This standard specifically prescribes a method for determining the apparent density of particular loose molding materials, such as powders or granules. Unlike general methods, this approach is applicable to materials that cannot flow automatically from a standard funnel due to poor flowability. The core of the test involves measuring the volume of the material after compression by applying a standard mass piston (approximately 2.3 kg) to a fixed mass sample placed in a dedicated metal measuring cylinder, thereby calculating its apparent density. In addition to the specialized measuring cylinder and piston, implementing this standard requires the use of a balance accurate to 0.1 grams and a ruler accurate to 1 millimeter to complete the weighing and height measurement of the sample.