# ISO 7059:1982 — Withdrawn and superseded ISO standards

For ISO 7059:1982, item title is Caprolactam for industrial use — Determination of absorbance at a wavelength of 290 nm; status code is 9599; successor is ISO 7059:2023; withdrawn / published date is 1982-12-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 7059:1982 _(verified: appears in the quote below)_
- **Item title:** Caprolactam for industrial use — Determination of absorbance at a wavelength of 290 nm _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 7059:2023
- **Withdrawn / published date:** 1982-12-01 _(verified: appears in the quote below)_

## What the source says

> 13625,IS,,ISO 7059:1982,Caprolactam for industrial use — Determination of absorbance at a wavelength of 290 nm,Caprolactame à usage industriel — Détermination de l'absorbance à la longueur d'onde de 290 nm,1982-12-01,1,['71.080.30'],ISO/TC 61/SC 5,9599,,[83910],"['en','fr']",1,"<p>The spectrometric measurement of the absorbance of a 50 % caprolactam water solution is carried out at a wavelength of 290 nm. The absorbance, expressed in relation to an optical path length of 1 m, is given by a specified formula in which A<sub>O</sub> is the correction for the difference in absorbances of the cells; A<sub>1</sub> is the absorbance of the test solution, and 1 is the optical path length, in centime

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).