Historical
ISO 4490:2001
Metallic powders - Determination of flow time by means of a calibrated funnel (Hall flowmeter)
This International Standard specifies a method for determining the flow time of metallic powders, including powders for hardmetals, by means of a calibrated funnel (Hall flowmeter).
The method is applicable only to powders which flow freely through the specified test orifice.
International Organization for Standardization [iso]