# ISO 3923-1:1979 — Withdrawn and superseded ISO standards For ISO 3923-1:1979, item title is Metallic powders — Determination of apparent density — Part 1: Funnel method; status code is 9599; successor is ISO/CD 3923-1 | ISO 3923-1:2008; withdrawn / published date is 1979-11-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 3923-1:1979 _(verified: appears in the quote below)_ - **Item title:** Metallic powders — Determination of apparent density — Part 1: Funnel method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/CD 3923-1 | ISO 3923-1:2008 - **Withdrawn / published date:** 1979-11-01 _(verified: appears in the quote below)_ ## What the source says > 9558,IS,,ISO 3923-1:1979,Metallic powders — Determination of apparent density — Part 1: Funnel method,Poudres métalliques — Détermination de la masse volumique apparente — Partie 1: Méthode de l'entonnoir,1979-11-01,2,['77.160'],ISO/TC 119/SC 2,9599,,"[29858,41716]","['en','fr']",3,"
This second edition cancels and replaces the first edition (i. e. ISO 3923:1977). The method is intended for metallic powders that flow freely through a 2,5 mm diameter orifice. It may, however, be used for powders that flow with difficulty through a 2,5 mm diameter orifice but flow freely through a 5 mm diameter orifice. Methods for powders that will not flow through a 5 mm diameter orifice are specified in p ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).