# IWA 33-1:2019 — Withdrawn and superseded ISO standards

For IWA 33-1:2019, item title is Technical guidelines for the development of small hydropower plants — Part 1: Vocabulary; status code is 9599; successor is ISO/DIS 25259; withdrawn / published date is 2019-12-10, recorded from its source on 2026-08-05.

- **Identifier:** IWA 33-1:2019 _(verified: appears in the quote below)_
- **Item title:** Technical guidelines for the development of small hydropower plants — Part 1: Vocabulary _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/DIS 25259
- **Withdrawn / published date:** 2019-12-10 _(verified: appears in the quote below)_

## What the source says

> 77455,IWA,,IWA 33-1:2019,Technical guidelines for the development of small hydropower plants — Part 1: Vocabulary,Lignes directrices techniques pour le développement de la petite hydraulique — Partie 1: Titre manque,2019-12-10,1,['27.140'],ISO/TC 339,9599,,[89622],['en'],60,<p>This document defines the professional technical terms and definitions commonly used for small hydropower (SHP) plants.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).