In order to measure the tensile strength, the agglomerates are positioned in the circular sample mount. After which they are compressed and twisted. After the sample mount is filled, the two halves of the device are drawn apart and the forces needed are measured. The tensile strength can be calculated by relating the force needed to rupture the sample to the cross section of the apparatus. These methods and additional test methods are described in detail in [1-3].

In the figure the tensile strength of talcum as a function of the porosity is shown as an example.

Figure: Tensile strength of talcum [4].

The measurements of these values were taken using a device, which is in principle the same as the one shown in the figure. It is described in detail in [4].