This International Standard specifies a method for determining the flow rate of metallic powders, including cemented carbide powders, using a calibrated Hall flowmeter. This procedure is only applicable to powders that flow freely through the specified orifice.
EN ISO 4490:2014 history
2018EN ISO 4490:2018 Metallic powders - Determination of flow rate by means of a calibrated funnel (Hall flowmeter)
2014EN ISO 4490:2014 Metallic powders - Determination of flow rate by means of a calibrated funnel (Hall flowmeter) (ISO 4490:2014)
2008EN ISO 4490:2008 Metallic powders - Determination of flow rate by means of a calibrated funnel (Hall flowmeter)
2001EN ISO 4490:2001 Metallic Powders - Determination of Flow Time by Means of a Calibrated Funnel (Hall Flowmeter)