This International Standard specifies a method for determining the flow rate of metal powders, including hardmetal powders, using a calibrated funnel (Hall apparatus). The method is only applicable to powders which flow freely through the specified test port.
NF A95-113:2014 history
2014NF A95-113:2014 Metallic powders - Determination of flow rate by means of a calibrated funnel (Hall flowmeter)
2008NF A95-113:2008 Metallic powders - Determination of flow rate by means of a calibrated funnel (Hall flowmeter).