The bulk density of powders can be extremely difficult to measure since the slightest disturbance may result in a change in the result. This is caused by the relationship between the particles that constitute the powder bulk. This same relationship affects the ability of the powder to flow.
The bulk density of a powder may be described as the density of the powder ‘as poured’ into a measuring vessel.
A comparison of the bulk and tapped densities of powders can give an indication of the type of interaction present between the various particles making up the powder mass and hence provide an index of powder flowability (Hausner Ratio and Compressibility Index).
The Bulk Density Tester (Scott Volumeter) is described in USP Chapter <616> Method 2 and is designed for measuring the bulk density of fine powders and similar products.
Construction:
The apparatus consists of:
• A stainless steel top funnel having an integral stainless steel 18-mesh screen
• A baffle box containing four glass baffle plates over which the powder slides and bounces as it passes
• A stainless steel bottom funnel to direct the powder into the receiving cup
• A cylindrical receiving cup
• A wooden stand to support the apparatus and to ensure that the cup when placed in position is exactly 19mm from the bottom of the funnel
| Specifications | |
| Receiving Cup | |
| Volume: | 25ml ± 0.05ml |
| Description | Part No | Qty | List Price | |
| Bulk Density Tester | 6302 | Each | ||