# ISO 1230:1992 — Withdrawn and superseded ISO standards

For ISO 1230:1992, item title is Photography — Determination of flash guide numbers; status code is 9599; successor is ISO/WD 1230 | ISO 1230:2007; withdrawn / published date is 1992-02-27, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1230:1992 _(verified: appears in the quote below)_
- **Item title:** Photography — Determination of flash guide numbers _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/WD 1230 | ISO 1230:2007
- **Withdrawn / published date:** 1992-02-27 _(verified: appears in the quote below)_

## What the source says

> 5849,IS,,ISO 1230:1992,Photography — Determination of flash guide numbers,Photographie — Détermination des nombres-guides des appareils à éclairs,1992-02-27,2,['37.040.10'],ISO/TC 42,9599,[5848],"[28689,43503]",['en'],5,<p>Specifies a method for measuring the reflector factor. Contains formulae for calculating the ISO guide number for flash lamps (with and without integral factors resp.). Gives terms and definitions.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).