# ISO 4490:1978 — Withdrawn and superseded ISO standards For ISO 4490:1978, item title is Metallic powders — Determination of flowability by means of a calibrated funnel (Hall flowmeter); status code is 9599; successor is ISO 4490:2001; withdrawn / published date is 1978-07-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 4490:1978 _(verified: appears in the quote below)_ - **Item title:** Metallic powders — Determination of flowability by means of a calibrated funnel (Hall flowmeter) _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4490:2001 - **Withdrawn / published date:** 1978-07-01 _(verified: appears in the quote below)_ ## What the source says > 10382,IS,,ISO 4490:1978,Metallic powders — Determination of flowability by means of a calibrated funnel (Hall flowmeter),Poudres métalliques — Détermination de l'aptitude à l'écoulement au moyen d'un entonnoir calibré (Appareil de Hall),1978-07-01,1,['77.160'],ISO/TC 119/SC 2,9599,,[31605],"['en','fr']",3,"
The method is applicable only to powders which flow freely through the specified test orifice. It measures the time required for 50 g of a metallic powder to flow through the orifice of a calibrated funnel. Specifies apparatus, calibration of the funnel, sampling, procedure, expression of results and test report.
" ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).