DIN Standards Committee Technology of Materials
DIN EN ISO 4490
Metallic powders - Determination of flow rate by means of a calibrated funnel (Hall flowmeter) (ISO 4490:2014); German version EN ISO 4490:2014
Metallpulver - Ermittlung der Durchflussrate mit Hilfe eines kalibrierten Trichters (Hall flowmeter) (ISO 4490:2014); Deutsche Fassung EN ISO 4490:2014
Overview
This document has been prepared by Technical Committee ISO/TC 119 "Powder metallurgy" (secretariat: SIS, Sweden), in collaboration with Technical Committee CEN/SS M11 "Powder metallurgy" (secretariat: CCMC). The responsible German committee is Working Committee NA 145-01-02 AA "Probenahme und Prüfverfahren für Pulver (einschließlich Pulver für Hartmetalle)" ("Sampling and testing methods for powders (including powders for hardmetals)") of the Standards Committee Technology of Materials (NWT) at DIN. This International Standard specifies a method for determining the flow rate of metallic powders, including powders for hard metals, by means of a calibrated funnel (Hall flowmeter). The method is applicable only to powders which flow freely through the specified test orifice of the funnel. This standard differs from DIN EN ISO 4490:2009-02 as follows: a) in the German version, the term "Durchflussdauer" has been replaced by "Durchflussrate" (flow rate); b) in 3.1, a NOTE has been added; c) the term "stopwatch" has been replaced by "timing device"; d) Figure 1 has been modified so as to be linguistically neutral; e) the standard has been editorially revised.
Responsible national committee
NA 145-01-06 AA - Powder metallurgy
