# ISO 6342:1993 — Withdrawn and superseded ISO standards For ISO 6342:1993, item title is Micrographics — Aperture cards — Method of measuring thickness of buildup area; status code is 9599; successor is ISO 6342:2003; withdrawn / published date is 1993-08-05, recorded from its source on 2026-08-05. - **Identifier:** ISO 6342:1993 _(verified: appears in the quote below)_ - **Item title:** Micrographics — Aperture cards — Method of measuring thickness of buildup area _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6342:2003 - **Withdrawn / published date:** 1993-08-05 _(verified: appears in the quote below)_ ## What the source says > 12641,IS,,ISO 6342:1993,Micrographics — Aperture cards — Method of measuring thickness of buildup area,Micrographie — Cartes à fenêtre — Méthode de mesurage de la zone de surépaisseur,1993-08-05,1,['37.080'],ISO/TC 171/SC 2,9599,,[35521],"['en','fr']",3,

The method specified determines the buildup thickness of the aperture card as the difference between the thickness of the buildup area and the thickness of the card both measured using a micrometer.

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).