Helium pycnometry

Helium pycnometry is a technique to obtain information on the true density of solids. Since helium, which can enter even the smallest voids or pores, is used to measure the unknown volume, the final result is often referred to as skeletal density.
The density measurements are performed on a Quantachrome pentapycnometer and by application of many different sample cell sizes, a broad range of sample volumes and weights can be analyzed.