# ISO 1577:1980 — Withdrawn and superseded ISO standards

For ISO 1577:1980, item title is Tea — Determination of acid-insoluble ash; status code is 9599; successor is ISO 1577:1987; withdrawn / published date is 1980-08-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1577:1980 _(verified: appears in the quote below)_
- **Item title:** Tea — Determination of acid-insoluble ash _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1577:1987
- **Withdrawn / published date:** 1980-08-01 _(verified: appears in the quote below)_

## What the source says

> 6173,IS,,ISO 1577:1980,Tea — Determination of acid-insoluble ash,Thé — Détermination des cendres insolubles dans l'acide,1980-08-01,1,['67.140.10'],ISO/TC 34/SC 8,9599,,[6174],['en'],2,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).