As Per IS : 4031-1968

Used for finding specific gravity of Hydraulic Cement. Made from Borosil glass.

The flask is 243mm in total height, having a bulb of 90mm dia of 250ml approsimate capacity.

The long neck of the flask has at top a funnel of 50mm dia in which fits a ground glass stopper.

The neck hasover-all 11mm I.D. upper portion is graduated from 18ml to 24 ml with. 1ml graduation just at the bottom of the neck 1 ml capacity is marked in between there is 17ml capacity bulb.