Used for finding specific gravity of Hydraulic cement. Made from brosill
glass. The flask is 243mm in total height, having a buld of 90mm dia of
25ml approximate capacity. The long neck of the flask has at a top
funnel of 50mm dia in which fits a ground glass stoper. The neck has
over all 11 I.D. Upper portionis graduated from 18 ml to 24 ml with .1
ml graduation. Just at the bottom of the nek 1ml capacity is marked in
between there is 17ml capacity bulb.