# ISO/IEC Guide 43:1984 — Withdrawn and superseded ISO standards For ISO/IEC Guide 43:1984, item title is Development and operation of laboratory proficiency testing; status code is 9599; successor is ISO/IEC Guide 43-1:1997 | ISO/IEC Guide 43-2:1997; withdrawn / published date is 1984-09-01, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC Guide 43:1984 _(verified: appears in the quote below)_ - **Item title:** Development and operation of laboratory proficiency testing _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC Guide 43-1:1997 | ISO/IEC Guide 43-2:1997 - **Withdrawn / published date:** 1984-09-01 _(verified: appears in the quote below)_ ## What the source says > 19749,GUIDE,,ISO/IEC Guide 43:1984,Development and operation of laboratory proficiency testing,Développement et mise en oeuvre des essais d'aptitude de laboratoires,1984-09-01,1,['03.120.20'],ISO/CASCO,9599,,"[27216,27217]",,, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).