This tool is designed specifically to conform to California Bearing Ratio (CBR) tests. It meets requirements for ASTM or COE methods. CBR Penetration Piston is 7.5 x 1.95in (191 x 49.6mm) LxDiam. and fits standard fixtures for use in testing. Choose models with threaded male connectors of 1/2in (12.7mm) or 3/4in (19mm) diameters.
The Piston Extension Set and Connector Set accessories are required for proper set up and use of Field CBR Testing Two Speed ASTM Jack and the Three Speed COE Jack, Load Rings and Piston Assembly.