# ISO 6520:1982 — Withdrawn and superseded ISO standards For ISO 6520:1982, item title is Classification of imperfections in metallic fusion welds, with explanations; status code is 9599; successor is ISO 6520-1:1998 | ISO/WD 6520; withdrawn / published date is 1982-12-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 6520:1982 _(verified: appears in the quote below)_ - **Item title:** Classification of imperfections in metallic fusion welds, with explanations _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6520-1:1998 | ISO/WD 6520 - **Withdrawn / published date:** 1982-12-01 _(verified: appears in the quote below)_ ## What the source says > 12904,IS,,ISO 6520:1982,"Classification of imperfections in metallic fusion welds, with explanations","Classification des défauts dans les soudures par fusion des métaux, avec commentaires explicatifs",1982-12-01,1,['25.160.40'],ISO/TC 44/SC 7,9599,,"[21097,2370]","['en','fr']",12, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).