ISO 61:1976, Plastics - Determination of apparent density of moulding material that cannot be poured from a specified funnel

A portion of 60 g of loose moulding material is dropped little by little into a measuring cylinder as evenly distributed as possible. A plunger with specified mass fitting to the measuring cylinder is slowly lowered until it is entirely supported by the material. After 1 min the volume of the material with the plunger resting upon it, shall be determined and the apparent density shall be calculated. This title may contain less than 24 pages of technical content.