# ISO 2271:1972 — Withdrawn and superseded ISO standards

For ISO 2271:1972, item title is Surface active agents — Detergents — Determination of anionic-active matter (Direct two-phase titration procedure); status code is 9599; successor is ISO 2271:1989; withdrawn / published date is 1972-09-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 2271:1972 _(verified: appears in the quote below)_
- **Item title:** Surface active agents — Detergents — Determination of anionic-active matter (Direct two-phase titration procedure) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 2271:1989
- **Withdrawn / published date:** 1972-09-01 _(verified: appears in the quote below)_

## What the source says

> 7093,IS,,ISO 2271:1972,Surface active agents — Detergents — Determination of anionic-active matter (Direct two-phase titration procedure),Agents de surface — Détergents — Détermination de la teneur en matière active anionique (Méthode par titrage direct dans deux phases),1972-09-01,1,['71.100.40'],ISO/TC 91,9599,,[7094],"['en','fr']",4,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).