本文件规定了在标准化条件下测定金属粉末表观密度的漏斗法。 该方法旨在用于自由流过2.5 mm直径孔口的金属粉末。然而，它可用于难以流过2.5 mm直径孔口但流过5mm直径孔口的粉末。 ISO 3923规定了测定不流经5 mm直径孔的粉末的表观密度的方法？2[1].

This document specifies the funnel method for the determination of the apparent density of metallic powders under standardized conditions. The method is intended for metallic powders that flow freely through a 2,5 mm diameter orifice. It can, however, be used for powders that flow with difficulty through a 2,5 mm diameter orifice but flow through a 5 mm diameter orifice. Methods for the determination of the apparent density of powders that will not flow through a 5 mm diameter orifice are specified in ISO 3923？2^[1].