Similar to 7745 but with overflow line to allow excess solvent to return to boiling flask. Used to determine the water content in petroleum and bituminous material. Similar to ASTM Type, except supplied with joints and stopcock to empty measuring tube during the determination. The 10mL size is subdivided in 0.1mL from 0-1mL, 0.2mL from 1-10mL; 20mL size in 0.1mL from 0-1mL, 0.2mL from 1-20mL. With 2mm bore glass or 1:5 solid PTFE stopcock plug. Joints are standard taper 24/40.