# ISO 5256:1985 — Withdrawn and superseded ISO standards For ISO 5256:1985, item title is Steel pipes and fittings for buried or submerged pipe lines — External and internal coating by bitumen or coal tar derived materials; status code is 9599; successor is ISO/DIS 5256; withdrawn / published date is 1985-10-31, recorded from its source on 2026-08-05. - **Identifier:** ISO 5256:1985 _(verified: appears in the quote below)_ - **Item title:** Steel pipes and fittings for buried or submerged pipe lines — External and internal coating by bitumen or coal tar derived materials _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/DIS 5256 - **Withdrawn / published date:** 1985-10-31 _(verified: appears in the quote below)_ ## What the source says > 11253,IS,,ISO 5256:1985,Steel pipes and fittings for buried or submerged pipe lines — External and internal coating by bitumen or coal tar derived materials,Tubes et accessoires en acier utilisés pour canalisations enterrées ou immergées — Revêtements externe et interne au moyen de matériaux hydrocarbonés,1985-10-31,1,"['23.040.10','23.040.40']",ISO/TC 5/SC 1,9599,,[22274],"['en','fr']",54,"

Specifies the coatings suitable for protecting surfaces of steel pipes and fittings, either individually or after assembly, and also the conditions for the application of such protective coatings. Applies to welded and seamless pipes of non-alloy steels used for the conveyance of fluids. The coatings o ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).