标准摘要
[中文适用范围]： 本文件规定了通过校准漏斗（霍尔流量计）测定金属粉末（包括硬质合金粉末）流量的方法。 该方法仅适用于自由流过指定测试孔的粉末。 [外文原描述]： ISO 4490:2018 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.
英文名称Metallic powders — Determination of flow rate by means of a calibrated funnel (Hall flowmeter)