# ISO 3690:2012 — Withdrawn and superseded ISO standards For ISO 3690:2012, item title is Welding and allied processes — Determination of hydrogen content in arc weld metal; status code is 9599; successor is ISO 3690:2018; withdrawn / published date is 2012-03-15, recorded from its source on 2026-08-05. - **Identifier:** ISO 3690:2012 _(verified: appears in the quote below)_ - **Item title:** Welding and allied processes — Determination of hydrogen content in arc weld metal _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 3690:2018 - **Withdrawn / published date:** 2012-03-15 _(verified: appears in the quote below)_ ## What the source says > 44246,IS,,ISO 3690:2012,Welding and allied processes — Determination of hydrogen content in arc weld metal,Soudage et techniques connexes — Détermination de la teneur en hydrogène dans le métal fondu pour le soudage à l'arc,2012-03-15,3,['25.160.40'],IIW,9599,[22157],[72150],"['en','fr']",23,"

ISO 3690:2011 specifies the sampling and analytical procedure for the determination of diffusible hydrogen in martensitic, bainitic, and ferritic steel weld metal arising from the welding of such steels using arc welding processes with filler metal.

The techniques specified in ISO 3690:2011 include collection of diffusible hydrogen via displacement of mercury or collection into a headspace fill ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).