DMT is executable in penetrable materials. The DMT is suitable for sands, silts and clays, where the grains are small compared to the membrane diameter (60 mm). Testable soils range from extremely soft soils (Cu = 2-4 kPa, M=0.5 MPa) to hard soils/soft rocks (Cu = 1 MPa, M=400 MPa). The test is not suitable for gravel, however the blade is robust enough to cross gravel layers of about 0.5 m thickness.
Fig. 1 shows an example of DMT results obtained in hard soils.