1.1 This standard relates to the determination of apparent density of free flowing powders for powder metallurgical purposes by the funnel method.
Note — Results obtained by this method of test are not comparable with results obtained by other methods, and they do not necessarily represent the fill factor under production conditions.
1.1.1 The method is used for metallic powders that flow freely through a 2·5 mm diameter orifice. It may, however, also be used for powders that flow with difficulty through 2·5 mm diameter orifice, but flow freely through a 5 mm diameter orifice.
1.1.2 The determination of the apparent density of powders that will not flow through a 5 mm diameter orifice is not covered in this standard.
IS 4848-1981 history
1982IS 4848-1981 Method for determination of apparent density of free-flowing powders FdR Powder metallurgy applications