本文件规定了通过校准漏斗（古斯塔夫森流量计）测定金属粉末（包括硬质合金粉末、金属粉末和有机添加剂（如润滑剂）混合物）流量的方法。该方法仅适用于通过规定试验孔自由流动的粉末。

This document specifies a method for determining the flow rate of metallic powders, including powders for hardmetals and mixes of metallic powders and organic additives such as lubricants, by means of a calibrated funnel (Gustavsson flowmeter). The method is applicable only to powders which flow freely through the specified test orifice.