# ISO/TR 6543:1979 — Withdrawn and superseded ISO standards For ISO/TR 6543:1979, item title is The development of tests for measuring toxic hazards in fire; status code is 9599; successor is ISO/TR 9122-1:1989; withdrawn / published date is 1979-11-01, recorded from its source on 2026-08-05. - **Identifier:** ISO/TR 6543:1979 _(verified: appears in the quote below)_ - **Item title:** The development of tests for measuring toxic hazards in fire _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/TR 9122-1:1989 - **Withdrawn / published date:** 1979-11-01 _(verified: appears in the quote below)_ ## What the source says > 12937,TR,,ISO/TR 6543:1979,The development of tests for measuring toxic hazards in fire,Élaboration d'essais de mesurage des risques d'intoxication par le feu,1979-11-01,1,['13.220.50'],ISO/TC 92,9599,,[16717],"['en','fr']",8, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).