This standard is applicable to the determination of bulk density of magnetic oxide powders that cannot flow freely through apertures of 5 mm. It is not applicable to powders that are easily broken during vibration, such as needle-shaped and fibrous powders.
SJ/T 10215-1991 history
1991SJ/T 10215-1991 Determination of density for magnetic oxide powders.Determination of apparent density:Oscillating funnel method