# ISO/TR 9901:1990 — Withdrawn and superseded ISO standards

For ISO/TR 9901:1990, item title is Solar energy — Field pyranometers — Recommended practice for use; status code is 9599; successor is ISO/TR 9901:2021 | ISO/NP TR 9901; withdrawn / published date is 1990-08-23, recorded from its source on 2026-08-05.

- **Identifier:** ISO/TR 9901:1990 _(verified: appears in the quote below)_
- **Item title:** Solar energy — Field pyranometers — Recommended practice for use _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/TR 9901:2021 | ISO/NP TR 9901
- **Withdrawn / published date:** 1990-08-23 _(verified: appears in the quote below)_

## What the source says

> 17784,TR,,ISO/TR 9901:1990,Solar energy — Field pyranometers — Recommended practice for use,Énergie solaire — Pyranomètres de champ — Pratique recommandée pour l'emploi,1990-08-23,1,['27.160'],ISO/TC 180/SC 1,9599,,"[81937,77126]",['en'],15,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).