Standard Proctor Compact. Mold, 4″

Soil mold used where a compacted sample is required, such as standard proctor density/moisture tests. Mold volume is 1/30 ft3. Cold-rolled steel tubing, plated for rust resistance. Mold dimensions are 4″ ID x 4.584″ H with a 2″ detachable collar. Includes detachable base plate, studs and wing nuts.