# ISO 3545:1981 — Withdrawn and superseded ISO standards For ISO 3545:1981, item title is Steel tubes and tubular shaped accessories with circular cross-section — Symbols to be used in specifications; status code is 9599; successor is ISO 3545-1:1989 | ISO 3545-2:1989 | ISO 3545-3:1989; withdrawn / published date is 1981-07-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 3545:1981 _(verified: appears in the quote below)_ - **Item title:** Steel tubes and tubular shaped accessories with circular cross-section — Symbols to be used in specifications _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 3545-1:1989 | ISO 3545-2:1989 | ISO 3545-3:1989 - **Withdrawn / published date:** 1981-07-01 _(verified: appears in the quote below)_ ## What the source says > 8936,IS,,ISO 3545:1981,Steel tubes and tubular shaped accessories with circular cross-section — Symbols to be used in specifications,Tubes en acier et accessoires de forme tubulaire à section circulaire — Symboles à utiliser dans les spécifications,1981-07-01,1,"['23.040.99','23.040.10']",ISO/TC 5/SC 1,9599,,"[8937,8938,8939]","['en','fr']",3, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).