1. Place test sample on a flat, hard, rigid, horizontal surface.
2. Place a rigid load applicator on the middle of the test sample, see Figure 29.
3. Apply a uniformly distributed load on the load applicator with a constant speed of 10 mm/min, and measure the maximum force that is reached before the deformation reaches 5 mm. The compression force shall include the weight of applicator.
4. Document the reached compression force for each sample.