# ISO 5142:1977 — Withdrawn and superseded ISO standards

For ISO 5142:1977, item title is Sodium sulphate for industrial use — Determination of sodium sulphate content — Gravimetric method; status code is 9599; successor is ISO/CD 5142; withdrawn / published date is 1977-12-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 5142:1977 _(verified: appears in the quote below)_
- **Item title:** Sodium sulphate for industrial use — Determination of sodium sulphate content — Gravimetric method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/CD 5142
- **Withdrawn / published date:** 1977-12-01 _(verified: appears in the quote below)_

## What the source says

> 11149,IS,,ISO 5142:1977,Sodium sulphate for industrial use — Determination of sodium sulphate content — Gravimetric method,Sulfate de sodium à usage industriel — Détermination de la teneur en sulfate de sodium — Méthode gravimétrique,1977-12-01,1,['71.060.50'],ISO/TC 47,9599,,[11150],"['en','fr']",3,"<p>Applicable to products in which not all impurities are known or determined. The methods specified in ISO 3237 cannot be applied. The principle consists in dissolution of a test portion, removal of insoluble matter, iron, aluminium and calcium from the solution and evaporation to dryness in the presence of sulphuric acid. Heating and weighing of the total amount. Calculation of the sodium sulp

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).