A) Before each test, it is necessary to saturate the piezocone to allow the measurement of pore pressures. There are two different saturation techniques:
Saturation with silicone oil (recommended for soils with very shallow water table levels):
Saturation with silicone grease (recommended for soils with deeper levels):
B) To ensure accurate data recording, before each test it is essential to carefully clean and grease the moving parts of the piezocone, following the instructions shown in this video: