This Standard specifies the funnel method for the determination of the apparent density of metallic powders.
The method is intended for metallic powders that flow freely through a 2.5 mm diameter orifice. It may, however, be used for powders that flow with difficulty through a 2.5 mm diameter orifice but flow freely through a 5 mm diameter orifice.
NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.
ISO 3923-1:2008 Metallic powders-Determination of apparent density- Part 1: Funnel method (MOD)
In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/lEC Guide 21-1.