# ISO 2691:1973 — Withdrawn and superseded ISO standards For ISO 2691:1973, item title is Photography — Expendable photoflash lamps — Definitions and requirements for luminous flux/time characteristics; status code is 9599; successor is ISO 2691:1987; withdrawn / published date is 1973-06-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 2691:1973 _(verified: appears in the quote below)_ - **Item title:** Photography — Expendable photoflash lamps — Definitions and requirements for luminous flux/time characteristics _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 2691:1987 - **Withdrawn / published date:** 1973-06-01 _(verified: appears in the quote below)_ ## What the source says > 7651,IS,,ISO 2691:1973,Photography — Expendable photoflash lamps — Definitions and requirements for luminous flux/time characteristics,Photographie — Lampes à éclairs à combustion — Définitions et spécifications des caractéristiques flux lumineux/temps,1973-06-01,1,['37.040.10'],ISO/TC 42,9599,,[7652],"['en','fr']",1, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).