The document describes procedures for determining soil density through a sand replacement test. The test involves first calibrating the test apparatus by measuring the volume and mass of sand poured into a cylindrical container to determine the density of the sand. Then, a hole is excavated in the soil and the mass of excavated soil is measured. Sand is poured into the hole until full, and its mass is measured before and after to calculate the volume of the hole. Using the known densities of the sand and mass of excavated soil, the density of the soil can be determined. Key measurements include mass, volume, and density of both sand and soil samples.