?NORM EN ISO 4490: 2018 10 01现行
Metallic powders - Determination of flow rate by means of a calibrated funnel (Hall flowmeter) (ISO 4490:2018)
出版：Osterreichisches Normungsinstitut/Austrian Standards
专家解读视频
This document 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.
EN ISO 4490 : 2014 - Identical
EN ISO 4490 : 2018 - Identical
EN ISO 4490 : 2014 - Identical
EN ISO 4490 : 2018 - Identical
