The purpose of the test instrument is to calculate the maximum and minimum of cohesive soil porosity, and used to calculate the relative density, to understand the soil in the state of nature or the elastic after compaction and the stability of soil grain structure.
Long neck funnel
250CM3 diameter: 5cm, h:12.7cm
1000CM3 diameter: 10cm, h: 12.7cm
Heavy hammer:1.25 High fall:15cm