Profile: Standard Scientific Instrument Co. offers laboratory and soil testing equipments. Our rotary vacuum pumps are mounted on a heavy steel base plate, and have a wide range of oil sealed pumps fitted with heavy duty electric motor. Pumps are fabricated out of high grade cast iron. Concrete permeability apparatus comprises of a brass/gunmetal cell of square/round cross-section mounted on a stand and a pressure chamber is connected to the cell through copper tubing & T-connector.