HB Instrument Company Plain Form Baum Hydrometers

HB Instrument Company Plain Form Baum Hydrometers. The petalled versions are used for measuring the relative humidity in a given area. Baum petalled hydrometers are also used for testing evaporation rates of liquids in bulk or semisolid form. Baum petalled hydrometers are used for testing evaporation rates of liquids in bulk or semisolid form. The petalled versions are also used for measuring specific gravity in liquid and semisolid form. The petalled forms are used for measuring the specific gr