

> 20153,IS,,ISO 7781:1996,"Rubber, raw styrene-butadiene — Determination of soap and organic-acid content",Caoutchouc butadiène-styrène brut — Détermination de la teneur en savons et acides organiques,1996-10-31,2,['83.040.10'],ISO/TC 45/SC 2,9599,[14662],[33841],"['en','fr']",4,<p>Describes a method for the determination of the soap and organic-acid content of raw styrene-butadiene rubber (SBR). The method depends on the extraction of the organic acids and soaps from the rubber by means of a solvent. Recommends to determine both contents on separate portions of the same solvent extract; gives only an approximative value. Replaces the first edition.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).